package bluej.pkgmgr.dependency;

import bluej.extensions.BDependency.Type;
import bluej.pkgmgr.Package;
import bluej.pkgmgr.target.*;
import threadchecker.OnThread;
import threadchecker.Tag;

import java.util.Properties;




| An "extends" dependency between two (class) targets in a package
|
*
* @author Michael Kolling
 
*/
@OnThread(Tag.FXPlatform)
public class ExtendsDependency extends Dependency{
   @OnThread(Tag.Any)
   
   public ExtendsDependency(Package pkg, DependentTarget from, DependentTarget to)
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{
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super(pkg, from, to);
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}
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public ExtendsDependency(Package pkg)
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{
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this(pkg, null, null);
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}
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@OnThread(Tag.FXPlatform)
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public void save(Properties props, String prefix)
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{
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super.save(props, prefix);
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props.put(prefix + ".type", "ExtendsDependency");     
      }
    
   
   public void remove()
   {
      pkg.removeArrow(this);     
      }
    
   
   public boolean isResizable()
   {        
      return false;     
      }
    
   
   @Override
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@OnThread(Tag.Any)
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public Type getType()
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{
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return Type.EXTENDS;
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}
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@Override
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public boolean isRemovable()
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{
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return true;
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}
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}