org.flowable.common.engine.impl.el.function

Class VariableExistsExpressionFunction

java.lang.Object

org.flowable.common.engine.impl.el.function.AbstractFlowableShortHandExpressionFunction

org.flowable.common.engine.impl.el.function.AbstractFlowableVariableExpressionFunction

org.flowable.common.engine.impl.el.function.VariableExistsExpressionFunction

All Implemented Interfaces:

FlowableExpressionEnhancer, FlowableFunctionDelegate, FlowableShortHandExpressionFunction

public class VariableExistsExpressionFunction
extends AbstractFlowableVariableExpressionFunction

Returns whether or not a variable with the given name exists when fetched through the provided variable scope.

Author:

Joram Barrez

Field Summary

Fields inherited from class org.flowable.common.engine.impl.el.function.AbstractFlowableShortHandExpressionFunction

functionName, localName, method, pattern, prefix, replacePattern, variableScopeName

Constructor Summary

Constructors

Constructor and Description
VariableExistsExpressionFunction(String variableScopeName)

Method Summary

Modifier and Type	Method and Description
static boolean	exists(VariableScope variableScope, String variableName)
protected boolean	isMultiParameterFunction()

Methods inherited from class org.flowable.common.engine.impl.el.function.AbstractFlowableVariableExpressionFunction

getFinalFunctionPrefix, getFunctionPrefixOptions, getVariableValue, prefix, valuesAreNumbers

Methods inherited from class org.flowable.common.engine.impl.el.function.AbstractFlowableShortHandExpressionFunction

buildOrWordGroup, enhance, findMethod, functionMethod, isNoParameterMethod, localName

Methods inherited from class java.lang.Object

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

Constructor Detail

VariableExistsExpressionFunction

public VariableExistsExpressionFunction(String variableScopeName)

Method Detail

isMultiParameterFunction

protected boolean isMultiParameterFunction()

Overrides:

isMultiParameterFunction in class AbstractFlowableVariableExpressionFunction

exists

public static boolean exists(VariableScope variableScope,
                             String variableName)