AbstractLookup.Pair (NetBeans APIs) - NetBeans API Javadoc 4.1.0

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org.openide.util.lookup
Class AbstractLookup.Pair

java.lang.Object
  org.openide.util.Lookup.Item
      org.openide.util.lookup.AbstractLookup.Pair

Extension to the default lookup item that offers additional information for the data structures use in AbstractLookup

Constructor Summary

protected AbstractLookup.Pair()
          For use by subclasses.

Method Summary

protected abstract boolean creatorOf(Object obj)
          Method that can test whether an instance of a class has been created by this item.

protected abstract boolean instanceOf(Class c)
          Tests whether this item can produce object of class c.

Methods inherited from class org.openide.util.Lookup.Item

getDisplayName, getId, getInstance, getType, toString

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

protected AbstractLookup.Pair()

For use by subclasses.

Method Detail

protected abstract boolean instanceOf(Class c)

Tests whether this item can produce object of class c.

protected abstract boolean creatorOf(Object obj)

Method that can test whether an instance of a class has been created by this item.

Parameters:: obj - the instance
Returns:: if the item has already create an instance and it is the same as obj.