Examples of org.apache.derby.vti.Restriction

            Predicate predicate = (Predicate) parentPredicates.elementAt( i );


            if ( canBePushedDown( predicate ) )
            {
                // A Predicate has a top level AND node
                Restriction newRestriction = makeRestriction( predicate.getAndNode(), columnNameMap );


                // If newRestriction is null, then we are confused. Don't push
                // the restriction into the table function
                if ( newRestriction == null )
                {


            // strip off trailing vacuous constant if present
            if ( andOperator.getRightOperand() instanceof BooleanConstantNode )
            { return makeRestriction( andOperator.getLeftOperand(), columnNameMap ); }
            
            Restriction leftRestriction = makeRestriction( andOperator.getLeftOperand(), columnNameMap );
            Restriction rightRestriction = makeRestriction( andOperator.getRightOperand(), columnNameMap );


            if ( (leftRestriction == null) || (rightRestriction == null) ) { return null; }


            return new Restriction.AND( leftRestriction, rightRestriction );
        }
        else if ( clause instanceof OrNode )
        {
            OrNode orOperator = (OrNode) clause;
            
            // strip off trailing vacuous constant if present
            if ( orOperator.getRightOperand() instanceof BooleanConstantNode )
            { return makeRestriction( orOperator.getLeftOperand(), columnNameMap ); }
            
            Restriction leftRestriction = makeRestriction( orOperator.getLeftOperand(), columnNameMap );
            Restriction rightRestriction = makeRestriction( orOperator.getRightOperand(), columnNameMap );


            if ( (leftRestriction == null) || (rightRestriction == null) ) { return null; }


            return new Restriction.OR( leftRestriction, rightRestriction );
        }

Examples of org.apache.derby.vti.Restriction

Related Classes of org.apache.derby.vti.Restriction