Top Description Fields Constructors Methods

org.springframework.context.event

pack-priv Class EventExpressionEvaluator

Class Inheritance

extends CachedExpressionEvaluator

java.lang.Object
org.springframework.context.expression.CachedExpressionEvaluator
org.springframework.context.event.EventExpressionEvaluator

Imports

java.lang.reflect.Method, java.util.Map, java.util.concurrent.ConcurrentHashMap, org.springframework.context.ApplicationEvent, org.springframework.context.expression.AnnotatedElementKey, .CachedExpressionEvaluator, .MethodBasedEvaluationContext, org.springframework.expression.EvaluationContext, .Expression, org.springframework.expression.spel.support.StandardEvaluationContext

Utility class for handling SpEL expression parsing for application events.

Meant to be used as a reusable, thread-safe component.

Author: Stephane Nicoll
Since: 4.2
See Also: CachedExpressionEvaluator

Field Summary

Modifier and Type	Field and Description
private final Map<CachedExpressionEvaluator.ExpressionKey, Expression>	conditionCache
private final StandardEvaluationContext	originalEvaluationContext

Constructor Summary

Access	Constructor and Description
pack-priv	EventExpressionEvaluator(StandardEvaluationContext originalEvaluationContext)

Method Summary

Modifier and Type	Method and Description
public boolean	condition(String conditionExpression, ApplicationEvent event, Method targetMethod, AnnotatedElementKey methodKey, Object[] args) Determine if the condition defined by the specified expression evaluates to `true`.
private EvaluationContext	createEvaluationContext(EventExpressionRootObject rootObject, Method method, Object[] args)

Inherited from org.springframework.context.expression.CachedExpressionEvaluator:: getExpression getParameterNameDiscoverer getParser parseExpression

Field Detail

conditionCache	back to summary
private final Map<CachedExpressionEvaluator.ExpressionKey, Expression> conditionCache

originalEvaluationContext	back to summary
private final StandardEvaluationContext originalEvaluationContext

Constructor Detail

EventExpressionEvaluator	back to summary
pack-priv EventExpressionEvaluator(StandardEvaluationContext originalEvaluationContext)

Method Detail

condition	back to summary
public boolean condition(String conditionExpression, ApplicationEvent event, Method targetMethod, AnnotatedElementKey methodKey, Object[] args) Determine if the condition defined by the specified expression evaluates to `true`.

createEvaluationContext	back to summary
private EvaluationContext createEvaluationContext(EventExpressionRootObject rootObject, Method method, Object[] args)