org.camunda.bpm.engine.impl

Class TaskServiceImpl

java.lang.Object

org.camunda.bpm.engine.impl.ServiceImpl

org.camunda.bpm.engine.impl.TaskServiceImpl

All Implemented Interfaces:

TaskService

public class TaskServiceImpl
extends ServiceImpl
implements TaskService

Author:

Tom Baeyens, Joram Barrez

Field Summary

Fields inherited from class org.camunda.bpm.engine.impl.ServiceImpl

commandExecutor

Constructor Summary

Constructors

Constructor and Description
TaskServiceImpl()

Method Summary

Modifier and Type	Method and Description
void	addCandidateGroup(String taskId, String groupId) Convenience shorthand for TaskService.addGroupIdentityLink(String, String, String); with type IdentityLinkType.CANDIDATE
void	addCandidateUser(String taskId, String userId) Convenience shorthand for TaskService.addUserIdentityLink(String, String, String); with type IdentityLinkType.CANDIDATE
void	addComment(String taskId, String processInstance, String message) Add a comment to a task and/or process instance.
void	addGroupIdentityLink(String taskId, String groupId, String identityLinkType) Involves a group with a task.
void	addUserIdentityLink(String taskId, String userId, String identityLinkType) Involves a user with a task.
void	claim(String taskId, String userId) Claim responsibility for a task: the given user is made assignee for the task.
void	complete(String taskId) Marks a task as done and continues process execution.
void	complete(String taskId, Map<String,Object> variables) Marks a task as done and continues process execution.
VariableMap	completeWithVariablesInReturn(String taskId, Map<String,Object> variables, boolean deserializeValues) Marks a task as done and continues process execution.
Attachment	createAttachment(String attachmentType, String taskId, String processInstanceId, String attachmentName, String attachmentDescription, InputStream content) Add a new attachment to a task and/or a process instance and use an input stream to provide the content please use method in runtime service to operate on process instance.
Attachment	createAttachment(String attachmentType, String taskId, String processInstanceId, String attachmentName, String attachmentDescription, String url) Add a new attachment to a task and/or a process instance and use an url as the content please use method in runtime service to operate on process instance Either taskId or processInstanceId has to be provided
Comment	createComment(String taskId, String processInstance, String message) Creates a comment to a task and/or process instance and returns the comment.
NativeTaskQuery	createNativeTaskQuery() Returns a new
TaskQuery	createTaskQuery() Returns a new TaskQuery that can be used to dynamically query tasks.
TaskReport	createTaskReport() Instantiate a task report
void	delegateTask(String taskId, String userId) Delegates the task to another user.
void	deleteAttachment(String attachmentId) Delete an attachment
void	deleteCandidateGroup(String taskId, String groupId) Convenience shorthand for TaskService.deleteGroupIdentityLink(String, String, String); with type IdentityLinkType.CANDIDATE
void	deleteCandidateUser(String taskId, String userId) Convenience shorthand for TaskService.deleteUserIdentityLink(String, String, String); with type IdentityLinkType.CANDIDATE
void	deleteGroupIdentityLink(String taskId, String groupId, String identityLinkType) Removes the association between a group and a task for the given identityLinkType.
void	deleteTask(String taskId) Deletes the given task, not deleting historic information that is related to this task.
void	deleteTask(String taskId, boolean cascade) Deletes the given task.
void	deleteTask(String taskId, String deleteReason) Deletes the given task, not deleting historic information that is related to this task.
void	deleteTaskAttachment(String taskId, String attachmentId) Delete an attachment to the given task id and attachment id
void	deleteTasks(Collection<String> taskIds) Deletes all tasks of the given collection, not deleting historic information that is related to these tasks.
void	deleteTasks(Collection<String> taskIds, boolean cascade) Deletes all tasks of the given collection.
void	deleteTasks(Collection<String> taskIds, String deleteReason) Deletes all tasks of the given collection, not deleting historic information that is related to these tasks.
void	deleteUserIdentityLink(String taskId, String userId, String identityLinkType) Removes the association between a user and a task for the given identityLinkType.
Attachment	getAttachment(String attachmentId) Retrieve a particular attachment
InputStream	getAttachmentContent(String attachmentId) Retrieve stream content of a particular attachment
List<IdentityLink>	getIdentityLinksForTask(String taskId) Retrieves the IdentityLinks associated with the given task.
List<Attachment>	getProcessInstanceAttachments(String processInstanceId) The list of attachments associated to a process instance
List<Comment>	getProcessInstanceComments(String processInstanceId) The comments related to the given process instance.
List<Task>	getSubTasks(String parentTaskId) The list of subtasks for this parent task
Attachment	getTaskAttachment(String taskId, String attachmentId) Retrieve a particular attachment to the given task id and attachment id
InputStream	getTaskAttachmentContent(String taskId, String attachmentId) Retrieve stream content of a particular attachment to the given task id and attachment id
List<Attachment>	getTaskAttachments(String taskId) The list of attachments associated to a task
