Application: gvSIG desktop

package org.gvsig.fmap.dal.store.h2.expressionbuilderformatter;

import org.gvsig.expressionevaluator.ExpressionBuilder;

import org.gvsig.expressionevaluator.ExpressionBuilder.Value;

import org.gvsig.expressionevaluator.Formatter;

import org.gvsig.fmap.dal.SQLBuilder;

/**

 *

 * @author jjdelcerro

 */

public class H2SpatialFormatter implements Formatter<Value> {

    private final SQLBuilder builder;

    private final Formatter<ExpressionBuilder.Value>[] formatters;

    public H2SpatialFormatter(SQLBuilder builder) {

        this.builder = builder;

        this.formatters = new Formatter[]{

            new IfNull(this.builder, this),

            new IsNotNull(this.builder, this),

            new IsNull(this.builder, this),

            new ST_AsEWKB(this.builder, this),

            new ST_GeomFromEWKB(this.builder, this),

            new ST_Intersects(this.builder, this),

            new ST_ExtentAggregate(this.builder, this)

        };

    }

    @Override

    public boolean canApply(Value value) {

        for (Formatter<Value> formatter : formatters) {

            if (formatter.canApply(value)) {

                return true;

            }

        }

        return false;

    }

    @Override

    public String format(Value value) {

        for (Formatter<Value> formatter : formatters) {

            if (formatter.canApply(value)) {

                return formatter.format(value);

            }

        }

        return value.toString(this);

    }

}