Package org.apache.camel.model

Class LoopDefinition

java.lang.Object

org.apache.camel.model.OptionalIdentifiedDefinition<ExpressionNode>

org.apache.camel.model.ProcessorDefinition<ExpressionNode>

org.apache.camel.model.ExpressionNode

org.apache.camel.model.OutputExpressionNode

org.apache.camel.model.LoopDefinition

All Implemented Interfaces:

org.apache.camel.CamelContextAware, org.apache.camel.LineNumberAware, Block, CopyableDefinition<ProcessorDefinition>, DisabledAwareDefinition, HasExpressionType, OutputNode, org.apache.camel.NamedNode, org.apache.camel.spi.HasCamelContext, org.apache.camel.spi.HasId, org.apache.camel.spi.IdAware

@Metadata(label="eip,routing")
public class LoopDefinition
extends OutputExpressionNode

Processes a message multiple times

Field Summary

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

disabled

Constructor Summary

Constructors

Modifier	Constructor	Description
	LoopDefinition()
	LoopDefinition(org.apache.camel.Expression expression)
	LoopDefinition(ExpressionDefinition expression)
protected	LoopDefinition(LoopDefinition source)
	LoopDefinition(org.apache.camel.Predicate predicate)

Method Summary

Modifier and Type	Method	Description
LoopDefinition	breakOnShutdown()
LoopDefinition	copy()	Enables copy mode so a copy of the input Exchange is used for each iteration.
LoopDefinition	copyDefinition()	Makes a copy of this definition.
String	getBreakOnShutdown()
String	getCopy()
String	getDoWhile()
String	getLabel()	Returns a label to describe this node such as the expression if some kind of expression node
String	getOnPrepare()
org.apache.camel.Processor	getOnPrepareProcessor()
String	getShortName()
LoopDefinition	onPrepare(String onPrepare)	Uses the Processor when preparing the Exchange for each loop iteration.
LoopDefinition	onPrepare(org.apache.camel.Processor onPrepare)	Uses the Processor when preparing the Exchange for each loop iteration.
void	setBreakOnShutdown(String breakOnShutdown)	If the breakOnShutdown attribute is true, then the loop will not iterate until it reaches the end when Camel is shut down.
void	setCopy(String copy)	If the copy attribute is true, a copy of the input Exchange is used for each iteration.
void	setDoWhile(String doWhile)	Enables the while loop that loops until the predicate evaluates to false or null.
void	setExpression(ExpressionDefinition expression)	Expression to define how many times we should loop.
void	setOnPrepare(String onPrepare)
String	toString()

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

getOutputs, setOutputs

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

configureChild, getExpression, getExpressionType, preCreateProcessor, setExpression, setExpressionType

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

addInterceptStrategy, addOutput, aggregate, aggregate, aggregate, aggregate, bean, bean, bean, bean, bean, bean, bean, bean, bean, bean, bean, choice, circuitBreaker, claimCheck, claimCheck, claimCheck, claimCheck, clearOutput, convertBodyTo, convertBodyTo, convertBodyTo, convertHeaderTo, convertHeaderTo, convertHeaderTo, convertHeaderTo, convertVariableTo, convertVariableTo, convertVariableTo, convertVariableTo, delay, delay, delay, disabled, disabled, disabled, doTry, dynamicRouter, dynamicRouter, end, endChoice, endCircuitBreaker, endDoCatch, endDoTry, endParent, enrich, enrich, enrich, enrich, enrich, enrich, enrich, enrich, enrich, enrichWith, enrichWith, enrichWith, enrichWith, enrichWith, enrichWith, filter, filter, filter, filter, getDisabled, getIndex, getInheritErrorHandler, getInterceptStrategies, getParent, getRouteConfiguration, id, idempotentConsumer, idempotentConsumer, idempotentConsumer, isAbstract, isTopLevelOnly, isWrappingEntireOutput, kamelet, loadBalance, loadBalance, log, log, log, log, log, log, log, log, loop, loop, loop, loopDoWhile, loopDoWhile, markRollbackOnly, markRollbackOnlyLast, marshal, marshal, marshal, marshal, multicast, multicast, multicast, nodePrefixId, onCompletion, onException, onException, onException, onException, pausable, pausable, pausable, pausable, pipeline, pipeline, pipeline, policy, policy, poll, poll, poll, poll, poll, poll, pollEnrich, pollEnrich, pollEnrich, pollEnrich, pollEnrich, pollEnrich, pollEnrich, pollEnrich, pollEnrich, pollEnrich, pollEnrich, pollEnrich, pollEnrich, pollEnrich, pollEnrich, pollEnrich, pollEnrich, pollEnrichWith, pollEnrichWith, pollEnrichWith, pollEnrichWith, pollEnrichWith, pollEnrichWith, pollV, process, process, process, recipientList, recipientList, recipientList, recipientList, removeHeader, removeHeaders, removeHeaders, removeProperties, removeProperties, removeProperty, removeVariable, resequence, resequence, resumable, resumable, resumable, rollback, rollback, routeDescription, routeGroup, routeId, routingSlip, routingSlip, routingSlip, saga, sample, sample, sample, sample, script, script, serviceCall, serviceCall, serviceCall, setBody, setBody, setBody, setDisabled, setExchangePattern, setExchangePattern, setHeader, setHeader, setHeader, setHeaders, setInheritErrorHandler, setParent, setProperty, setProperty, setProperty, setRouteConfiguration, setVariable, setVariable, setVariable, setVariables, sort, sort, sort, split, split, split, split, startupOrder, step, step, stop, threads, threads, threads, threads, throttle, throttle, throttle, throttle, throttle, throwException, throwException, to, to, to, to, to, to, to, to, to, to, to, to, toD, toD, toD, toD, toD, toD, toD, toD, toD, toF, tokenize, toV, transacted, transacted, transform, transform, transform, transform, unmarshal, unmarshal, unmarshal, unmarshal, unmarshal, unmarshal, unmarshal, validate, validate, validate, wireTap, wireTap, wireTap, wireTap, wireTap

