ExternalTaskQueryBuilder (Camunda Platform Javadocs 7.16.18-ee)

All Known Subinterfaces:

ExternalTaskQueryTopicBuilder

All Known Implementing Classes:

ExternalTaskQueryTopicBuilderImpl
```
public interface ExternalTaskQueryBuilder
```
Author:

Thorben Lindhauer

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`java.util.List<LockedExternalTask>`	`execute()`	Performs the fetching.
`ExternalTaskQueryTopicBuilder`	`topic(java.lang.String topicName, long lockDuration)`	Specifies that tasks of a topic should be fetched and locked for a certain amount of time

- Method Detail
  - topic
```
ExternalTaskQueryTopicBuilder topic(java.lang.String topicName,
                                    long lockDuration)
```
    Specifies that tasks of a topic should be fetched and locked for a certain amount of time
    
    Parameters:
    
    topicName - the name of the topic
    
    lockDuration - the duration in milliseconds for which tasks should be locked; begins at the time of fetching
    
    Returns:
  - execute
```
java.util.List<LockedExternalTask> execute()
```
    Performs the fetching. Locks candidate tasks of the given topics for the specified duration.
    
    Returns:
    
    fetched external tasks that match the topic and that can be successfully locked