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org.apache.cayenne.modeler.editor.SQLTemplatePrefetchTab Maven / Gradle / Ivy
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* Licensed to the Apache Software Foundation (ASF) under one
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* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
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*
* https://www.apache.org/licenses/LICENSE-2.0
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* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
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* KIND, either express or implied. See the License for the
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package org.apache.cayenne.modeler.editor;
import org.apache.cayenne.configuration.event.QueryEvent;
import org.apache.cayenne.map.Attribute;
import org.apache.cayenne.map.Entity;
import org.apache.cayenne.map.QueryDescriptor;
import org.apache.cayenne.map.Relationship;
import org.apache.cayenne.map.SQLTemplateDescriptor;
import org.apache.cayenne.modeler.Application;
import org.apache.cayenne.modeler.ProjectController;
import org.apache.cayenne.modeler.undo.AddPrefetchUndoableEditForSqlTemplate;
import org.apache.cayenne.modeler.util.CayenneAction;
import org.apache.cayenne.modeler.util.EntityTreeFilter;
import org.apache.cayenne.modeler.util.EntityTreeModel;
import org.apache.cayenne.modeler.util.ModelerUtil;
import org.apache.cayenne.modeler.util.MultiColumnBrowser;
import org.apache.cayenne.modeler.util.UIUtil;
import org.apache.cayenne.swing.components.image.FilteredIconFactory;
import org.apache.cayenne.util.CayenneMapEntry;
import javax.swing.BorderFactory;
import javax.swing.DefaultCellEditor;
import javax.swing.Icon;
import javax.swing.JButton;
import javax.swing.JComboBox;
import javax.swing.JComponent;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JSplitPane;
import javax.swing.JTable;
import javax.swing.JToolBar;
import javax.swing.ListSelectionModel;
import javax.swing.table.DefaultTableCellRenderer;
import javax.swing.table.TableColumn;
import javax.swing.table.TableModel;
import javax.swing.tree.TreeModel;
import java.awt.BorderLayout;
import java.awt.CardLayout;
import java.awt.Dimension;
import java.beans.PropertyChangeEvent;
import java.beans.PropertyChangeListener;
import java.util.prefs.Preferences;
/**
* Class configured to work with prefetches.
*/
public class SQLTemplatePrefetchTab extends JPanel implements PropertyChangeListener {
// property for split pane divider size
private static final String SPLIT_DIVIDER_LOCATION_PROPERTY = "query.orderings.divider.location";
private static final Dimension BROWSER_CELL_DIM = new Dimension(150, 100);
private static final Dimension TABLE_DIM = new Dimension(460, 60);
private static final String REAL_PANEL = "real";
private static final String PLACEHOLDER_PANEL = "placeholder";
protected ProjectController mediator;
protected SQLTemplateDescriptor sqlTemplate;
protected MultiColumnBrowser browser;
protected JTable table;
protected CardLayout cardLayout;
protected JPanel messagePanel;
public SQLTemplatePrefetchTab(ProjectController mediator) {
this.mediator = mediator;
initView();
initController();
}
protected void initView() {
messagePanel = new JPanel(new BorderLayout());
cardLayout = new CardLayout();
Preferences detail = Application.getInstance().getPreferencesNode(this.getClass(), "");
int defLocation = Application.getFrame().getHeight() / 2;
int location = detail != null ? detail.getInt(
getDividerLocationProperty(),
defLocation) : defLocation;
//As of CAY-888 #3 main pane is now a JSplitPane. Top component is a bit larger.
JSplitPane mainPanel = new JSplitPane(JSplitPane.VERTICAL_SPLIT);
mainPanel.addPropertyChangeListener(JSplitPane.DIVIDER_LOCATION_PROPERTY, this);
mainPanel.setDividerLocation(location);
mainPanel.setTopComponent(createEditorPanel());
mainPanel.setBottomComponent(createSelectorPanel());
setLayout(cardLayout);
add(mainPanel, REAL_PANEL);
add(messagePanel, PLACEHOLDER_PANEL);
}
protected void initController() {
// scroll to selected row whenever a selection even occurs
table.getSelectionModel().addListSelectionListener(e -> {
if (!e.getValueIsAdjusting()) {
UIUtil.scrollToSelectedRow(table);
}
});
}
protected void initFromModel() {
QueryDescriptor query = mediator.getCurrentQuery();
if (query == null || !QueryDescriptor.SQL_TEMPLATE.equals(query.getType())) {
processInvalidModel("Unknown query.");
return;
}
if (!(query.getRoot() instanceof Entity)) {
processInvalidModel("SQLTemplate has no root set.");
return;
}
this.sqlTemplate = (SQLTemplateDescriptor) query;
browser.setModel(createBrowserModel((Entity) sqlTemplate.getRoot()));
table.setModel(createTableModel());
setUpPrefetchBox(table.getColumnModel().getColumn(2));
// init column sizes
table.getColumnModel().getColumn(0).setPreferredWidth(250);
cardLayout.show(this, REAL_PANEL);
}
protected void processInvalidModel(String message) {
JLabel messageLabel = new JLabel(message, JLabel.CENTER);
messagePanel.removeAll();
messagePanel.add(messageLabel, BorderLayout.CENTER);