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

description, getCamelContext, getCustomId, getDescription, getDescriptionText, getId, getLineNumber, getLocation, getNodePrefixId, hasCustomIdAssigned, idOrCreate, setCamelContext, setCustomId, setDescription, setGeneratedId, setId, setLineNumber, setLocation

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.camel.NamedNode

acceptDebugger

Constructor Details

LoopDefinition

public LoopDefinition()

LoopDefinition

protected LoopDefinition(LoopDefinition source)

LoopDefinition

public LoopDefinition(org.apache.camel.Expression expression)

LoopDefinition

public LoopDefinition(org.apache.camel.Predicate predicate)

LoopDefinition

public LoopDefinition(ExpressionDefinition expression)

Method Details

copyDefinition

public LoopDefinition copyDefinition()

Description copied from interface: CopyableDefinition

Makes a copy of this definition.

getOnPrepareProcessor

public org.apache.camel.Processor getOnPrepareProcessor()

copy

public LoopDefinition copy()

Enables copy mode so a copy of the input Exchange is used for each iteration.

onPrepare

public LoopDefinition onPrepare(org.apache.camel.Processor onPrepare)

Uses the Processor when preparing the Exchange for each loop iteration. This can be used to deep-clone messages, or any custom logic needed before the looping executes.

Parameters:

onPrepare - reference to the processor to lookup in the Registry

Returns:

the builder

onPrepare

public LoopDefinition onPrepare(String onPrepare)

Uses the Processor when preparing the Exchange for each loop iteration. This can be used to deep-clone messages, or any custom logic needed before the looping executes.

Parameters:

onPrepare - reference to the processor to lookup in the Registry

Returns:

the builder

getCopy

public String getCopy()

getDoWhile

public String getDoWhile()

setDoWhile

public void setDoWhile(String doWhile)

Enables the while loop that loops until the predicate evaluates to false or null.

setCopy

public void setCopy(String copy)

If the copy attribute is true, a copy of the input Exchange is used for each iteration. That means each iteration will start from a copy of the same message.

By default loop will loop the same exchange all over, so each iteration may have different message content.

breakOnShutdown

public LoopDefinition breakOnShutdown()

setBreakOnShutdown

public void setBreakOnShutdown(String breakOnShutdown)

If the breakOnShutdown attribute is true, then the loop will not iterate until it reaches the end when Camel is shut down.

getBreakOnShutdown

public String getBreakOnShutdown()

getOnPrepare

public String getOnPrepare()

setOnPrepare

public void setOnPrepare(String onPrepare)

toString

public String toString()

Overrides:

toString in class Object

getShortName

public String getShortName()

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

Specified by:

getLabel in interface org.apache.camel.NamedNode

Overrides:

getLabel in class ExpressionNode

setExpression

public void setExpression(ExpressionDefinition expression)

Expression to define how many times we should loop. Notice the expression is only evaluated once, and should return a number as how many times to loop. A value of zero or negative means no looping. The loop is like a for-loop fashion, if you want a while loop, then the dynamic router may be a better choice.

Overrides:

setExpression in class ExpressionNode