Application: gvSIG desktop

package org.gvsig.expressionevaluator.impl.function.spatial;

import org.gvsig.expressionevaluator.Code;

import org.gvsig.expressionevaluator.CodeBuilder;

import static org.gvsig.expressionevaluator.ExpressionBuilder.OPERATOR_AND2;

import org.gvsig.expressionevaluator.ExpressionEvaluatorLocator;

import org.gvsig.expressionevaluator.ExpressionEvaluatorManager;

import org.gvsig.expressionevaluator.impl.function.operator.*;

import org.gvsig.expressionevaluator.Function;

import org.gvsig.expressionevaluator.Interpreter;

import org.gvsig.expressionevaluator.LexicalAnalyzer;

import org.gvsig.expressionevaluator.UserOperator;

import static org.gvsig.expressionevaluator.UserOperator.OERATOR_PRECEDENCE_SUM;

import org.gvsig.expressionevaluator.spi.UserOperatorBase;

import org.gvsig.fmap.geom.Geometry;

import org.gvsig.fmap.geom.GeometryUtils;

public class AndAndOperator extends AbstractGeometryBinaryOperator {

    public AndAndOperator() {

        super(Function.GROUP_OGC, OPERATOR_AND2, true);

    }

    @Override

    public boolean allowConstantFolding() {

        return true;

    }

    @Override

    public Object call(Interpreter interpreter, Object op1, Object op2) {       

        if( op1 instanceof Geometry && op2 instanceof Geometry ) {

            boolean value = ((Geometry)op1).getEnvelope().intersects(((Geometry)op2).getEnvelope());

            return value;

        }

        throw new IllegalArgumentException("Types not allowed in '"+name()+"' operand.");

    }

    public static void selfRegister() {

        ExpressionEvaluatorManager manager = ExpressionEvaluatorLocator.getExpressionEvaluatorManager();

        manager.registerUserOperator(new UserOperatorBase(OPERATOR_AND2, OERATOR_PRECEDENCE_SUM));

    }

}