org.eclipse.viatra.query.runtime.localsearch.operations.extend

Class IterateOverChildren

java.lang.Object

org.eclipse.viatra.query.runtime.localsearch.operations.extend.ExtendOperation<org.eclipse.emf.ecore.EObject>

org.eclipse.viatra.query.runtime.localsearch.operations.extend.IterateOverChildren

All Implemented Interfaces:

ISearchOperation

public class IterateOverChildren
extends ExtendOperation<org.eclipse.emf.ecore.EObject>

Iterates all child elements of a selected EObjects.

Field Summary

Fields inherited from class org.eclipse.viatra.query.runtime.localsearch.operations.extend.ExtendOperation

it, position

Constructor Summary

Constructors

Constructor and Description
IterateOverChildren(int position, int sourcePosition, boolean transitive)

Method Summary

Modifier and Type	Method and Description
java.util.List<java.lang.Integer>	getVariablePositions()
void	onInitialize(MatchingFrame frame, ISearchContext context) During the execution of the corresponding plan, the onInitialize callback is evaluated before the execution of the operation may begin.
java.lang.String	toString()

Methods inherited from class org.eclipse.viatra.query.runtime.localsearch.operations.extend.ExtendOperation

execute, onBacktrack

Methods inherited from class java.lang.Object

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

Constructor Detail

IterateOverChildren

public IterateOverChildren(int position,
                           int sourcePosition,
                           boolean transitive)

Parameters:

position - the position of the variable storing the child elements

sourcePosition - the position of the variable storing the parent root; must be bound

transitive - if true, child elements are iterated over transitively

Method Detail

onInitialize

public void onInitialize(MatchingFrame frame,
                         ISearchContext context)

Description copied from interface: ISearchOperation

During the execution of the corresponding plan, the onInitialize callback is evaluated before the execution of the operation may begin. Operations may use this method to initialize its internal data structures.

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object

getVariablePositions

public java.util.List<java.lang.Integer> getVariablePositions()

Returns:

the ordered list of the variable numbers that are affected by the search operation