Comment	getTaskComment(String taskId, String commentId) Retrieve a particular task comment
List<Comment>	getTaskComments(String taskId) The comments related to the given task.
List<Event>	getTaskEvents(String taskId) The all events related to the given task.
Object	getVariable(String taskId, String variableName) Get a variables and search in the task scope and if available also the execution scopes.
Object	getVariableLocal(String taskId, String variableName) Get a variables and only search in the task scope.
<T extends TypedValue> T	getVariableLocalTyped(String taskId, String variableName) Get a variables and only search in the task scope.
<T extends TypedValue> T	getVariableLocalTyped(String taskId, String variableName, boolean deserializeValue) Get a variables and only search in the task scope.
VariableMap	getVariables(String taskId) Get all variables and search in the task scope and if available also the execution scopes.
VariableMap	getVariables(String taskId, Collection<String> variableNames) Get values for all given variableNames
VariableMap	getVariablesLocal(String taskId) Get all variables and search only in the task scope.
VariableMap	getVariablesLocal(String taskId, Collection<String> variableNames) Get a variable on a task
VariableMap	getVariablesLocalTyped(String taskId) Get all variables and search only in the task scope.
VariableMap	getVariablesLocalTyped(String taskId, boolean deserializeValues) Get all variables and search only in the task scope.
VariableMap	getVariablesLocalTyped(String taskId, Collection<String> variableNames, boolean deserializeValues) Get values for all given variableName.
VariableMap	getVariablesTyped(String taskId) Get all variables and search in the task scope and if available also the execution scopes.
VariableMap	getVariablesTyped(String taskId, boolean deserializeValues) Get all variables and search in the task scope and if available also the execution scopes.
VariableMap	getVariablesTyped(String taskId, Collection<String> variableNames, boolean deserializeValues) Get values for all given variableName
<T extends TypedValue> T	getVariableTyped(String taskId, String variableName) Get a variables and search in the task scope and if available also the execution scopes.
<T extends TypedValue> T	getVariableTyped(String taskId, String variableName, boolean deserializeValue) Get a variables and search in the task scope and if available also the execution scopes.
protected <T extends TypedValue> T	getVariableTyped(String taskId, String variableName, boolean isLocal, boolean deserializeValue)
void	handleBpmnError(String taskId, String errorCode) Signals that a business error appears, which should be handled by the process engine.
void	handleBpmnError(String taskId, String errorCode, String errorMessage)
void	handleBpmnError(String taskId, String errorCode, String errorMessage, Map<String,Object> variables)
void	handleEscalation(String taskId, String escalationCode) Signals that an escalation appears, which should be handled by the process engine.
void	handleEscalation(String taskId, String escalationCode, Map<String,Object> variables) Signals that an escalation appears, which should be handled by the process engine.
Task	newTask() Creates a new task that is not related to any process instance.
Task	newTask(String taskId) create a new task with a user defined task id
void	removeVariable(String taskId, String variableName) Removes the variable from the task.
void	removeVariableLocal(String taskId, String variableName) Removes the variable from the task (not considering parent scopes).
void	removeVariables(String taskId, Collection<String> variableNames) Removes all variables in the given collection from the task.
void	removeVariablesLocal(String taskId, Collection<String> variableNames) Removes all variables in the given collection from the task (not considering parent scopes).
void	resolveTask(String taskId) Marks that the assignee is done with the task delegated to her and that it can be sent back to the owner.
void	resolveTask(String taskId, Map<String,Object> variables) Marks that the assignee is done with the task delegated to her and that it can be sent back to the owner with the provided variables.
void	saveAttachment(Attachment attachment) Update the name and decription of an attachment
void	saveTask(Task task) Saves the given task to the persistent data store.
void	setAssignee(String taskId, String userId) Changes the assignee of the given task to the given userId.
void	setOwner(String taskId, String userId) Transfers ownership of this task to another user.
void	setPriority(String taskId, int priority) Changes the priority of the task.
void	setVariable(String taskId, String variableName, Object value) Set variable on a task.
void	setVariableLocal(String taskId, String variableName, Object value) Set variable on a task.
void	setVariables(String taskId, Map<String,? extends Object> variables) Set variables on a task.
protected void	setVariables(String taskId, Map<String,? extends Object> variables, boolean local)
void	setVariablesLocal(String taskId, Map<String,? extends Object> variables) Set variables on a task.
void	updateVariables(String taskId, Map<String,? extends Object> modifications, Collection<String> deletions)
protected void	updateVariables(String taskId, Map<String,? extends Object> modifications, Collection<String> deletions, boolean local)
void	updateVariablesLocal(String taskId, Map<String,? extends Object> modifications, Collection<String> deletions)