cardLayout.show(this, PLACEHOLDER_PANEL);
}
protected void setUpPrefetchBox(TableColumn column) {
JComboBox prefetchBox = new JComboBox<>();
prefetchBox.addItem(SelectQueryPrefetchTab.JOINT_PREFETCH_SEMANTICS);
prefetchBox.addItem(SelectQueryPrefetchTab.DISJOINT_BY_ID_PREFETCH_SEMANTICS);
prefetchBox.addActionListener(e -> Application.getInstance().getFrameController().getEditorView().getEventController().setDirty(true));
column.setCellEditor(new DefaultCellEditor(prefetchBox));
DefaultTableCellRenderer renderer =
new DefaultTableCellRenderer();
renderer.setToolTipText("Click for combo box");
column.setCellRenderer(renderer);
}
protected JPanel createEditorPanel() {
table = new JTable();
table.setRowHeight(25);
table.setRowMargin(3);
table.setPreferredScrollableViewportSize(TABLE_DIM);
table.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);
JPanel panel = new JPanel(new BorderLayout());
panel.add(new JScrollPane(table), BorderLayout.CENTER);
return panel;
}
protected JPanel createSelectorPanel() {
browser = new MultiColumnBrowser();
browser.setPreferredColumnSize(BROWSER_CELL_DIM);
browser.setDefaultRenderer();
JPanel panel = new JPanel(new BorderLayout());
panel.add(createToolbar(), BorderLayout.NORTH);
panel.add(new JScrollPane(
browser,
JScrollPane.VERTICAL_SCROLLBAR_NEVER,
JScrollPane.HORIZONTAL_SCROLLBAR_AS_NEEDED), BorderLayout.CENTER);
// setting minimal size, otherwise scrolling looks awful, because of
// VERTICAL_SCROLLBAR_NEVER strategy
panel.setMinimumSize(panel.getPreferredSize());
return panel;
}
protected JComponent createToolbar() {
JButton add = new CayenneAction.CayenneToolbarButton(null, 1);
add.setText("Add Prefetch");
Icon addIcon = ModelerUtil.buildIcon("icon-plus.png");
add.setIcon(addIcon);
add.setDisabledIcon(FilteredIconFactory.createDisabledIcon(addIcon));
add.addActionListener(e -> {
String prefetch = getSelectedPath();
if (prefetch == null) {
return;
}
addPrefetch(prefetch);
Application.getInstance().getUndoManager().addEdit(new AddPrefetchUndoableEditForSqlTemplate(prefetch, SQLTemplatePrefetchTab.this));
});
JButton remove = new CayenneAction.CayenneToolbarButton(null, 3);
remove.setText("Remove Prefetch");
Icon removeIcon = ModelerUtil.buildIcon("icon-trash.png");
remove.setIcon(removeIcon);
remove.setDisabledIcon(FilteredIconFactory.createDisabledIcon(removeIcon));
remove.addActionListener(e -> {
int selection = table.getSelectedRow();
if (selection < 0) {
return;
}
String prefetch = (String) table.getModel().getValueAt(selection, 0);
removePrefetch(prefetch);
});
JToolBar toolBar = new JToolBar();
toolBar.setBorder(BorderFactory.createEmptyBorder());
toolBar.setFloatable(false);
toolBar.add(add);
toolBar.add(remove);
return toolBar;
}
protected String getSelectedPath() {
Object[] path = browser.getSelectionPath().getPath();
// first item in the path is Entity, so we must have
// at least two elements to constitute a valid ordering path
if (path.length < 2) {
return null;
}
StringBuilder buffer = new StringBuilder();
// attribute or relationships
CayenneMapEntry first = (CayenneMapEntry) path[1];
buffer.append(first.getName());
for (int i = 2; i < path.length; i++) {
CayenneMapEntry pathEntry = (CayenneMapEntry) path[i];
buffer.append(".").append(pathEntry.getName());
}
return buffer.toString();
}
protected TreeModel createBrowserModel(Entity entity) {
EntityTreeModel treeModel = new EntityTreeModel(entity);
treeModel.setFilter(
new EntityTreeFilter() {
public boolean attributeMatch(Object node, Attribute attr) {
return false;
}
public boolean relationshipMatch(Object node, Relationship rel) {
return true;
}
});
return treeModel;
}
protected TableModel createTableModel() {
return new PrefetchModel(sqlTemplate.getPrefetchesMap(), sqlTemplate.getRoot());
}
public void addPrefetch(String prefetch) {
// check if such prefetch already exists
if (!sqlTemplate.getPrefetchesMap().isEmpty() && sqlTemplate.getPrefetchesMap().containsKey(prefetch)) {
return;
}
//default value is joint
sqlTemplate.addPrefetch(prefetch, PrefetchModel.getPrefetchType(SelectQueryPrefetchTab.DISJOINT_BY_ID_PREFETCH_SEMANTICS));
// reset the model, since it is immutable
table.setModel(createTableModel());
setUpPrefetchBox(table.getColumnModel().getColumn(2));
mediator.fireQueryEvent(new QueryEvent(this, sqlTemplate));
}
public void removePrefetch(String prefetch) {
sqlTemplate.removePrefetch(prefetch);
// reset the model, since it is immutable
table.setModel(createTableModel());
setUpPrefetchBox(table.getColumnModel().getColumn(2));
mediator.fireQueryEvent(new QueryEvent(this, sqlTemplate));
}
/**
* Updates split pane divider location in properties
*/
public void propertyChange(PropertyChangeEvent evt) {
if (JSplitPane.DIVIDER_LOCATION_PROPERTY.equals(evt.getPropertyName())) {
int value = (Integer) evt.getNewValue();
Preferences detail = Application.getInstance().getPreferencesNode(this.getClass(), "");
detail.putInt(getDividerLocationProperty(), value);
}
}
/**
* Returns name of a property for divider location.
*/
protected String getDividerLocationProperty() {
return SPLIT_DIVIDER_LOCATION_PROPERTY;
}
}
