Package org.springframework.integration.util

Class AbstractExpressionEvaluator

java.lang.Object

org.springframework.integration.util.AbstractExpressionEvaluator

All Implemented Interfaces:

Aware, BeanFactoryAware, InitializingBean

Direct Known Subclasses:

AbstractMessageProcessor, AbstractMessageSource, CollectionArgumentResolver, DefaultFileNameGenerator, ExpressionEvaluatingMessageListProcessor, ExpressionEvaluatingReleaseStrategy, ExpressionEvaluatingSqlParameterSourceFactory, MapArgumentResolver, MessagingMethodInvokerHelper, MethodInvokingMessageListProcessor, PayloadExpressionArgumentResolver, PayloadsArgumentResolver

public abstract class AbstractExpressionEvaluator
extends Object
implements BeanFactoryAware, InitializingBean

Since:

2.0

Author:

Mark Fisher, Dave Syer, Oleg Zhurakousky, Artem Bilan, Gary Russell

Field Summary

Fields

Modifier and Type	Field	Description
protected static ExpressionParser	EXPRESSION_PARSER
protected LogAccessor	logger

Constructor Summary

Constructors

Constructor	Description
AbstractExpressionEvaluator()

Method Summary

Modifier and Type	Method	Description
void	afterPropertiesSet()
protected Object	evaluateExpression(String expression, Object input)
protected <T> T	evaluateExpression(String expression, Object input, Class<T> expectedType)
protected Object	evaluateExpression(Expression expression)
protected <T> T	evaluateExpression(Expression expression, Class<T> expectedType)
protected Object	evaluateExpression(Expression expression, Object input)
protected <T> T	evaluateExpression(Expression expression, Object input, Class<T> expectedType)
protected <T> T	evaluateExpression(Expression expression, Message<?> message, Class<T> expectedType)
protected BeanFactory	getBeanFactory()
protected StandardEvaluationContext	getEvaluationContext()
protected StandardEvaluationContext	getEvaluationContext(boolean beanFactoryRequired)	Emits a WARN log if the beanFactory field is null, unless the argument is false.
protected MessageBuilderFactory	getMessageBuilderFactory()
protected void	onInit()
void	setBeanFactory(BeanFactory beanFactory)	Specify a BeanFactory in order to enable resolution via @beanName in the expression.
void	setConversionService(ConversionService conversionService)

Methods inherited from class java.lang.Object

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

Field Details

logger

protected final LogAccessor logger

EXPRESSION_PARSER

protected static final ExpressionParser EXPRESSION_PARSER

Constructor Details

AbstractExpressionEvaluator

public AbstractExpressionEvaluator()

Method Details

setBeanFactory

public void setBeanFactory(BeanFactory beanFactory)

Specify a BeanFactory in order to enable resolution via @beanName in the expression.

Specified by:

setBeanFactory in interface BeanFactoryAware

getBeanFactory

protected BeanFactory getBeanFactory()

setConversionService

public void setConversionService(ConversionService conversionService)

getMessageBuilderFactory

protected MessageBuilderFactory getMessageBuilderFactory()

afterPropertiesSet

public final void afterPropertiesSet()

Specified by:

afterPropertiesSet in interface InitializingBean

getEvaluationContext

protected StandardEvaluationContext getEvaluationContext()

getEvaluationContext

protected final StandardEvaluationContext getEvaluationContext(boolean beanFactoryRequired)

Emits a WARN log if the beanFactory field is null, unless the argument is false.

Parameters:

beanFactoryRequired - set to false to suppress the warning.

Returns:

The evaluation context.

evaluateExpression

@Nullable protected <T> T evaluateExpression(Expression expression, Message<?> message, @Nullable Class<T> expectedType)

evaluateExpression

@Nullable protected Object evaluateExpression(String expression, Object input)

evaluateExpression

@Nullable protected <T> T evaluateExpression(String expression, Object input, @Nullable Class<T> expectedType)

evaluateExpression

@Nullable protected Object evaluateExpression(Expression expression, Object input)

evaluateExpression

@Nullable protected <T> T evaluateExpression(Expression expression, @Nullable Class<T> expectedType)

evaluateExpression

@Nullable protected Object evaluateExpression(Expression expression)

evaluateExpression

@Nullable protected <T> T evaluateExpression(Expression expression, Object input, @Nullable Class<T> expectedType)

onInit

protected void onInit()