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/*
 * This file is part of Log4Jdbc.
 *
 * Log4Jdbc is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * Log4Jdbc is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with Log4Jdbc.  If not, see .
 *
 */
package fr.ms.log4jdbc.resultset;

import java.util.HashMap;
import java.util.Map;

import fr.ms.log4jdbc.resultset.Cell;
import fr.ms.log4jdbc.resultset.Row;

/**
 *
 * @see Marco4J
 *
 *
 * @author Marco Semiao
 *
 */
public class RowImpl implements Row, Comparable {

    private final int position;

    private final Map values = new HashMap();

    public RowImpl(final int position) {
	this.position = position;
    }

    public CellImpl addValueColumn(final ColumnImpl columnDetail, final Object value) {
	final CellImpl cell = new CellImpl(columnDetail, this, value);

	final Integer index = new Integer(columnDetail.getIndex());
	final String label = columnDetail.getLabel();

	final Object object = values.get(index);

	if (object == null) {
	    values.put(index, cell);
	    values.put(label, cell);
	}

	return cell;
    }

    public int getPosition() {
	return position;
    }

    public Cell getValue(final int columnIndex) {
	final Integer index = new Integer(columnIndex);
	return (Cell) values.get(index);
    }

    public Cell getValue(final String columnLabel) {
	return (Cell) values.get(columnLabel);
    }

    public int compareTo(final Object obj) {
	final RowImpl o = (RowImpl) obj;
	return this.position - o.position;
    }

    public int hashCode() {
	final int prime = 31;
	int result = 1;
	result = prime * result + position;
	return result;
    }

    public boolean equals(final Object obj) {
	if (this == obj) {
	    return true;
	}
	if (obj == null) {
	    return false;
	}
	if (getClass() != obj.getClass()) {
	    return false;
	}
	final RowImpl other = (RowImpl) obj;
	if (position != other.position) {
	    return false;
	}
	return true;
    }

    public String toString() {
	return "RowImpl [position=" + position + ", values=" + values + "]";
    }
}