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root/jsr166/jsr166/src/main/java/util/AbstractQueue.java

Comparing jsr166/src/main/java/util/AbstractQueue.java (file contents):
Revision 1.18 by dl, Fri Sep 26 11:37:06 2003 UTC vs.
Revision 1.21 by dl, Sun Oct 19 13:38:29 2003 UTC

#	Line 27 | Line 27 | package java.util;
27		*
28		* @since 1.5
29		* @author Doug Lea
30	+	* @param <E> the type of elements held in this collection
31		*/
32		public abstract class AbstractQueue<E>
33		extends AbstractCollection<E>
#	Line 101 | Line 102 | public abstract class AbstractQueue<E>
102		while (poll() != null)
103		;
104		}
105	+
106	+	/**
107	+	* Adds all of the elements in the specified collection to this
108	+	* queue.  Attempts to addAll of a queue to itself result in
109	+	* <tt>IllegalArgumentException</tt>. Further, the behavior of
110	+	* this operation is undefined if the specified collection is
111	+	* modified while the operation is in progress.
112	+	*
113	+	* <p>This implementation iterates over the specified collection,
114	+	* and adds each element returned by the iterator to this
115	+	* collection, in turn.  A runtime exception encountered while
116	+	* trying to add an element (including, in particular, a
117	+	* <tt>null</tt> element) may result in only some of the elements
118	+	* having been successfully added when the associated exception is
119	+	* thrown.
120	+	*
121	+	* @param c collection whose elements are to be added to this collection.
122	+	* @return <tt>true</tt> if this collection changed as a result of the
123	+	*         call.
124	+	* @throws NullPointerException if the specified collection, or
125	+	* any of its elements are null.
126	+	* @throws IllegalArgumentException if c is this queue.
127	+	*
128	+	* @see #add(Object)
129	+	*/
130	+	public boolean addAll(Collection<? extends E> c) {
131	+	if (c == null)
132	+	throw new NullPointerException();
133	+	if (c == this)
134	+	throw new IllegalArgumentException();
135	+	boolean modified = false;
136	+	Iterator<? extends E> e = c.iterator();
137	+	while (e.hasNext()) {
138	+	if (add(e.next()))
139	+	modified = true;
140	+	}
141	+	return modified;
142	+	}
143	+
144		}

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