Package org.springframework.statemachine.guard

Class SpelExpressionGuard<S,E>

java.lang.Object

org.springframework.statemachine.guard.SpelExpressionGuard<S,E>

All Implemented Interfaces:

Guard<S,E>

public class SpelExpressionGuard<S,E>
extends Object
implements Guard<S,E>

Guard which uses Spring SpEL expression for condition evaluation.

Author:

Janne Valkealahti

Constructor Summary

Constructors

Constructor	Description
SpelExpressionGuard(org.springframework.expression.Expression expression)	Instantiates a new spel expression guard.

Method Summary

Modifier and Type	Method	Description
boolean	evaluate(StateContext<S,E> context)	Evaluate a guard condition.

Methods inherited from class java.lang.Object

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

Constructor Details

SpelExpressionGuard

public SpelExpressionGuard(org.springframework.expression.Expression expression)

Instantiates a new spel expression guard.

Parameters:

expression - the expression

Method Details

evaluate

public boolean evaluate(StateContext<S,E> context)

Description copied from interface: Guard

Evaluate a guard condition.

Specified by:

evaluate in interface Guard<S,E>

Parameters:

context - the state context

Returns:

true, if guard evaluation is successful, false otherwise.