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/*
Wotonomy: OpenStep design patterns for pure Java applications.
Copyright (C) 2001 Intersect Software Corporation
This library 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 2.1 of the License, or (at your option) any later version.
This library 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 this library; if not, see http://www.gnu.org
*/
package net.wotonomy.ui;
import java.util.List;
import net.wotonomy.control.EODataSource;
import net.wotonomy.foundation.NSArray;
import net.wotonomy.foundation.NSNotification;
/**
* A display group delegate that prints messages for each of the delegate
* methods.
*
* @author michael@mpowers.net
* @author $Author: cgruber $
* @version $Revision: 904 $
*/
public class DebuggingDelegate implements EODisplayGroup.Delegate {
/**
* Called when the specified data source fails to create an object for the
* specified display group.
*/
public void displayGroupCreateObjectFailed(EODisplayGroup aDisplayGroup, EODataSource aDataSource) {
report("displayGroupCreateObjectFailed", aDisplayGroup, new Object[] { aDataSource });
}
/**
* Called after the specified display group's data source is changed.
*/
public void displayGroupDidChangeDataSource(EODisplayGroup aDisplayGroup) {
report("displayGroupDidChangeDataSource", aDisplayGroup, new Object[] {});
}
/**
* Called after the specified display group's selection has changed.
*/
public void displayGroupDidChangeSelectedObjects(EODisplayGroup aDisplayGroup) {
report("displayGroupDidChangeSelectedObjects", aDisplayGroup, new Object[] {});
}
/**
* Called after the specified display group's selection has changed.
*/
public void displayGroupDidChangeSelection(EODisplayGroup aDisplayGroup) {
report("displayGroupDidChangeSelection", aDisplayGroup, new Object[] {});
}
/**
* Called after the specified object display group's selection has changed.
*/
public void displayGroupDidDeleteObject(EODisplayGroup aDisplayGroup, Object anObject) {
report("displayGroupDidDeleteObject", aDisplayGroup, new Object[] { anObject });
}
/**
* Called after the specified display group has fetched the specified object
* list.
*/
public void displayGroupDidFetchObjects(EODisplayGroup aDisplayGroup, List anObjectList) {
report("displayGroupDidFetchObjects", aDisplayGroup, new Object[] { anObjectList });
}
/**
* Called after the specified display group has inserted the specified object
* into its internal object list.
*/
public void displayGroupDidInsertObject(EODisplayGroup aDisplayGroup, Object anObject) {
report("displayGroupDidInsertObject", aDisplayGroup, new Object[] { anObject });
}
/**
* Called after the specified display group has set the specified value for the
* specified object and key.
*/
public void displayGroupDidSetValueForObject(EODisplayGroup aDisplayGroup, Object aValue, Object anObject,
String aKey) {
report("displayGroupDidSetValueForObject", aDisplayGroup, new Object[] { aValue, anObject, aKey });
}
/**
* Called by the specified display group to determine what objects should be
* displayed for the objects in the specified list.
*
* @return An NSArray containing the objects to be displayed for the objects in
* the specified list.
*/
public <T> NSArray<T> displayGroupDisplayArrayForObjects(EODisplayGroup aDisplayGroup, List<T> aList) {
return get("displayGroupDisplayArrayForObjects", aDisplayGroup, aList);
}
/**
* Called by the specified display group before it attempts to change the
* selection. This implementation returns true.
*
* @return True to allow the selection to change, false otherwise.
*/
public boolean displayGroupShouldChangeSelection(EODisplayGroup aDisplayGroup, List aSelectionList) {
return ask("displayGroupShouldChangeSelection", aDisplayGroup, new Object[] { aSelectionList });
}
/**
* Called by the specified display group before it attempts to delete the
* specified object. This implementation returns true.
*
* @return True to allow the object to be deleted false to prevent the deletion.
*/
public boolean displayGroupShouldDeleteObject(EODisplayGroup aDisplayGroup, Object anObject) {
return ask("displayGroupShouldDeleteObject", aDisplayGroup, new Object[] { anObject });
}
/**
* Called by the specified display group before it attempts display the
* specified alert to the user. This implementation returns true.
*
* @return True to allow the message to be displayed, false if you want to
* handle the alert yourself and suppress the display group's
* notification.
*/
public boolean displayGroupShouldDisplayAlert(EODisplayGroup aDisplayGroup, String aTitle, String aMessage) {
return ask("displayGroupShouldDisplayAlert", aDisplayGroup, new Object[] { aTitle, aMessage });
}
/**
* Called by the specified display group before it attempts fetch objects. This
* implementation returns true.
*
* @return True to allow the fetch to take place, false to prevent the fetch.
*/
public boolean displayGroupShouldFetch(EODisplayGroup aDisplayGroup) {
return ask("displayGroupShouldFetch", aDisplayGroup, new Object[] {});
}
/**
* Called by the specified display group before it attempts to insert the
* specified object. This implementation returns true.
*
* @return True to allow the object to be inserted false to prevent the
* insertion.
*/
public boolean displayGroupShouldInsertObject(EODisplayGroup aDisplayGroup, Object anObject, int anIndex) {
return ask("displayGroupShouldInsertObject", aDisplayGroup, new Object[] { anObject, Integer.valueOf(anIndex) });
}
/**
* No idea what this might indicate, nor what the notification indicates. This
* implementation returns true.
*/
public boolean displayGroupShouldRedisplay(EODisplayGroup aDisplayGroup, NSNotification aNotification) {
return ask("displayGroupShouldRedisplay", aDisplayGroup, new Object[] { aNotification });
}
/**
* No idea what this might indicate, nor what the notification indicates.
*/
public boolean displayGroupShouldRefetch(EODisplayGroup aDisplayGroup, NSNotification aNotification) {
return ask("displayGroupShouldRefetch", aDisplayGroup, new Object[] { aNotification });
}
/**
* This method is called by all delegate methods that return void. This
* implementation calls System.out.println. Override to customize or replace the
* output.
*/
protected void report(String aTitle, EODisplayGroup aDisplayGroup, Object[] aParameterArray) {
String result = aTitle + " : " + aDisplayGroup;
for (int i = 0; i < aParameterArray.length; i++) {
result += " : " + aParameterArray[i];
}
System.out.println(result);
}
/**
* This method is called by displayGroupDisplayArrayForObjects. This
* implementation calls report and returns a copy of the specified list.
*/
protected <T> NSArray<T> get(String aTitle, EODisplayGroup aDisplayGroup, List<T> anObjectList) {
report(aTitle, aDisplayGroup, new Object[] { anObjectList });
return new NSArray<>(anObjectList);
}
/**
* This method is called by the methods that return a boolean. This
* implementation calls report and return true.
*/
protected boolean ask(String aTitle, EODisplayGroup aDisplayGroup, Object[] aParameterArray) {
report(aTitle, aDisplayGroup, aParameterArray);
return true;
}
}
/*
* $Log$ Revision 1.2 2006/02/18 23:14:35 cgruber Update imports and maven
* dependencies.
*
* Revision 1.1 2006/02/16 13:22:22 cgruber Check in all sources in
* eclipse-friendly maven-enabled packages.
*
* Revision 1.2 2003/08/06 23:07:52 chochos general code cleanup (mostly,
* removing unused imports)
*
* Revision 1.1 2001/01/24 14:37:24 mpowers Contributing a delegate useful for
* debugging.
*
*
*/
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