Methods inherited from class org.camunda.bpm.engine.impl.ServiceImpl

getCommandExecutor, setCommandExecutor

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

TaskServiceImpl

public TaskServiceImpl()

Method Detail

newTask

public Task newTask()

Description copied from interface: TaskService

Creates a new task that is not related to any process instance. The returned task is transient and must be saved with TaskService.saveTask(Task) 'manually'.

Specified by:

newTask in interface TaskService

newTask

public Task newTask(String taskId)

Description copied from interface: TaskService

create a new task with a user defined task id

Specified by:

newTask in interface TaskService

saveTask

public void saveTask(Task task)

Description copied from interface: TaskService

Saves the given task to the persistent data store. If the task is already present in the persistent store, it is updated. After a new task has been saved, the task instance passed into this method is updated with the id of the newly created task.

Specified by:

saveTask in interface TaskService

Parameters:

task - the task, cannot be null.

deleteTask

public void deleteTask(String taskId)

Description copied from interface: TaskService

Deletes the given task, not deleting historic information that is related to this task.

Specified by:

deleteTask in interface TaskService

Parameters:

taskId - The id of the task that will be deleted, cannot be null. If no task exists with the given taskId, the operation is ignored.

deleteTasks

public void deleteTasks(Collection<String> taskIds)

Description copied from interface: TaskService

Deletes all tasks of the given collection, not deleting historic information that is related to these tasks.

Specified by:

deleteTasks in interface TaskService

Parameters:

taskIds - The id's of the tasks that will be deleted, cannot be null. All id's in the list that don't have an existing task will be ignored.

deleteTask

public void deleteTask(String taskId,
                       boolean cascade)

Description copied from interface: TaskService

Deletes the given task.

Specified by:

deleteTask in interface TaskService

Parameters:

taskId - The id of the task that will be deleted, cannot be null. If no task exists with the given taskId, the operation is ignored.

cascade - If cascade is true, also the historic information related to this task is deleted.

deleteTasks

public void deleteTasks(Collection<String> taskIds,
                        boolean cascade)

Description copied from interface: TaskService

Deletes all tasks of the given collection.

Specified by:

deleteTasks in interface TaskService

Parameters:

taskIds - The id's of the tasks that will be deleted, cannot be null. All id's in the list that don't have an existing task will be ignored.

cascade - If cascade is true, also the historic information related to this task is deleted.

deleteTask

public void deleteTask(String taskId,
                       String deleteReason)

Description copied from interface: TaskService

Deletes the given task, not deleting historic information that is related to this task.

Specified by:

deleteTask in interface TaskService

Parameters:

taskId - The id of the task that will be deleted, cannot be null. If no task exists with the given taskId, the operation is ignored.

deleteReason - reason the task is deleted. Is recorded in history, if enabled.

deleteTasks

public void deleteTasks(Collection<String> taskIds,
                        String deleteReason)

Description copied from interface: TaskService

Deletes all tasks of the given collection, not deleting historic information that is related to these tasks.

Specified by:

deleteTasks in interface TaskService

Parameters:

taskIds - The id's of the tasks that will be deleted, cannot be null. All id's in the list that don't have an existing task will be ignored.

deleteReason - reason the task is deleted. Is recorded in history, if enabled.

setAssignee

public void setAssignee(String taskId,
                        String userId)

Description copied from interface: TaskService

Changes the assignee of the given task to the given userId. No check is done whether the user is known by the identity component.

Specified by:

setAssignee in interface TaskService

Parameters:

taskId - id of the task, cannot be null.

userId - id of the user to use as assignee.

setOwner

public void setOwner(String taskId,
                     String userId)

Description copied from interface: TaskService

Transfers ownership of this task to another user. No check is done whether the user is known by the identity component.

