org.apache.camel.model
Class ExpressionNode

java.lang.Object
  org.apache.camel.model.OptionalIdentifiedDefinition<Type>
      org.apache.camel.model.ProcessorDefinition<ExpressionNode>
          org.apache.camel.model.ExpressionNode

All Implemented Interfaces:

Block, NamedNode

Direct Known Subclasses:

DelayDefinition, FilterDefinition, IdempotentConsumerDefinition, LoopDefinition, NoOutputExpressionNode, SplitDefinition, ThrottleDefinition, WhenDefinition

public class ExpressionNode
extends ProcessorDefinition<ExpressionNode>

A base class for nodes which contain an expression and a number of outputs

Version:

Field Summary

Fields inherited from class org.apache.camel.model.ProcessorDefinition

inheritErrorHandler, log

Constructor Summary

ExpressionNode()

ExpressionNode(Expression expression)

ExpressionNode(ExpressionDefinition expression)

ExpressionNode(Predicate predicate)

Method Summary

protected void	configureChild(ProcessorDefinition<?> output) Strategy for children to do any custom configuration
protected FilterProcessor	createFilterProcessor(RouteContext routeContext) Creates the FilterProcessor from the expression node.
protected Predicate	createPredicate(RouteContext routeContext) Creates the Predicate from the expression node.
ExpressionDefinition	getExpression()
String	getLabel() Returns a label to describe this node such as the expression if some kind of expression node
List<ProcessorDefinition<?>>	getOutputs()
String	getShortName() Returns a short name for this node which can be useful for ID generation or referring to related resources like images
boolean	isOutputSupported()
protected void	preCreateProcessor() Strategy to execute any custom logic before the Processor is created.
void	setExpression(ExpressionDefinition expression)
void	setOutputs(List<ProcessorDefinition<?>> outputs)

Methods inherited from class org.apache.camel.model.ProcessorDefinition

addInterceptStrategies, addInterceptStrategy, addOutput, addRoutes, aggregate, aggregate, aggregate, aggregate, aop, attribute, bean, bean, bean, bean, beanRef, beanRef, choice, clearOutput, convertBodyTo, convertBodyTo, createChannel, createChildProcessor, createCompositeProcessor, createOutputsProcessor, createOutputsProcessor, createProcessor, delay, delay, delay, doTry, dynamicRouter, dynamicRouter, end, endChoice, endDoTry, endParent, enrich, enrich, enrichRef, filter, filter, filter, filter, getInterceptStrategies, getNodeFactory, getOtherAttributes, getParent, id, idempotentConsumer, idempotentConsumer, idempotentConsumer, inheritErrorHandler, inOnly, inOnly, inOnly, inOnly, inOnly, inOnly, inOut, inOut, inOut, inOut, inOut, inOut, isAbstract, isInheritErrorHandler, loadBalance, loadBalance, log, log, log, log, loop, loop, loop, makeProcessor, markRollbackOnly, markRollbackOnlyLast, marshal, marshal, marshal, marshal, multicast, multicast, multicast, onCompletion, onException, onException, pipeline, pipeline, pipeline, pipeline, placeholder, policy, policy, pollEnrich, pollEnrich, pollEnrich, pollEnrich, pollEnrich, pollEnrich, pollEnrichRef, process, processRef, recipientList, recipientList, recipientList, removeFaultHeader, removeHeader, removeHeaders, removeHeaders, removeProperty, resequence, resequence, resolveKnownConstantFields, resolvePropertyPlaceholders, rollback, rollback, routeId, routingSlip, routingSlip, routingSlip, routingSlip, routingSlip, routingSlip, routingSlip, sample, sample, sample, setBody, setBody, setExchangePattern, setFaultBody, setFaultHeader, setHeader, setHeader, setInheritErrorHandler, setNodeFactory, setOtherAttributes, setOutHeader, setOutHeader, setParent, setProperty, setProperty, sort, sort, sort, split, split, split, stop, threads, threads, threads, threads, throttle, throttle, throwException, to, to, to, to, to, to, to, to, to, to, toF, transacted, transacted, transform, transform, unmarshal, unmarshal, unmarshal, unmarshal, validate, validate, validate, wireTap, wireTap, wireTap, wireTap, wireTap, wireTap, wireTap, wrapChannel, wrapInErrorHandler, wrapProcessor

Methods inherited from class org.apache.camel.model.OptionalIdentifiedDefinition

description, getDescription, getDescriptionText, getId, hasCustomIdAssigned, idOrCreate, setDescription, setId

Methods inherited from class java.lang.Object

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

Constructor Detail

ExpressionNode

public ExpressionNode()

ExpressionNode

public ExpressionNode(ExpressionDefinition expression)

ExpressionNode

public ExpressionNode(Expression expression)

ExpressionNode

public ExpressionNode(Predicate predicate)

Method Detail

getShortName

public String getShortName()

Description copied from class: OptionalIdentifiedDefinition

Returns a short name for this node which can be useful for ID generation or referring to related resources like images

Specified by:

getShortName in interface NamedNode

Overrides:

getShortName in class OptionalIdentifiedDefinition<ExpressionNode>

Returns:

defaults to "node" but derived nodes should overload this to provide a unique name

getExpression

public ExpressionDefinition getExpression()

setExpression

@Required
public void setExpression(ExpressionDefinition expression)

getOutputs

public List<ProcessorDefinition<?>> getOutputs()

Specified by:

getOutputs in class ProcessorDefinition<ExpressionNode>

setOutputs

public void setOutputs(List<ProcessorDefinition<?>> outputs)

isOutputSupported

public boolean isOutputSupported()

Specified by:

isOutputSupported in class ProcessorDefinition<ExpressionNode>

getLabel

public String getLabel()

Description copied from class: ProcessorDefinition

Returns a label to describe this node such as the expression if some kind of expression node

Overrides:

getLabel in class ProcessorDefinition<ExpressionNode>

createFilterProcessor

protected FilterProcessor createFilterProcessor(RouteContext routeContext)
                                         throws Exception

Creates the FilterProcessor from the expression node.

Parameters:

routeContext - the route context

Returns:

the created FilterProcessor

Throws:

Exception - is thrown if error creating the processor

createPredicate

protected Predicate createPredicate(RouteContext routeContext)

Creates the Predicate from the expression node.

Parameters:

routeContext - the route context

Returns:

the created predicate

configureChild

protected void configureChild(ProcessorDefinition<?> output)

Description copied from class: ProcessorDefinition

Strategy for children to do any custom configuration

Overrides:

configureChild in class ProcessorDefinition<ExpressionNode>

Parameters:

output - the child to be added as output to this

preCreateProcessor

protected void preCreateProcessor()

Description copied from class: ProcessorDefinition

Strategy to execute any custom logic before the Processor is created.

Overrides:

preCreateProcessor in class ProcessorDefinition<ExpressionNode>