org.joty.workstation.gui.BufferedComboBoxTerm Maven / Gradle / Ivy
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/*
Copyright (c) 2013-2015, Stefano Pizzocaro. All rights reserved. Use is subject to license terms.
This file is part of Joty 2.0 Workstation.
Joty 2.0 Workstation 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.
Joty 2.0 Workstation 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 Joty 2.0 Workstation. If not, see
* It uses a JotyDataBuffer to host an entire record set (instead of a set of
* {@code DescrStruct} objects), and it makes possible the choice of the field to be
* displayed by the ComboBox component and associates the current selection of
* it to the corresponding record in the buffer.
*
* @see ComboBox
* @see org.joty.app.LiteralsCollection.DescrStruct
* @see JotyDataBuffer
*
*/
public class BufferedComboBoxTerm extends ComboBoxTerm {
public class BufferedComboBox extends ComboBox {
BufferedComboBoxTerm m_bufferedTerm;
public BufferedComboBox(TermContainerPanel panel, BufferedComboBoxTerm bufferedComboBoxTerm) {
super(panel, bufferedComboBoxTerm);
m_bufferedTerm = bufferedComboBoxTerm;
}
@Override
protected void newIndexEffects() {
super.newIndexEffects();
m_bufferedTerm.m_dataBuffer.m_cursorPos = getSelectedIndex();
}
}
private JotyDataBuffer m_dataBuffer;
private String m_bufferKey;
private String m_visibleField;
private String m_query;
public BufferedComboBoxTerm(TermContainerPanel panel, TermParams params) {
super(panel, JotyTypes._long, params);
m_dataBuffer = new JotyDataBuffer();
}
public JotyDataBuffer buffer() {
return m_dataBuffer;
}
public void config(String bufferKey, String bufferVisibleField, String query) {
m_bufferKey = bufferKey;
m_visibleField = bufferVisibleField;
m_query = query;
}
@Override
protected void createComponent(TermContainerPanel panel) {
m_cmb = new BufferedComboBox(panel, this);
}
@Override
protected String doRender(WrappedField wfield) {
return m_dataBuffer.strValue(m_visibleField, (int) wfield.getInteger());
}
@Override
protected Integer getPosIndexFromData(long value) {
return m_dataBuffer.getKeyPos(value);
}
@Override
void init() {
m_dataBuffer.setKeyFieldName(m_bufferKey);
PostStatement postStatement = m_panel.createContextPostStatement(m_name);
if (m_panel instanceof DataAccessPanel && ((DataAccessPanel) m_panel).m_localAccessor) {
m_app.m_accessor.setPostStatement(postStatement);
m_query = m_app.m_accessor.getQueryFromPostStatement();
}
WResultSet rs = new WResultSet(null, m_query);
m_dataBuffer.empty(false);
m_dataBuffer.loadData(rs, postStatement);
super.init();
}
@Override
protected void pickUpAndPumpData() {
DescrStruct descrStruct = null;
for (int i = 0; i < m_dataBuffer.m_records.size(); i++) {
descrStruct = m_literalsCollectionInstance.new DescrStruct();
descrStruct.id = m_dataBuffer.getKeyLongVal(i);
descrStruct.descr = m_dataBuffer.strValue(m_visibleField, i);
m_cmb.addItem(descrStruct);
}
}
@Override
protected void checkLiteralStructIsDynamic(TermParams params) {}
@Override
protected void selectionEffects(int index) {
m_dataBuffer.m_cursorPos = index;
}
}