Package org.frankframework.pipes

Class ForPipe

java.lang.Object

org.frankframework.core.TransactionAttributes

org.frankframework.pipes.AbstractPipe

org.frankframework.pipes.ForPipe

All Implemented Interfaces:

HasTransactionAttribute, IConfigurable, IConfigurationAware, IForwardTarget, INamedObject, IPipe, IScopeProvider, IWithParameters, EventThrowing, HasStatistics, org.springframework.beans.factory.Aware, org.springframework.context.ApplicationContextAware

@Forward(name="stop",description="exit for loop") @Forward(name="continue",description="continue in for loop")
@ElementType(ITERATOR)
public class ForPipe
extends AbstractPipe

ForPipe is a wrapper to use another pipe a fixed number of times. This can be accomplished by something like:

 		<ForPipe name="forPipe" startAt="0" stopAt="10">
 		 	<Forward name="stop" path="EXIT" />
 		 	<Forward name="continue" path="echoPipe"/>
 		</ForPipe>

 		<EchoPipe name="echoPipe" getInputFromSessionKey="forPipe.iteration">
 		 	<Forward name="success" path="forPipe"/>
 		</EchoPipe>
 

This should call the echoPipe for i=0 until i=10.

Author:

evandongen

Field Summary

Fields inherited from class org.frankframework.pipes.AbstractPipe

parameterNamesMustBeUnique

Fields inherited from class org.frankframework.core.TransactionAttributes

log

Fields inherited from interface org.frankframework.core.IPipe

LONG_DURATION_MONITORING_EVENT, MESSAGE_SIZE_MONITORING_EVENT, PIPE_EXCEPTION_MONITORING_EVENT

Constructor Summary

Constructors

Constructor	Description
ForPipe()

Method Summary

Modifier and Type	Method	Description
void	configure()	configure() is called after the Pipeline is registered at the Adapter.
PipeRunResult	doPipe(Message message, PipeLineSession session)	This is where the action takes place.
int	getStartAt()
Integer	getStopAt()
void	setStartAt(int startAt)	Starts counting at this value.
void	setStopAt(Integer stopAt)	Break from the loop when incrementSessionKey equals this value

Methods inherited from class org.frankframework.pipes.AbstractPipe

addForward, addParameter, consumesSessionVariable, createBean, findForward, getAdapter, getApplicationContext, getChompCharSize, getConfigurationClassLoader, getDurationThreshold, getElementToMove, getElementToMoveChain, getElementToMoveSessionKey, getEmptyInputReplacement, getEventSourceName, getForwards, getGetInputFromFixedValue, getGetInputFromSessionKey, getHideRegex, getLocker, getLogIntermediaryResults, getMaxThreads, getName, getParameterList, getPipeLine, getSecLogSessionKeys, getStoreResultInSessionKey, hasRegisteredForward, isPreserveInput, isRemoveCompactMsgNamespaces, isRestoreMovedElements, isWriteToSecLog, registerEvent, setApplicationContext, setChompCharSize, setDurationThreshold, setElementToMove, setElementToMoveChain, setElementToMoveSessionKey, setEmptyInputReplacement, setEventPublisher, setGetInputFromFixedValue, setGetInputFromSessionKey, setHideRegex, setLocker, setLogIntermediaryResults, setMaxThreads, setName, setPipeLine, setPreserveInput, setRemoveCompactMsgNamespaces, setRestoreMovedElements, setSecLogSessionKeys, setSizeStatistics, setStoreResultInSessionKey, setWriteToSecLog, sizeStatisticsEnabled, start, stop, throwEvent

Methods inherited from class org.frankframework.core.TransactionAttributes

configureTransactionAttributes, getTransactionAttribute, getTransactionTimeout, getTxDef, isTransacted, isTransacted, setTransacted, setTransactionAttribute, setTransactionTimeout

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.frankframework.core.IPipe

throwEvent

Constructor Details

ForPipe

public ForPipe()

Method Details

configure

public void configure()
               throws ConfigurationException

Description copied from class: AbstractPipe

configure() is called after the Pipeline is registered at the Adapter. Purpose of this method is to reduce creating connections to databases etc. in the doPipe() method. As much as possible class-instantiating should take place in the configure() method, to improve performance.

Specified by:

configure in interface IConfigurable

Specified by:

configure in interface IPipe

Overrides:

configure in class AbstractPipe

Throws:

ConfigurationException

doPipe

public PipeRunResult doPipe(Message message,
 PipeLineSession session)
                     throws PipeRunException

Description copied from interface: IPipe

This is where the action takes place. Pipes may only throw a PipeRunException, to be handled by the caller of this object. Implementations must either consume the message, or pass it on to the next Pipe in the PipeRunResult. If the result of the Pipe does not depend on the input, like for the FixedResultPipe, the Pipe can schedule the input to be closed at session exit, by calling Message.closeOnCloseOf(PipeLineSession, String) This allows the previous Pipe to release any resources (e.g. connections) that it might have kept open until the message was consumed. Doing so avoids connections leaking from pools, while it enables efficient streaming processing of data while it is being read from a stream.

Throws:

PipeRunException

setStartAt

public void setStartAt(int startAt)

Starts counting at this value.

Default value

0

setStopAt

public void setStopAt(Integer stopAt)

Break from the loop when incrementSessionKey equals this value

getStartAt

public int getStartAt()

getStopAt

public Integer getStopAt()