ilog.rules.factory
Class IlrArrayElement

java.lang.Object
  ilog.rules.factory.IlrValue
      ilog.rules.factory.IlrArrayElement

All Implemented Interfaces:

IlrAssignable, Serializable

public final class IlrArrayElement
extends IlrValue
implements IlrAssignable

This class represents an array element expression. An array element expression is an expression of the form arr[index]. An array element expression is assignable.

Warning: Serialized objects of this class will not be compatible with future JRule releases. The current serialization support is appropriate for short term storage or RMI between applications running the same version of JRules.

See Also:

Serialized Form

Constructor Summary

IlrArrayElement(IlrValue array, IlrValue[] indexes)
Constructs an array element expression using an array expression and an index expression.

Method Summary

Object	exploreAssignable(IlrFactoryExplorer explorer) Explores the array element as an assignable entity and returns an object as a result.
Object	exploreValue(IlrFactoryExplorer explorer) Explores the array element as a value and returns an object as a result.
IlrValue	getArray() Gets the array value of this expression.
IlrValue[]	getIndexes() Gets the indexes values of this expression.
boolean	isAssignableFrom(IlrValue value) Checks whether the array element can be assigned a given value.
void	setIndexes(IlrValue[] indexes) Changes the indexes values of this expression.

Methods inherited from class ilog.rules.factory.IlrValue

add, divide, getField, getReflect, getType, getXOMType, invokeEquals, isConstant, isEvent, isEventCondition, isNull, multiply, remainder, subtract, testAfter, testAfter, testBefore, testBefore, testEqual, testFalse, testGreaterOrEqual, testGreaterThan, testIn, testInstanceOf, testLessOrEqual, testLessThan, testNotEqual, testNotIn, testOccursin, testTrue, timeof, toNegative, toPositive, toPostfixDecr, toPostfixIncr, toPrefixDecr, toPrefixIncr

Methods inherited from class java.lang.Object

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

Methods inherited from interface ilog.rules.factory.IlrAssignable

getType

Constructor Detail

IlrArrayElement

public IlrArrayElement(IlrValue array,
                       IlrValue[] indexes)

Constructs an array element expression using an array expression and an index expression. The constructed expression is attached to the same IlrReflect object as array.

Parameters:

array - An expression, whose type must be an array.

indexes - An array of expressions, whose type must be integer.

Method Detail

getArray

public IlrValue getArray()

Gets the array value of this expression.

Returns:

The array expression.

getIndexes

public IlrValue[] getIndexes()

Gets the indexes values of this expression.

Returns:

The indexes values.

setIndexes

public void setIndexes(IlrValue[] indexes)

Changes the indexes values of this expression.

Parameters:

indexes - The new indexes values.

isAssignableFrom

public boolean isAssignableFrom(IlrValue value)

Checks whether the array element can be assigned a given value.

Specified by:

isAssignableFrom in interface IlrAssignable

Parameters:

value - The value to be assigned to the array element.

Returns:

true if the assignment is permitted, false otherwise.

exploreValue

public Object exploreValue(IlrFactoryExplorer explorer)

Explores the array element as a value and returns an object as a result.

Specified by:

exploreValue in class IlrValue

Parameters:

explorer - The factory explorer.

Returns:

An object, the result of the exploration, or null if the method does not return a value.

exploreAssignable

public Object exploreAssignable(IlrFactoryExplorer explorer)

Explores the array element as an assignable entity and returns an object as a result.

Specified by:

exploreAssignable in interface IlrAssignable

Parameters:

explorer - The factory explorer.

Returns:

An object, the result of the exploration, or null if the method does not return a value.