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package org.apache.cayenne.modeler.action;
import java.awt.event.ActionEvent;
import org.apache.cayenne.configuration.ConfigurationNode;
import org.apache.cayenne.configuration.DataChannelDescriptor;
import org.apache.cayenne.map.Attribute;
import org.apache.cayenne.map.DataMap;
import org.apache.cayenne.map.DbAttribute;
import org.apache.cayenne.map.DbEntity;
import org.apache.cayenne.map.Embeddable;
import org.apache.cayenne.map.EmbeddableAttribute;
import org.apache.cayenne.map.ObjAttribute;
import org.apache.cayenne.map.ObjEntity;
import org.apache.cayenne.map.event.AttributeEvent;
import org.apache.cayenne.map.event.EmbeddableAttributeEvent;
import org.apache.cayenne.map.event.MapEvent;
import org.apache.cayenne.modeler.Application;
import org.apache.cayenne.modeler.ProjectController;
import org.apache.cayenne.modeler.dialog.ConfirmRemoveDialog;
import org.apache.cayenne.modeler.undo.RemoveAttributeUndoableEdit;
import org.apache.cayenne.modeler.util.ProjectUtil;
/**
* Removes currently selected attribute from either the DbEntity or ObjEntity.
*
*/
public class RemoveAttributeAction extends RemoveAction implements MultipleObjectsAction {
private final static String ACTION_NAME = "Remove Attribute";
/**
* Name of action if multiple rels are selected
*/
private final static String ACTION_NAME_MULTIPLE = "Remove Attributes";
public static String getActionName() {
return ACTION_NAME;
}
public String getActionName(boolean multiple) {
return multiple ? ACTION_NAME_MULTIPLE : ACTION_NAME;
}
public RemoveAttributeAction(Application application) {
super(ACTION_NAME, application);
}
/**
* Returns true if last object in the path contains a removable
* attribute.
*/
@Override
public boolean enableForPath(ConfigurationNode object) {
if (object == null) {
return false;
}
return object instanceof Attribute;
}
@Override
public void performAction(ActionEvent e, boolean allowAsking) {
ConfirmRemoveDialog dialog = getConfirmDeleteDialog(allowAsking);
ProjectController mediator = getProjectController();
EmbeddableAttribute[] embAttrs = getProjectController().getCurrentEmbAttrs();
ObjAttribute[] attrs = getProjectController().getCurrentObjAttributes();
if (embAttrs != null && embAttrs.length > 0) {
if ((embAttrs.length == 1 && dialog.shouldDelete(
"Embeddable Attribute",
embAttrs[0].getName()))
|| (embAttrs.length > 1 && dialog
.shouldDelete("selected EmbAttributes"))) {
Embeddable embeddable = mediator.getCurrentEmbeddable();
EmbeddableAttribute[] eAttrs = getProjectController()
.getCurrentEmbAttrs();
application.getUndoManager().addEdit(
new RemoveAttributeUndoableEdit(embeddable, eAttrs));
removeEmbeddableAttributes(embeddable, eAttrs);
}
}
else if (attrs != null && attrs.length > 0) {
if ((attrs.length == 1 && dialog.shouldDelete("ObjAttribute", attrs[0]
.getName()))
|| (attrs.length > 1 && dialog.shouldDelete("selected ObjAttributes"))) {
ObjEntity entity = mediator.getCurrentObjEntity();
ObjAttribute[] attribs = mediator.getCurrentObjAttributes();
application.getUndoManager().addEdit(
new RemoveAttributeUndoableEdit(
(DataChannelDescriptor)mediator.getProject().getRootNode(),
mediator.getCurrentDataMap(),
entity,
attribs));
removeObjAttributes(entity, attribs);
}
}
else {
DbAttribute[] dbAttrs = getProjectController().getCurrentDbAttributes();
if (dbAttrs != null && dbAttrs.length > 0) {
if ((dbAttrs.length == 1 && dialog.shouldDelete("DbAttribute", dbAttrs[0]
.getName()))
|| (dbAttrs.length > 1 && dialog
.shouldDelete("selected DbAttributes"))) {
DbEntity entity = mediator.getCurrentDbEntity();
DbAttribute[] attribs = mediator.getCurrentDbAttributes();
application.getUndoManager().addEdit(
new RemoveAttributeUndoableEdit(
(DataChannelDescriptor)mediator.getProject().getRootNode(),
mediator.getCurrentDataMap(),
entity,
attribs));
removeDbAttributes(mediator.getCurrentDataMap(), entity, attribs);
}
}
}
}
public void removeDbAttributes(DataMap dataMap, DbEntity entity, DbAttribute[] attribs) {
ProjectController mediator = getProjectController();
for (DbAttribute attrib : attribs) {
entity.removeAttribute(attrib.getName());
AttributeEvent e = new AttributeEvent(
Application.getFrame(),
attrib,
entity,
MapEvent.REMOVE);
mediator.fireDbAttributeEvent(e);
}
ProjectUtil.cleanObjMappings(dataMap);
}
public void removeObjAttributes(ObjEntity entity, ObjAttribute[] attribs) {
ProjectController mediator = getProjectController();
for (ObjAttribute attrib : attribs) {
entity.removeAttribute(attrib.getName());
AttributeEvent e = new AttributeEvent(
Application.getFrame(),
attrib,
entity,
MapEvent.REMOVE);
mediator.fireObjAttributeEvent(e);
}
}
public void removeEmbeddableAttributes(
Embeddable embeddable,
EmbeddableAttribute[] attrs) {
ProjectController mediator = getProjectController();
for (EmbeddableAttribute attrib : attrs) {
embeddable.removeAttribute(attrib.getName());
EmbeddableAttributeEvent e = new EmbeddableAttributeEvent(Application
.getFrame(), attrib, embeddable, MapEvent.REMOVE);
mediator.fireEmbeddableAttributeEvent(e);
}
}
}