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jdbacl stands for 'Java DataBase ACcess Layer' and provides utilities for accessing JDBC databases from Java programs, retrieving meta information in an object model and querying database data.

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/*
 * (c) Copyright 2010 by Volker Bergmann. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, is permitted under the terms of the
 * GNU General Public License (GPL).
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * WITHOUT A WARRANTY OF ANY KIND. ALL EXPRESS OR IMPLIED CONDITIONS,
 * REPRESENTATIONS AND WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF
 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT, ARE
 * HEREBY EXCLUDED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 */

package org.databene.jdbacl.model;

import java.io.Serializable;
import java.util.Map;

import org.databene.commons.Assert;
import org.databene.commons.collection.OrderedNameMap;

/**
 * Represents a row in a database table.


 * Created: 23.07.2010 07:29:14
 * @since 0.6.3
 * @author Volker Bergmann
 */
public class DBRow implements Serializable {
	
	private static final long serialVersionUID = 644247555736773166L;
	
	DBTable table;
	OrderedNameMap cells;

	public DBRow(DBTable table) {
	    this.table = table;
	    this.cells = OrderedNameMap.createCaseIgnorantMap();
    }

	public DBTable getTable() {
    	return table;
    }
	
	public DBRow withTable(DBTable table) {
		this.table = table;
		return this;
	}
	
	public Map getCells() {
		return cells;
	}

	public Object[] getPKValues() {
		return getCellValues(table.getPKColumnNames());
    }

	public Object getPKValue() {
		String[] columnNames = table.getPKColumnNames();
		if (columnNames.length == 1)
			return getCellValue(columnNames[0]);
		else
			return getCellValues(columnNames);
	}

	public Object getFKValue(DBForeignKeyConstraint fk) {
		String[] columnNames = fk.getColumnNames();
		if (columnNames.length == 1)
			return getCellValue(columnNames[0]);
		else
			return getCellValues(columnNames);
    }

	public void setFKValue(DBForeignKeyConstraint fkConstraint, Object fkValue) {
		String[] columnNames = fkConstraint.getColumnNames();
		if (columnNames.length == 1)
			setCellValue(columnNames[0], fkValue);
		else {
			Object[] cellValues = (Object[]) fkValue;
			setCellValues(columnNames, cellValues);
		}
	}

	public Object[] getFKComponents(DBForeignKeyConstraint fk) {
		return getCellValues(fk.getColumnNames());
	}

	public void setCellValues(String[] columnNames, Object[] cellValues) {
		Assert.equals(columnNames.length, cellValues.length, "mismatch of column and value counts");
		for (int i = 0; i < columnNames.length; i++)
			setCellValue(columnNames[i], cellValues[i]);
	}

	private Object[] getCellValues(String[] columnNames) {
		Object[] result = new Object[columnNames.length];
		for (int i = 0; i < columnNames.length; i++)
			result[i] = cells.get(columnNames[i]);
	    return result;
    }

	public Object getCellValue(String columnName) {
	    return cells.get(columnName);
    }

	public void setCellValue(String columnName, Object value) {
	    cells.put(columnName, value);
    }

	@Override
	public String toString() {
	    return table.getName() + cells.values();
	}

	public void setPKValue(Object newPK) {
		String[] columnNames = table.getPKColumnNames();
		if (columnNames.length == 1)
			setCellValue(columnNames[0], newPK);
		else
			setCellValues(columnNames, (Object[]) newPK);
	}

}
    

    

    

            

    

            



    
    






    
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