Class NullValueProvider
- java.lang.Object
-
- org.camunda.bpm.engine.impl.core.variable.mapping.value.NullValueProvider
-
- All Implemented Interfaces:
ParameterValueProvider
public class NullValueProvider extends java.lang.Object implements ParameterValueProvider
- Author:
- Daniel Meyer
-
-
Constructor Summary
Constructors Constructor Description NullValueProvider()
-
Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description java.lang.Object
getValue(VariableScope variableScope)
boolean
isDynamic()
-
-
-
Method Detail
-
getValue
public java.lang.Object getValue(VariableScope variableScope)
- Specified by:
getValue
in interfaceParameterValueProvider
- Parameters:
variableScope
- the scope in which the value is to be resolved.- Returns:
- the value
-
isDynamic
public boolean isDynamic()
- Specified by:
isDynamic
in interfaceParameterValueProvider
- 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
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
-
-