Package org.apache.camel.support

Class ExpressionAdapter

java.lang.Object

org.apache.camel.support.ExpressionSupport

org.apache.camel.support.ExpressionAdapter

All Implemented Interfaces:

org.apache.camel.Expression, org.apache.camel.Predicate

Direct Known Subclasses:

ConstantExpressionAdapter, TokenPairExpressionIterator, TokenXMLExpressionIterator

public abstract class ExpressionAdapter
extends ExpressionSupport

A helper class for developers wishing to implement an Expression using Java code with a minimum amount of code to write so that the developer only needs to implement one of the evaluate(org.apache.camel.Exchange, Class) or ExpressionSupport.evaluate(org.apache.camel.Exchange) methods.

Constructor Summary

Constructors

Constructor	Description
ExpressionAdapter()

Method Summary

Modifier and Type	Method	Description
protected String	assertionFailureMessage(org.apache.camel.Exchange exchange)
<T> T	evaluate(org.apache.camel.Exchange exchange, Class<T> type)
void	init(org.apache.camel.CamelContext context)

Methods inherited from class org.apache.camel.support.ExpressionSupport

assertMatches, evaluate, matches

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.camel.Predicate

initPredicate

Constructor Detail

ExpressionAdapter

public ExpressionAdapter()

Method Detail

init

public void init(org.apache.camel.CamelContext context)

Specified by:

init in interface org.apache.camel.Expression

Specified by:

init in interface org.apache.camel.Predicate

Overrides:

init in class ExpressionSupport

assertionFailureMessage

protected String assertionFailureMessage(org.apache.camel.Exchange exchange)

Specified by:

assertionFailureMessage in class ExpressionSupport

evaluate

public <T> T evaluate(org.apache.camel.Exchange exchange,
                      Class<T> type)