org.camunda.bpm.engine.variable.impl.context

Class SingleVariableContext

java.lang.Object

org.camunda.bpm.engine.variable.impl.context.SingleVariableContext

All Implemented Interfaces:

VariableContext

public class SingleVariableContext
extends Object
implements VariableContext

An VariableContext allowing to resolve a single variable only.

Author:

Daniel Meyer

Field Summary

Fields

Modifier and Type	Field and Description
protected String	name
protected TypedValue	typedValue

Constructor Summary

Constructors

Constructor and Description
SingleVariableContext(String name, TypedValue typedValue)

Method Summary

Modifier and Type	Method and Description
boolean	containsVariable(String name) Checks whether a variable with the given name is resolve through this context.
Set<String>	keySet()
TypedValue	resolve(String variableName) Resolve a value in this context.
static SingleVariableContext	singleVariable(String name, TypedValue value)

Methods inherited from class java.lang.Object

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

Field Detail

typedValue

protected final TypedValue typedValue

name

protected String name

Constructor Detail

SingleVariableContext

public SingleVariableContext(String name,
                             TypedValue typedValue)

Method Detail

resolve

public TypedValue resolve(String variableName)

Description copied from interface: VariableContext

Resolve a value in this context.

Specified by:

resolve in interface VariableContext

Parameters:

variableName - the name of the variable to resolve.

Returns:

the value of the variable or null in case the variable does not exist.

containsVariable

public boolean containsVariable(String name)

Description copied from interface: VariableContext

Checks whether a variable with the given name is resolve through this context.

Specified by:

containsVariable in interface VariableContext

Parameters:

name - the name of the variable to check

Returns:

true if the variable is resolve.

keySet

public Set<String> keySet()

Specified by:

keySet in interface VariableContext

Returns:

a set of all variable names resolvable through this Context.

singleVariable

public static SingleVariableContext singleVariable(String name,
                                                   TypedValue value)