Specified by:

setOwner in interface TaskService

Parameters:

taskId - id of the task, cannot be null.

userId - of the person that is receiving ownership.

addCandidateUser

public void addCandidateUser(String taskId,
                             String userId)

Description copied from interface: TaskService

Convenience shorthand for TaskService.addUserIdentityLink(String, String, String); with type IdentityLinkType.CANDIDATE

Specified by:

addCandidateUser in interface TaskService

Parameters:

taskId - id of the task, cannot be null.

userId - id of the user to use as candidate, cannot be null.

addCandidateGroup

public void addCandidateGroup(String taskId,
                              String groupId)

Description copied from interface: TaskService

Convenience shorthand for TaskService.addGroupIdentityLink(String, String, String); with type IdentityLinkType.CANDIDATE

Specified by:

addCandidateGroup in interface TaskService

Parameters:

taskId - id of the task, cannot be null.

groupId - id of the group to use as candidate, cannot be null.

addUserIdentityLink

public void addUserIdentityLink(String taskId,
                                String userId,
                                String identityLinkType)

Description copied from interface: TaskService

Involves a user with a task. The type of identity link is defined by the given identityLinkType.

Specified by:

addUserIdentityLink in interface TaskService

Parameters:

taskId - id of the task, cannot be null.

userId - id of the user involve, cannot be null.

identityLinkType - type of identityLink, cannot be null (@see IdentityLinkType).

addGroupIdentityLink

public void addGroupIdentityLink(String taskId,
                                 String groupId,
                                 String identityLinkType)

Description copied from interface: TaskService

Involves a group with a task. The type of identityLink is defined by the given identityLink.

Specified by:

addGroupIdentityLink in interface TaskService

Parameters:

taskId - id of the task, cannot be null.

groupId - id of the group to involve, cannot be null.

identityLinkType - type of identity, cannot be null (@see IdentityLinkType).

deleteCandidateGroup

public void deleteCandidateGroup(String taskId,
                                 String groupId)

Description copied from interface: TaskService

Convenience shorthand for TaskService.deleteGroupIdentityLink(String, String, String); with type IdentityLinkType.CANDIDATE

Specified by:

deleteCandidateGroup in interface TaskService

Parameters:

taskId - id of the task, cannot be null.

groupId - id of the group to use as candidate, cannot be null.

deleteCandidateUser

public void deleteCandidateUser(String taskId,
                                String userId)

Description copied from interface: TaskService

Convenience shorthand for TaskService.deleteUserIdentityLink(String, String, String); with type IdentityLinkType.CANDIDATE

Specified by:

deleteCandidateUser in interface TaskService

Parameters:

taskId - id of the task, cannot be null.

userId - id of the user to use as candidate, cannot be null.

deleteGroupIdentityLink

public void deleteGroupIdentityLink(String taskId,
                                    String groupId,
                                    String identityLinkType)

Description copied from interface: TaskService

Removes the association between a group and a task for the given identityLinkType.

Specified by:

deleteGroupIdentityLink in interface TaskService

Parameters:

taskId - id of the task, cannot be null.

groupId - id of the group to involve, cannot be null.

identityLinkType - type of identity, cannot be null (@see IdentityLinkType).

deleteUserIdentityLink

public void deleteUserIdentityLink(String taskId,
                                   String userId,
                                   String identityLinkType)

Description copied from interface: TaskService

Removes the association between a user and a task for the given identityLinkType.

Specified by:

deleteUserIdentityLink in interface TaskService

Parameters:

taskId - id of the task, cannot be null.

userId - id of the user involve, cannot be null.

identityLinkType - type of identityLink, cannot be null (@see IdentityLinkType).

getIdentityLinksForTask

public List<IdentityLink> getIdentityLinksForTask(String taskId)

Description copied from interface: TaskService

Retrieves the IdentityLinks associated with the given task. Such an IdentityLink informs how a certain identity (eg. group or user) is associated with a certain task (eg. as candidate, assignee, etc.)

Specified by:

getIdentityLinksForTask in interface TaskService

claim

public void claim(String taskId,
                  String userId)

Description copied from interface: TaskService

Claim responsibility for a task: the given user is made assignee for the task. The difference with TaskService.setAssignee(String, String) is that here a check is done if the task already has a user assigned to it. No check is done whether the user is known by the identity component.

Specified by:

claim in interface TaskService

Parameters:

taskId - task to claim, cannot be null.

userId - user that claims the task. When userId is null the task is unclaimed, assigned to no one.

complete

public void complete(String taskId)

Description copied from interface: TaskService

Marks a task as done and continues process execution. This method is typically called by a task list user interface after a task form has been submitted by the assignee.

Specified by:

complete in interface TaskService

Parameters:

taskId - the id of the task to complete, cannot be null.

complete

public void complete(String taskId,
                     Map<String,Object> variables)

Description copied from interface: TaskService

Marks a task as done and continues process execution. This method is typically called by a task list user interface after a task form has been submitted by the assignee and the required task parameters have been provided.

