Application: gvSIG desktop » gvSIG data provider for PostgreSQL

package org.gvsig.postgresql.dal.expressionbuilderformatter;

import org.gvsig.expressionevaluator.ExpressionBuilder;

import org.gvsig.expressionevaluator.ExpressionBuilder.Value;

import org.gvsig.expressionevaluator.Formatter;

import org.gvsig.fmap.dal.DALLocator;

import org.gvsig.fmap.dal.SQLBuilder;

import org.gvsig.fmap.dal.store.jdbc2.spi.expressionbuilder.formatters.ComputedAttribute;

import org.gvsig.fmap.dal.store.jdbc2.spi.expressionbuilder.formatters.Exists;

import org.gvsig.fmap.dal.store.jdbc2.spi.expressionbuilder.formatters.ToDouble;

import org.gvsig.fmap.dal.store.jdbc2.spi.expressionbuilder.formatters.ToInteger;

import org.gvsig.fmap.dal.store.jdbc2.spi.expressionbuilder.formatters.ToLong;

/**

 *

 * @author jjdelcerro

 */

public class PostgreSQLFormatter implements Formatter<Value> {

    private final SQLBuilder builder;

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

    @SuppressWarnings("LeakingThisInConstructor")

    public PostgreSQLFormatter(SQLBuilder builder) {

        this.builder = builder;

        this.formatters = new Formatter[]{

            new Decode(this.builder, this),

            new Constant(this.builder, this),

            new ILike(this.builder, this),

            new IfNull(this.builder, this),

            new IsNull(this.builder, this),

            new IsNotNull(this.builder, this),

            new ST_ExtentAggregate(this.builder, this),

            new ST_GeomFromWKB(this.builder, this),

            new ST_GeomFromText(this.builder, this),

            new Getattr(this.builder, this),

//            new Iff(this),

            new Exists(this),

            new ComputedAttribute(this.builder, this),

            new ToInteger(this.builder, this),

            new ToDouble(this.builder, this),

            new ToLong(this.builder, this),

            DALLocator.getDataManager().createDALExpressionBuilder().formatter(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);

    }

}