oracle.webcenter.portal.persistence.query

Interface Expression

All Known Implementing Classes:

And, CompositeExpression, Contains, Equal, GreaterThan, In, IsNotNull, IsNull, Join, LessThan, Like, Not, NotEqual, Or, PropertyComparison, PropertyValueComparison

public interface Expression

Interface implemented by all query expression

Method Summary

Modifier and Type	Method and Description
void	accept(Visitor visitor) Accepts a visitor
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	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

Method Detail

accept

void accept(Visitor visitor)

Accepts a visitor

Parameters:

visitor - the visitor

and

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

Parameters:

expression - the other expression

Returns:

the And expression

or

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

Parameters:

expression - the other expression

Returns:

the Or expression

not

Expression not()

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

Returns:

the Not expression