com.bea.p13n.expression.operator.logical
Class LogicalOperator

java.lang.Object
  com.bea.p13n.expression.internal.ComplexExpressionImpl
      com.bea.p13n.expression.operator.Operator
          com.bea.p13n.expression.operator.logical.LogicalOperator

All Implemented Interfaces

Expression, com.bea.p13n.expression.ExpressionEvents, Serializable, Cloneable

Direct Known Subclasses:

LogicalAnd, LogicalMultiAnd, LogicalMultiOr, LogicalNot, LogicalOr

public abstract class LogicalOperator
extends Operator

Implementation of the LogicalOperator operator. Base class for all LogicalOperators.

See Also

Serialized Form

Field Summary

protected static Class[]	BINARY_PARAMETER_SIGNATURE
protected static Class[]	UNARY_PARAMETER_SIGNATURE

Fields inherited from interface com.bea.p13n.expression.ExpressionEvents

EVENT_ADD_SUBEXPRESSION, EVENT_CLEAR_CACHE, EVENT_INTERNAL_MAX, EVENT_REMOVE_SUBEXPRESSION, EVENT_SET_CACHE_ENABLED, EVENT_SET_CACHED_VALUE, EVENT_SET_PARENT, EVENT_SET_SOURCE, EVENT_SET_SUBEXPRESSION, EVENT_SET_USER_DATA

Constructor Summary

protected	LogicalOperator() A default constructor that can used by multi-operand operators.
protected	LogicalOperator(Object operand) Allocates a LogicalOperator by associating the given single operand.
	LogicalOperator(Object[] operands) Allocates a LogicalOperator by associating the given array of of operands.
protected	LogicalOperator(Object lhs, Object rhs) Allocates a LogicalOperator by associating the given two operands.

Method Summary

protected static Class[]

updateParameterSignature(int subExpressionCount, Class[] oldSignature) Returns a new parameter signature array for the given sub-expression count and old parameter signature array.

Methods inherited from class com.bea.p13n.expression.operator.Operator

leftHandSide, operand, rightHandSide

Methods inherited from class com.bea.p13n.expression.internal.ComplexExpressionImpl

addListener, addSubExpression, clearCache, clone, createProxyExpression, equals, getCachedValue, getParent, getSource, getSubExpression, getSubExpressionCount, getUserData, hashCode, isCached, isCacheEnabled, isEqualitySubExpression, notifyListeners, removeAllSubExpressions, removeListener, removeSubExpression, removeSubExpression, setCachedValue, setCacheEnabled, setParent, setSource, setSubExpression, setUserData, toString, write

Methods inherited from class java.lang.Object

finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface com.bea.p13n.expression.Expression

getParameterSignature

Field Detail

BINARY_PARAMETER_SIGNATURE

protected static final Class[] BINARY_PARAMETER_SIGNATURE

UNARY_PARAMETER_SIGNATURE

protected static final Class[] UNARY_PARAMETER_SIGNATURE

Constructor Detail

LogicalOperator

protected LogicalOperator()

A default constructor that can used by multi-operand operators.

LogicalOperator

protected LogicalOperator(Object operand)

Allocates a LogicalOperator by associating the given single operand.

Parameters

operand - An Object acting as a operand for this.

LogicalOperator

protected LogicalOperator(Object lhs,
                          Object rhs)

Allocates a LogicalOperator by associating the given two operands.

Parameters

lhs - The left hand side operand for this.

rhs - The right hand side operand for this.

LogicalOperator

public LogicalOperator(Object[] operands)

Allocates a LogicalOperator by associating the given array of of operands.

Parameters

operands - An array of Objects act as operands for this.

Method Detail

updateParameterSignature

protected static Class[] updateParameterSignature(int subExpressionCount,
                                                  Class[] oldSignature)

Returns a new parameter signature array for the given sub-expression count and old parameter signature array.

Parameters

subExpressionCount - The new number of sub-expressions.

oldSignature - The Class array representing the the old parameter signature for the given operator.