Specified by:

complete in interface TaskService

Parameters:

taskId - the id of the task to complete, cannot be null.

variables - task parameters. May be null or empty.

completeWithVariablesInReturn

public VariableMap completeWithVariablesInReturn(String taskId,
                                                 Map<String,Object> variables,
                                                 boolean deserializeValues)

Description copied from interface: TaskService

Marks a task as done and continues process execution. This method is typically called by a task list user interface after a task form has been submitted by the assignee and the required task parameters have been provided.

Specified by:

completeWithVariablesInReturn in interface TaskService

Parameters:

taskId - the id of the task to complete, cannot be null.

variables - task parameters. May be null or empty.

deserializeValues - if false, returned SerializableValues will not be deserialized (unless they are passed into this method as a deserialized value or if the BPMN process triggers deserialization)

Returns:

All task variables with their current value

delegateTask

public void delegateTask(String taskId,
                         String userId)

Description copied from interface: TaskService

Delegates the task to another user. This means that the assignee is set and the delegation state is set to DelegationState.PENDING. If no owner is set on the task, the owner is set to the current assignee of the task. The new assignee must use TaskService.resolveTask(String) to report back to the owner. Only the owner can complete the task.

Specified by:

delegateTask in interface TaskService

Parameters:

taskId - The id of the task that will be delegated.

userId - The id of the user that will be set as assignee.

resolveTask

public void resolveTask(String taskId)

Description copied from interface: TaskService

Marks that the assignee is done with the task delegated to her and that it can be sent back to the owner. Can only be called when this task is DelegationState.PENDING delegation. After this method returns, the delegation state is set to DelegationState.RESOLVED and the task can be completed.

Specified by:

resolveTask in interface TaskService

Parameters:

taskId - the id of the task to resolve, cannot be null.

resolveTask

public void resolveTask(String taskId,
                        Map<String,Object> variables)

Description copied from interface: TaskService

Marks that the assignee is done with the task delegated to her and that it can be sent back to the owner with the provided variables. Can only be called when this task is DelegationState.PENDING delegation. After this method returns, the delegation state is set to DelegationState.RESOLVED and the task can be completed.

Specified by:

resolveTask in interface TaskService

setPriority

public void setPriority(String taskId,
                        int priority)

Description copied from interface: TaskService

Changes the priority of the task. Authorization: actual owner / business admin

Specified by:

setPriority in interface TaskService

Parameters:

taskId - id of the task, cannot be null.

priority - the new priority for the task.

createTaskQuery

public TaskQuery createTaskQuery()

Description copied from interface: TaskService

Returns a new TaskQuery that can be used to dynamically query tasks.

Specified by:

createTaskQuery in interface TaskService

createNativeTaskQuery

public NativeTaskQuery createNativeTaskQuery()

Description copied from interface: TaskService

Returns a new

Specified by:

createNativeTaskQuery in interface TaskService

getVariables

public VariableMap getVariables(String taskId)

Description copied from interface: TaskService

Get all variables and search in the task scope and if available also the execution scopes. If you have many variables and you only need a few, consider using TaskService.getVariables(String, Collection) for better performance.

Specified by:

getVariables in interface TaskService

getVariablesTyped

public VariableMap getVariablesTyped(String taskId)

Description copied from interface: TaskService

Get all variables and search in the task scope and if available also the execution scopes. If you have many variables and you only need a few, consider using TaskService.getVariables(String, Collection) for better performance.

Specified by:

getVariablesTyped in interface TaskService

Parameters:

taskId - the id of the task

getVariablesTyped

public VariableMap getVariablesTyped(String taskId,
                                     boolean deserializeValues)

Description copied from interface: TaskService

Get all variables and search in the task scope and if available also the execution scopes. If you have many variables and you only need a few, consider using TaskService.getVariables(String, Collection) for better performance.

Specified by:

getVariablesTyped in interface TaskService

Parameters:

taskId - the id of the task

deserializeValues - if false, SerializableValues will not be deserialized.

getVariablesLocal

public VariableMap getVariablesLocal(String taskId)

Description copied from interface: TaskService

Get all variables and search only in the task scope. If you have many task local variables and you only need a few, consider using TaskService.getVariablesLocal(String, Collection) for better performance.

Specified by:

getVariablesLocal in interface TaskService

getVariablesLocalTyped

public VariableMap getVariablesLocalTyped(String taskId)

Description copied from interface: TaskService

Get all variables and search only in the task scope. If you have many task local variables and you only need a few, consider using TaskService.getVariablesLocal(String, Collection) for better performance.

