Package tools.refinery.interpreter.localsearch.operations.check

Class CheckConstant

java.lang.Object

tools.refinery.interpreter.localsearch.operations.check.CheckConstant

All Implemented Interfaces:

ISearchOperation

public class CheckConstant
extends Object
implements ISearchOperation

This operation handles constants in search plans by checking if a variable is bound to a certain constant value. Such operations should be executed as early as possible during plan execution.

Nested Class Summary

Nested classes/interfaces inherited from interface tools.refinery.interpreter.localsearch.operations.ISearchOperation

ISearchOperation.ISearchOperationExecutor

Constructor Summary

Constructors

Constructor	Description
CheckConstant(int position, Object value)

Method Summary

Modifier and Type	Method	Description
ISearchOperation.ISearchOperationExecutor	createExecutor()	Initializes a new operation executor for the given operation.
List<Integer>	getVariablePositions()
String	toString()
String	toString(Function<Integer,String> variableMapping)	Creates a string representation of the search operation by replacing the variable numbers according to the parameter function.

Methods inherited from class java.lang.Object

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

Constructor Details

CheckConstant

public CheckConstant(int position,
 Object value)

Method Details

createExecutor

public ISearchOperation.ISearchOperationExecutor createExecutor()

Description copied from interface: ISearchOperation

Initializes a new operation executor for the given operation. Repeated calls must return different executor instances.

Specified by:

createExecutor in interface ISearchOperation

getVariablePositions

public List<Integer> getVariablePositions()

Specified by:

getVariablePositions in interface ISearchOperation

Returns:

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

toString

public String toString()

Overrides:

toString in class Object

toString

public String toString(Function<Integer,String> variableMapping)

Description copied from interface: ISearchOperation

Creates a string representation of the search operation by replacing the variable numbers according to the parameter function. It is expected that the provided function does return a non-null value for each variable index that is returned by ISearchOperation.getVariablePositions(); otherwise a NullPointerException will be thrown during the calculation of the string.

Specified by:

toString in interface ISearchOperation