oracle.webcenter.portal.persistence.query

Class CompositeExpression

java.lang.Object

oracle.webcenter.portal.persistence.query.CompositeExpression

All Implemented Interfaces:

Expression

Direct Known Subclasses:

And, Or

public abstract class CompositeExpression
extends java.lang.Object

An abstract base class extended by expressions that have sub expressions

Constructor Summary

Constructors

Constructor and Description
CompositeExpression(Expression... expressions) Constructor

Method Summary

Modifier and Type	Method and Description
Expression	and(Expression expression) Creates an And expression which will be a logical "and" of this expression and the expression passed in as a parameter
Expression[]	getExpressions() Gets the sub expressions
protected abstract java.lang.String	getSeparator() Gets the separator used to separate the sub-expressions when converting the expression to a String
Expression	not() Creates a Not expression which will be the logical "not" of this epxression
Expression	or(Expression expression) Creates an Or expression which will be a logical "or" of this expression and the expression passed in as a parameter
java.lang.String	toString()

Methods inherited from class java.lang.Object

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

Methods inherited from interface oracle.webcenter.portal.persistence.query.Expression

accept

Constructor Detail

CompositeExpression

public CompositeExpression(Expression... expressions)

Constructor

Parameters:

expressions - the sub expressions

Method Detail

getExpressions

public Expression[] getExpressions()

Gets the sub expressions

Returns:

the sub expressions

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object

getSeparator

protected abstract java.lang.String getSeparator()

Gets the separator used to separate the sub-expressions when converting the expression to a String

Returns:

the separator

and

public Expression and(Expression expression)

Creates an And expression which will be a logical "and" of this expression and the expression passed in as a parameter

Specified by:

and in interface Expression

Parameters:

expression - the other expression

Returns:

the And expression

or

public Expression or(Expression expression)

Creates an Or expression which will be a logical "or" of this expression and the expression passed in as a parameter

Specified by:

or in interface Expression

Parameters:

expression - the other expression

Returns:

the Or expression

not

public Expression not()

Creates a Not expression which will be the logical "not" of this epxression

Specified by:

not in interface Expression

Returns:

the Not expression