Specified by:

getVariablesLocalTyped in interface TaskService

Parameters:

taskId - the id of the task

getVariablesLocalTyped

public VariableMap getVariablesLocalTyped(String taskId,
                                          boolean deserializeValues)

Description copied from interface: TaskService

Get all variables and search only in the task scope. If you have many task local variables and you only need a few, consider using TaskService.getVariablesLocal(String, Collection) for better performance.

Specified by:

getVariablesLocalTyped in interface TaskService

Parameters:

taskId - the id of the task

deserializeValues - if false, SerializableValues will not be deserialized.

getVariables

public VariableMap getVariables(String taskId,
                                Collection<String> variableNames)

Description copied from interface: TaskService

Get values for all given variableNames

Specified by:

getVariables in interface TaskService

getVariablesTyped

public VariableMap getVariablesTyped(String taskId,
                                     Collection<String> variableNames,
                                     boolean deserializeValues)

Description copied from interface: TaskService

Get values for all given variableName

Specified by:

getVariablesTyped in interface TaskService

Parameters:

taskId - the id of the task

variableNames - only fetch variables whose names are in the collection.

deserializeValues - if false, SerializableValues will not be deserialized.

getVariablesLocal

public VariableMap getVariablesLocal(String taskId,
                                     Collection<String> variableNames)

Description copied from interface: TaskService

Get a variable on a task

Specified by:

getVariablesLocal in interface TaskService

getVariablesLocalTyped

public VariableMap getVariablesLocalTyped(String taskId,
                                          Collection<String> variableNames,
                                          boolean deserializeValues)

Description copied from interface: TaskService

Get values for all given variableName. Only search in the local task scope.

Specified by:

getVariablesLocalTyped in interface TaskService

Parameters:

taskId - the id of the task

variableNames - only fetch variables whose names are in the collection.

deserializeValues - if false, SerializableValues will not be deserialized.

getVariable

public Object getVariable(String taskId,
                          String variableName)

Description copied from interface: TaskService

Get a variables and search in the task scope and if available also the execution scopes.

Specified by:

getVariable in interface TaskService

getVariableLocal

public Object getVariableLocal(String taskId,
                               String variableName)

Description copied from interface: TaskService

Get a variables and only search in the task scope.

Specified by:

getVariableLocal in interface TaskService

getVariableTyped

public <T extends TypedValue> T getVariableTyped(String taskId,
                                                 String variableName)

Description copied from interface: TaskService

Get a variables and search in the task scope and if available also the execution scopes.

Specified by:

getVariableTyped in interface TaskService

Parameters:

taskId - the id of the task

variableName - the name of the variable to fetch

Returns:

the TypedValue for the variable or 'null' in case no such variable exists.

getVariableTyped

public <T extends TypedValue> T getVariableTyped(String taskId,
                                                 String variableName,
                                                 boolean deserializeValue)

Description copied from interface: TaskService

Get a variables and search in the task scope and if available also the execution scopes.

Specified by:

getVariableTyped in interface TaskService

Parameters:

taskId - the id of the task

variableName - the name of the variable to fetch

deserializeValue - if false a, SerializableValue will not be deserialized.

Returns:

the TypedValue for the variable or 'null' in case no such variable exists.

getVariableLocalTyped

public <T extends TypedValue> T getVariableLocalTyped(String taskId,
                                                      String variableName)

Description copied from interface: TaskService

Get a variables and only search in the task scope.

Specified by:

getVariableLocalTyped in interface TaskService

Parameters:

taskId - the id of the task

variableName - the name of the variable to fetch

Returns:

the TypedValue for the variable or 'null' in case no such variable exists.

getVariableLocalTyped

public <T extends TypedValue> T getVariableLocalTyped(String taskId,
                                                      String variableName,
                                                      boolean deserializeValue)

Description copied from interface: TaskService

Get a variables and only search in the task scope.

Specified by:

getVariableLocalTyped in interface TaskService

Parameters:

taskId - the id of the task

variableName - the name of the variable to fetch

deserializeValue - if false a, SerializableValue will not be deserialized.

Returns:

the TypedValue for the variable or 'null' in case no such variable exists.

getVariableTyped

protected <T extends TypedValue> T getVariableTyped(String taskId,
                                                    String variableName,
                                                    boolean isLocal,
                                                    boolean deserializeValue)

setVariable

public void setVariable(String taskId,
                        String variableName,
                        Object value)

Description copied from interface: TaskService

Set variable on a task. If the variable is not already existing, it will be created in the most outer scope. This means the process instance in case this task is related to an execution.

Specified by:

setVariable in interface TaskService

setVariableLocal

public void setVariableLocal(String taskId,
                             String variableName,
                             Object value)

Description copied from interface: TaskService

Set variable on a task. If the variable is not already existing, it will be created in the task.

