/*
* JasperReports - Free Java Reporting Library.
* Copyright (C) 2001 - 2009 Jaspersoft Corporation. All rights reserved.
* http://www.jaspersoft.com
*
* Unless you have purchased a commercial license agreement from Jaspersoft,
* the following license terms apply:
*
* This program is part of JasperReports.
*
* JasperReports is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* JasperReports 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 Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with JasperReports. If not, see <http://www.gnu.org/licenses/>.
*/
package net.sf.jasperreports.engine.design;
import java.beans.PropertyChangeListener;
import java.beans.PropertyChangeSupport;
import java.util.ArrayList;
import java.util.List;
import net.sf.jasperreports.engine.JRConstants;
import net.sf.jasperreports.engine.JRQueryChunk;
import net.sf.jasperreports.engine.base.JRBaseQuery;
import net.sf.jasperreports.engine.design.events.JRChangeEventsSupport;
import net.sf.jasperreports.engine.design.events.JRPropertyChangeSupport;
import net.sf.jasperreports.engine.util.JRQueryChunkHandler;
import net.sf.jasperreports.engine.util.JRQueryParser;
/**
* @author Teodor Danciu (teodord@users.sourceforge.net)
* @version $Id: JRDesignQuery.java 3033 2009-08-27 11:46:22Z teodord $
*/
public class JRDesignQuery extends JRBaseQuery implements JRChangeEventsSupport
{
/** Property change support mechanism. */
private transient JRPropertyChangeSupport propSupport;
/**
*
*/
private static final long serialVersionUID = JRConstants.SERIAL_VERSION_UID;
public static final String PROPERTY_LANGUAGE = "language";
public static final String PROPERTY_TEXT = "text";
/**
*
*/
protected List chunks = new ArrayList();
private transient final JRQueryChunkHandler chunkAdder = new JRQueryChunkHandler()
{
public void handleParameterChunk(String text)
{
addParameterChunk(text);
}
public void handleParameterClauseChunk(String text)
{
addParameterClauseChunk(text);
}
public void handleTextChunk(String text)
{
addTextChunk(text);
}
public void handleClauseChunk(String[] tokens)
{
addClauseChunk(tokens);
}
};
/**
*
*/
public JRQueryChunk[] getChunks()
{
JRQueryChunk[] chunkArray = null;
if (chunks != null && chunks.size() > 0)
{
chunkArray = new JRQueryChunk[chunks.size()];
chunks.toArray(chunkArray);
}
return chunkArray;
}
/**
*
*/
public void setChunks(List chunks)
{
this.chunks = chunks;
}
/**
*
*/
public void addChunk(JRDesignQueryChunk chunk)
{
this.chunks.add(chunk);
}
/**
*
*/
public void addTextChunk(String text)
{
JRDesignQueryChunk chunk = new JRDesignQueryChunk();
chunk.setType(JRQueryChunk.TYPE_TEXT);
chunk.setText(text);
this.chunks.add(chunk);
}
/**
*
*/
public void addParameterChunk(String text)
{
JRDesignQueryChunk chunk = new JRDesignQueryChunk();
chunk.setType(JRQueryChunk.TYPE_PARAMETER);
chunk.setText(text);
this.chunks.add(chunk);
}
/**
*
*/
public void addParameterClauseChunk(String text)
{
JRDesignQueryChunk chunk = new JRDesignQueryChunk();
chunk.setType(JRQueryChunk.TYPE_PARAMETER_CLAUSE);
chunk.setText(text);
this.chunks.add(chunk);
}
/**
* Adds a {@link JRQueryChunk#TYPE_CLAUSE_TOKENS clause chunk} to the query.
*
* @param tokens the clause tokens
* @see JRDesignQueryChunk#setTokens(String[])
*/
public void addClauseChunk(String[] tokens)
{
JRDesignQueryChunk chunk = new JRDesignQueryChunk();
chunk.setType(JRQueryChunk.TYPE_CLAUSE_TOKENS);
chunk.setTokens(tokens);
this.chunks.add(chunk);
}
/**
*
*/
public void setText(String text)
{
Object old = getText();
chunks = new ArrayList();
JRQueryParser.instance().parse(text, chunkAdder);
getEventSupport().firePropertyChange(PROPERTY_TEXT, old, getText());
}
/**
* Sets the query language.
*
* @param language the query language
* @see net.sf.jasperreports.engine.JRQuery#getLanguage()
*/
public void setLanguage(String language)
{
String oldValue = this.language;
this.language = language;
getPropertyChangeSupport().firePropertyChange(PROPERTY_LANGUAGE, oldValue, this.language);
}
public JRPropertyChangeSupport getEventSupport()
{
synchronized (this)
{
if (propSupport == null)
{
propSupport = new JRPropertyChangeSupport(this);
}
}
return propSupport;
}
/**
* Get the property change support object for this class. Because the
* property change support object has to be transient, it may need to be
* created.
*
* @return the property change support object.
*/
protected PropertyChangeSupport getPropertyChangeSupport()
{
return getEventSupport();
}
/**
* Add a property listener to listen to all properties of this class.
* @param l The property listener to add.
* @see #removePropertyChangeListener(PropertyChangeListener)
*/
public void addPropertyChangeListener(PropertyChangeListener l)
{
getPropertyChangeSupport().addPropertyChangeListener(l);
}
/**
* Add a property listener to receive property change events for only one specific
* property.
* @param propName The property to listen to.
* @param l The property listener to add.
* @see #removePropertyChangeListener(String, PropertyChangeListener)
*/
public void addPropertyChangeListener(String propName, PropertyChangeListener l)
{
getPropertyChangeSupport().addPropertyChangeListener(propName, l);
}
/**
* Remove a property change listener registered for all properties.
*
* This will only remove listeners that were added through the
* {@link #addPropertyChangeListener(PropertyChangeListener) addPropertyChangeListener(PropertyChangeListener)}
* method.
*
* @param l The listener to remove.
*/
public void removePropertyChangeListener(PropertyChangeListener l)
{
getPropertyChangeSupport().removePropertyChangeListener(l);
}
/**
* Remove a property change listener registered for a specific property.
*
* @param propName The property to listen to.
* @param l The listener to remove.
*/
public void removePropertyChangeListener(String propName, PropertyChangeListener l)
{
getPropertyChangeSupport().removePropertyChangeListener(propName, l);
}
/**
*
*/
public Object clone()
{
JRDesignQuery clone = (JRDesignQuery)super.clone();
if (chunks != null)
{
clone.chunks = new ArrayList(chunks.size());
for(int i = 0; i < chunks.size(); i++)
{
clone.chunks.add(((JRQueryChunk)chunks.get(i)).clone());
}
}
return clone;
}
}