Package org.camunda.bpm.engine.impl.core.variable.mapping.value

Class ConstantValueProvider

java.lang.Object

org.camunda.bpm.engine.impl.core.variable.mapping.value.ConstantValueProvider

All Implemented Interfaces:

ParameterValueProvider

public class ConstantValueProvider
extends Object
implements ParameterValueProvider

A constant parameter value.

Author:

Daniel Meyer

Field Summary

Fields

Modifier and Type	Field	Description
protected Object	value

Constructor Summary

Constructors

Constructor	Description
ConstantValueProvider(Object value)

Method Summary

Modifier and Type	Method	Description
Object	getValue(VariableScope scope)
boolean	isDynamic()
void	setValue(Object value)

Methods inherited from class java.lang.Object

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

Field Details

value

protected Object value

Constructor Details

ConstantValueProvider

public ConstantValueProvider(Object value)

Method Details

getValue

public Object getValue(VariableScope scope)

Specified by:

getValue in interface ParameterValueProvider

Parameters:

scope - the scope in which the value is to be resolved.

Returns:

the value

setValue

public void setValue(Object value)

isDynamic

public boolean isDynamic()

Specified by:

isDynamic in interface ParameterValueProvider

Returns:

true if the value provider:

• Can return a different value depending on the passed variable scope
• May uses external data for its resolution
• May have side effects

If true, a caller of ParameterValueProvider.getValue(VariableScope) can assume that:

• passing an empty variable scope returns the same value as passing any other variable scope
• Calling ParameterValueProvider.getValue(VariableScope) multiple times always returns the same value
• Calling ParameterValueProvider.getValue(VariableScope) does not have side effects