Specified by:

setVariableLocal in interface TaskService

setVariables

public void setVariables(String taskId,
                         Map<String,? extends Object> variables)

Description copied from interface: TaskService

Set variables on a task. If the variable is not already existing, it will be created in the most outer scope. This means the process instance in case this task is related to an execution.

Specified by:

setVariables in interface TaskService

setVariablesLocal

public void setVariablesLocal(String taskId,
                              Map<String,? extends Object> variables)

Description copied from interface: TaskService

Set variables on a task. If the variable is not already existing, it will be created in the task.

Specified by:

setVariablesLocal in interface TaskService

setVariables

protected void setVariables(String taskId,
                            Map<String,? extends Object> variables,
                            boolean local)

updateVariablesLocal

public void updateVariablesLocal(String taskId,
                                 Map<String,? extends Object> modifications,
                                 Collection<String> deletions)

updateVariables

public void updateVariables(String taskId,
                            Map<String,? extends Object> modifications,
                            Collection<String> deletions)

updateVariables

protected void updateVariables(String taskId,
                               Map<String,? extends Object> modifications,
                               Collection<String> deletions,
                               boolean local)

removeVariable

public void removeVariable(String taskId,
                           String variableName)

Description copied from interface: TaskService

Removes the variable from the task. When the variable does not exist, nothing happens.

Specified by:

removeVariable in interface TaskService

removeVariableLocal

public void removeVariableLocal(String taskId,
                                String variableName)

Description copied from interface: TaskService

Removes the variable from the task (not considering parent scopes). When the variable does not exist, nothing happens.

Specified by:

removeVariableLocal in interface TaskService

removeVariables

public void removeVariables(String taskId,
                            Collection<String> variableNames)

Description copied from interface: TaskService

Removes all variables in the given collection from the task. Non existing variable names are simply ignored.

Specified by:

removeVariables in interface TaskService

removeVariablesLocal

public void removeVariablesLocal(String taskId,
                                 Collection<String> variableNames)

Description copied from interface: TaskService

Removes all variables in the given collection from the task (not considering parent scopes). Non existing variable names are simply ignored.

Specified by:

removeVariablesLocal in interface TaskService

addComment

public void addComment(String taskId,
                       String processInstance,
                       String message)

Description copied from interface: TaskService

Add a comment to a task and/or process instance.

Specified by:

addComment in interface TaskService

createComment

public Comment createComment(String taskId,
                             String processInstance,
                             String message)

Description copied from interface: TaskService

Creates a comment to a task and/or process instance and returns the comment.

Specified by:

createComment in interface TaskService

getTaskComments

public List<Comment> getTaskComments(String taskId)

Description copied from interface: TaskService

The comments related to the given task.

Specified by:

getTaskComments in interface TaskService

getTaskComment

public Comment getTaskComment(String taskId,
                              String commentId)

Description copied from interface: TaskService

Retrieve a particular task comment

Specified by:

getTaskComment in interface TaskService

getTaskEvents

public List<Event> getTaskEvents(String taskId)

Description copied from interface: TaskService

The all events related to the given task.

As of Camunda Platform 7.4 task events are only written in context of a logged in user. This behavior can be toggled in the process engine configuration using the property legacyUserOperationLog (default false). To restore the engine's previous behavior, set the flag to true.

Specified by:

getTaskEvents in interface TaskService

See Also:

HistoryService.createUserOperationLogQuery()

getProcessInstanceComments

public List<Comment> getProcessInstanceComments(String processInstanceId)

Description copied from interface: TaskService

The comments related to the given process instance.

Specified by:

getProcessInstanceComments in interface TaskService

createAttachment

public Attachment createAttachment(String attachmentType,
                                   String taskId,
                                   String processInstanceId,
                                   String attachmentName,
                                   String attachmentDescription,
                                   InputStream content)

Description copied from interface: TaskService

Add a new attachment to a task and/or a process instance and use an input stream to provide the content please use method in runtime service to operate on process instance. Either taskId or processInstanceId has to be provided

Specified by:

createAttachment in interface TaskService

Parameters:

attachmentType - - name of the attachment, can be null

taskId - - task that should have an attachment

processInstanceId - - id of a process to use if task id is null

attachmentName - - name of the attachment, can be null

attachmentDescription - - full text description, can be null

content - - byte array with content of attachment

createAttachment

public Attachment createAttachment(String attachmentType,
                                   String taskId,
                                   String processInstanceId,
                                   String attachmentName,
                                   String attachmentDescription,
                                   String url)

