com.gridsystems.nextgrid.api.pom
Class IfThenElseProcessImpl

java.lang.Object
  com.gridsystems.nextgrid.api.pom.PemHelper
      com.gridsystems.nextgrid.api.pom.ProcessImpl
          com.gridsystems.nextgrid.api.pom.ControlProcessImpl
              com.gridsystems.nextgrid.api.pom.IfThenElseProcessImpl

All Implemented Interfaces:

Enactable, WithExpression, java.io.Serializable, java.lang.Cloneable, nextgrid.api.pom.ControlProcess, nextgrid.api.pom.IfThenElseProcess, nextgrid.api.pom.Process

public final class IfThenElseProcessImpl
extends ControlProcessImpl
implements nextgrid.api.pom.IfThenElseProcess, WithExpression

Type description.

Author:

Rodrigo Ruiz

See Also:

Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from class com.gridsystems.nextgrid.api.pom.ProcessImpl

ProcessImpl.ValidationType

Field Summary

Fields inherited from class com.gridsystems.nextgrid.api.pom.ProcessImpl

DFA_INITIAL_STATE, ENACTOR_LOG

Constructor Summary

IfThenElseProcessImpl()
Creates a new instance.

Method Summary

protected void	doReset() Performs specific reset actions in each subclass.
protected void	doValidate(ProcessImpl.ValidationType when) Performs any validation action needed for the process implementation.
nextgrid.api.pom.Process	getElse() Gets the process in the "else" branch.
nextgrid.api.pom.Expression	getExpression() Gets the expr value.
nextgrid.api.pom.Process	getThen() Gets the process in the "then" branch.
void	run(ProcessContext ctx) Performs the actual enaction of a process.
nextgrid.api.pom.Process	setElse(nextgrid.api.pom.Process process) Sets the process in the "else" branch.
void	setExpression(nextgrid.api.pom.Expression expression) Sets the expr value.
nextgrid.api.pom.Process	setThen(nextgrid.api.pom.Process process) Sets the process in the "then" branch.
java.lang.String	toString()

Methods inherited from class com.gridsystems.nextgrid.api.pom.ControlProcessImpl

addChildren, addChildren, copy, discover, doEvaluate, findProcessById, getChildCount, getChildren, getChildren, getLocalVar, getLocalVars, isMemoizeActive, prioritise, removeChild, removeChild, resetChildren, setChildren, setChildren, setLocalVar, setMemoizeActive, trim

Methods inherited from class com.gridsystems.nextgrid.api.pom.ProcessImpl

attachListeners, enact, evaluate, evaluate, findRoot, getAttribute, getAttribute, getAttribute, getAttributes, getDescription, getId, getInput, getInputs, getInputs, getInputType, getName, getOutput, getOutputs, getOutputs, getOutputType, getParent, getState, getUsedInputNames, getUsedOutputNames, invalidate, isEvaluated, isLazy, isValidated, prioritise, putInput, putOutput, removeInput, removeOutput, reset, setAttribute, setAttribute, setDescription, setEvaluated, setId, setLazy, setName, setParent, setState, unuseInput, unuseOutput, useInput, useOutput, validate, waitForInputs

Methods inherited from class com.gridsystems.nextgrid.api.pom.PemHelper

addListener, fireDiscovererSelected, fireDiscoveryFailed, fireDiscoveryFinished, fireDiscoveryStarting, fireEvent, fireProcessEvaluated, fireProcessFailed, fireProcessFailed, fireProcessFinished, fireProcessFinished, fireProcessSelected, fireProcessStarted, removeListener

Methods inherited from class java.lang.Object

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

Methods inherited from interface nextgrid.api.pom.ControlProcess

addChildren, addChildren, getChildCount, getChildren, getChildren, getLocalVar, getLocalVars, isLazy, isMemoizeActive, removeChild, removeChild, setChildren, setChildren, setLazy, setLocalVar, setMemoizeActive, trim

Methods inherited from interface nextgrid.api.pom.Process

addListener, copy, discover, enact, evaluate, findProcessById, findRoot, getAttribute, getAttribute, getAttribute, getAttributes, getDescription, getId, getInput, getInputs, getInputType, getName, getOutput, getOutputs, getOutputType, getParent, getUsedInputNames, getUsedOutputNames, invalidate, isEvaluated, isValidated, prioritise, putInput, putOutput, removeInput, removeListener, removeOutput, reset, setAttribute, setAttribute, setDescription, setId, setName, setParent, unuseInput, unuseOutput, useInput, useOutput, validate

Constructor Detail

IfThenElseProcessImpl

public IfThenElseProcessImpl()

Creates a new instance.

Method Detail

getExpression

public nextgrid.api.pom.Expression getExpression()

Gets the expr value.

Specified by:

getExpression in interface nextgrid.api.pom.IfThenElseProcess

Returns:

The expr

setExpression

public void setExpression(nextgrid.api.pom.Expression expression)

Sets the expr value.

Specified by:

setExpression in interface WithExpression

Specified by:

setExpression in interface nextgrid.api.pom.IfThenElseProcess

Parameters:

expression - The expr to set

getThen

public nextgrid.api.pom.Process getThen()

Gets the process in the "then" branch.

Specified by:

getThen in interface nextgrid.api.pom.IfThenElseProcess

Returns:

The process in the "then" branch

getElse

public nextgrid.api.pom.Process getElse()

Gets the process in the "else" branch.

Specified by:

getElse in interface nextgrid.api.pom.IfThenElseProcess

Returns:

The process in the "else" branch

setThen

public nextgrid.api.pom.Process setThen(nextgrid.api.pom.Process process)

Sets the process in the "then" branch.

Specified by:

setThen in interface nextgrid.api.pom.IfThenElseProcess

Parameters:

process - The process in the "then" branch

Returns:

The previous process in the "then" branch

setElse

public nextgrid.api.pom.Process setElse(nextgrid.api.pom.Process process)

Sets the process in the "else" branch.

Specified by:

setElse in interface nextgrid.api.pom.IfThenElseProcess

Parameters:

process - The process in the "else" branch

Returns:

The previous process in the "else" branch

doValidate

protected void doValidate(ProcessImpl.ValidationType when)
                   throws nextgrid.api.pom.ProcessException

Performs any validation action needed for the process implementation.

Specified by:

doValidate in class ProcessImpl

Parameters:

when - Specifies when this validation is being invoked

Throws:

nextgrid.api.pom.ProcessException - If the validation fails

run

public void run(ProcessContext ctx)
         throws nextgrid.api.pom.ProcessException,
                java.lang.InterruptedException

Performs the actual enaction of a process.

The instance must take into account possible errors, like service unavailability, or execution errors. As long as there are more "valid" candidates for the process, errors should not be propagated to the parent, and the next candidate should be selected and enacted.

A ProcessException as a result of this call means that this process is unable to correctly finish its execution, and that the parent must do something to fix the problem.

Specified by:

run in interface Enactable

Parameters:

ctx - A process context

Throws:

nextgrid.api.pom.ProcessException - If an unrecoverable local error occurs

java.lang.InterruptedException - If the thread is interrupted

doReset

protected void doReset()

Performs specific reset actions in each subclass.

Specified by:

doReset in class ProcessImpl

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object