Description copied from interface: TaskService

Add a new attachment to a task and/or a process instance and use an url as the content please use method in runtime service to operate on process instance Either taskId or processInstanceId has to be provided

Specified by:

createAttachment in interface TaskService

Parameters:

attachmentType - - name of the attachment, can be null

taskId - - task that should have an attachment

processInstanceId - - id of a process to use if task id is null

attachmentName - - name of the attachment, can be null

attachmentDescription - - full text description, can be null

url - - url of the attachment, can be null

getAttachmentContent

public InputStream getAttachmentContent(String attachmentId)

Description copied from interface: TaskService

Retrieve stream content of a particular attachment

Specified by:

getAttachmentContent in interface TaskService

getTaskAttachmentContent

public InputStream getTaskAttachmentContent(String taskId,
                                            String attachmentId)

Description copied from interface: TaskService

Retrieve stream content of a particular attachment to the given task id and attachment id

Specified by:

getTaskAttachmentContent in interface TaskService

deleteAttachment

public void deleteAttachment(String attachmentId)

Description copied from interface: TaskService

Delete an attachment

Specified by:

deleteAttachment in interface TaskService

deleteTaskAttachment

public void deleteTaskAttachment(String taskId,
                                 String attachmentId)

Description copied from interface: TaskService

Delete an attachment to the given task id and attachment id

Specified by:

deleteTaskAttachment in interface TaskService

getAttachment

public Attachment getAttachment(String attachmentId)

Description copied from interface: TaskService

Retrieve a particular attachment

Specified by:

getAttachment in interface TaskService

getTaskAttachment

public Attachment getTaskAttachment(String taskId,
                                    String attachmentId)

Description copied from interface: TaskService

Retrieve a particular attachment to the given task id and attachment id

Specified by:

getTaskAttachment in interface TaskService

getTaskAttachments

public List<Attachment> getTaskAttachments(String taskId)

Description copied from interface: TaskService

The list of attachments associated to a task

Specified by:

getTaskAttachments in interface TaskService

getProcessInstanceAttachments

public List<Attachment> getProcessInstanceAttachments(String processInstanceId)

Description copied from interface: TaskService

The list of attachments associated to a process instance

Specified by:

getProcessInstanceAttachments in interface TaskService

saveAttachment

public void saveAttachment(Attachment attachment)

Description copied from interface: TaskService

Update the name and decription of an attachment

Specified by:

saveAttachment in interface TaskService

getSubTasks

public List<Task> getSubTasks(String parentTaskId)

Description copied from interface: TaskService

The list of subtasks for this parent task

Specified by:

getSubTasks in interface TaskService

createTaskReport

public TaskReport createTaskReport()

Description copied from interface: TaskService

Instantiate a task report

Specified by:

createTaskReport in interface TaskService

handleBpmnError

public void handleBpmnError(String taskId,
                            String errorCode)

Description copied from interface: TaskService

Signals that a business error appears, which should be handled by the process engine.

Specified by:

handleBpmnError in interface TaskService

Parameters:

taskId - the id of an existing active task

errorCode - the error code of the corresponding bmpn error

handleBpmnError

public void handleBpmnError(String taskId,
                            String errorCode,
                            String errorMessage)

Specified by:

handleBpmnError in interface TaskService

Parameters:

taskId - the id of an existing active task

errorCode - the error code of the corresponding bmpn error

errorMessage - the error message of the corresponding bmpn error

See Also:

TaskService.handleBpmnError(String, String)

handleBpmnError

public void handleBpmnError(String taskId,
                            String errorCode,
                            String errorMessage,
                            Map<String,Object> variables)

Specified by:

handleBpmnError in interface TaskService

Parameters:

taskId - the id of an existing active task

errorCode - the error code of the corresponding bmpn error

errorMessage - the error message of the corresponding bmpn error

variables - the variables to pass to the execution

See Also:

TaskService.handleBpmnError(String, String)

handleEscalation

public void handleEscalation(String taskId,
                             String escalationCode)

Description copied from interface: TaskService

Signals that an escalation appears, which should be handled by the process engine.

Specified by:

handleEscalation in interface TaskService

Parameters:

taskId - the id of an existing active task

escalationCode - the escalation code of the corresponding escalation

handleEscalation

public void handleEscalation(String taskId,
                             String escalationCode,
                             Map<String,Object> variables)

Description copied from interface: TaskService

Signals that an escalation appears, which should be handled by the process engine.

Specified by:

handleEscalation in interface TaskService

Parameters:

taskId - the id of an existing active task

escalationCode - the escalation code of the corresponding escalation

variables - the variables to pass to the execution