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| org.apache.openjpa.lib.util.concurrent</FONT> |
| <BR> |
| Class CopyOnWriteArraySet</H2> |
| <PRE> |
| <A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/lang/Object.html" title="class or interface in java.lang">java.lang.Object</A> |
| <IMG SRC="../../../../../../resources/inherit.gif" ALT="extended by "><A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/util/AbstractCollection.html" title="class or interface in java.util">java.util.AbstractCollection</A><E> |
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| <IMG SRC="../../../../../../resources/inherit.gif" ALT="extended by "><B>org.apache.openjpa.lib.util.concurrent.CopyOnWriteArraySet</B> |
| </PRE> |
| <DL> |
| <DT><B>All Implemented Interfaces:</B> <DD><A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/io/Serializable.html" title="class or interface in java.io">Serializable</A>, <A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/lang/Iterable.html" title="class or interface in java.lang">Iterable</A>, <A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/util/Collection.html" title="class or interface in java.util">Collection</A>, <A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/util/Set.html" title="class or interface in java.util">Set</A></DD> |
| </DL> |
| <HR> |
| <DL> |
| <DT><PRE>public class <B>CopyOnWriteArraySet</B><DT>extends <A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/util/AbstractSet.html" title="class or interface in java.util">AbstractSet</A><DT>implements <A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/io/Serializable.html" title="class or interface in java.io">Serializable</A></DL> |
| </PRE> |
| |
| <P> |
| A <A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/util/Set.html" title="class or interface in java.util"><CODE>Set</CODE></A> that uses an internal <A HREF="../../../../../../org/apache/openjpa/lib/util/concurrent/CopyOnWriteArrayList.html" title="class in org.apache.openjpa.lib.util.concurrent"><CODE>CopyOnWriteArrayList</CODE></A> |
| for all of its operations. Thus, it shares the same basic properties: |
| <ul> |
| <li>It is best suited for applications in which set sizes generally |
| stay small, read-only operations |
| vastly outnumber mutative operations, and you need |
| to prevent interference among threads during traversal. |
| <li>It is thread-safe. |
| <li>Mutative operations(<tt>add</tt>, <tt>set</tt>, <tt>remove</tt>, etc.) |
| are expensive since they usually entail copying the entire underlying array. |
| <li>Iterators do not support the mutative <tt>remove</tt> operation. |
| <li>Traversal via iterators is fast and cannot encounter |
| interference from other threads. Iterators rely on |
| unchanging snapshots of the array at the time the iterators were constructed. |
| </ul> |
| <b>Sample Usage.</b> The following code sketch uses a |
| copy-on-write set to maintain a set of Handler objects that |
| perform some action upon state updates. |
| |
| <pre> class Handler { void handle(); ... } |
| class X { private final CopyOnWriteArraySet<Handler> handlers |
| = new CopyOnWriteArraySet<Handler>(); |
| public void addHandler(Handler h) { handlers.add(h); } |
| private long internalState; |
| private synchronized void changeState() { internalState = ...; } |
| public void update() { changeState(); for (Handler handler : handlers) |
| handler.handle(); } } |
| </pre> This class is a member of the |
| <a href="../../../../../../../guide/collections/index.html"> |
| Java Collections Framework</a>. |
| <P> |
| |
| <P> |
| <DL> |
| <DT><B>Since:</B></DT> |
| <DD>1.5</DD> |
| <DT><B>Author:</B></DT> |
| <DD>Doug Lea</DD> |
| <DT><B>See Also:</B><DD><A HREF="../../../../../../org/apache/openjpa/lib/util/concurrent/CopyOnWriteArrayList.html" title="class in org.apache.openjpa.lib.util.concurrent"><CODE>CopyOnWriteArrayList</CODE></A>, |
| <A HREF="../../../../../../serialized-form.html#org.apache.openjpa.lib.util.concurrent.CopyOnWriteArraySet">Serialized Form</A></DL> |
| <HR> |
| |
| <P> |
| |
| <!-- ======== CONSTRUCTOR SUMMARY ======== --> |
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| </TR> |
| <TR BGCOLOR="white" CLASS="TableRowColor"> |
| <TD><CODE><B><A HREF="../../../../../../org/apache/openjpa/lib/util/concurrent/CopyOnWriteArraySet.html#CopyOnWriteArraySet()">CopyOnWriteArraySet</A></B>()</CODE> |
| |
| <BR> |
| Creates an empty set.</TD> |
| </TR> |
| <TR BGCOLOR="white" CLASS="TableRowColor"> |
| <TD><CODE><B><A HREF="../../../../../../org/apache/openjpa/lib/util/concurrent/CopyOnWriteArraySet.html#CopyOnWriteArraySet(java.util.Collection)">CopyOnWriteArraySet</A></B>(<A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/util/Collection.html" title="class or interface in java.util">Collection</A> c)</CODE> |
| |
| <BR> |
| Creates a set containing all of the elements of the specified collection.</TD> |
| </TR> |
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| <B>Method Summary</B></FONT></TH> |
| </TR> |
| <TR BGCOLOR="white" CLASS="TableRowColor"> |
| <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
| <CODE> boolean</CODE></FONT></TD> |
| <TD><CODE><B><A HREF="../../../../../../org/apache/openjpa/lib/util/concurrent/CopyOnWriteArraySet.html#add(java.lang.Object)">add</A></B>(<A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/lang/Object.html" title="class or interface in java.lang">Object</A> e)</CODE> |
| |
| <BR> |
| Adds the specified element to this set if it is not already present.</TD> |
| </TR> |
| <TR BGCOLOR="white" CLASS="TableRowColor"> |
| <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
| <CODE> boolean</CODE></FONT></TD> |
| <TD><CODE><B><A HREF="../../../../../../org/apache/openjpa/lib/util/concurrent/CopyOnWriteArraySet.html#addAll(java.util.Collection)">addAll</A></B>(<A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/util/Collection.html" title="class or interface in java.util">Collection</A> c)</CODE> |
| |
| <BR> |
| Adds all of the elements in the specified collection to this set if |
| they're not already present.</TD> |
| </TR> |
| <TR BGCOLOR="white" CLASS="TableRowColor"> |
| <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
| <CODE> void</CODE></FONT></TD> |
| <TD><CODE><B><A HREF="../../../../../../org/apache/openjpa/lib/util/concurrent/CopyOnWriteArraySet.html#clear()">clear</A></B>()</CODE> |
| |
| <BR> |
| Removes all of the elements from this set.</TD> |
| </TR> |
| <TR BGCOLOR="white" CLASS="TableRowColor"> |
| <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
| <CODE> boolean</CODE></FONT></TD> |
| <TD><CODE><B><A HREF="../../../../../../org/apache/openjpa/lib/util/concurrent/CopyOnWriteArraySet.html#contains(java.lang.Object)">contains</A></B>(<A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/lang/Object.html" title="class or interface in java.lang">Object</A> o)</CODE> |
| |
| <BR> |
| Returns <tt>true</tt> if this set contains the specified element.</TD> |
| </TR> |
| <TR BGCOLOR="white" CLASS="TableRowColor"> |
| <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
| <CODE> boolean</CODE></FONT></TD> |
| <TD><CODE><B><A HREF="../../../../../../org/apache/openjpa/lib/util/concurrent/CopyOnWriteArraySet.html#containsAll(java.util.Collection)">containsAll</A></B>(<A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/util/Collection.html" title="class or interface in java.util">Collection</A> c)</CODE> |
| |
| <BR> |
| Returns <tt>true</tt> if this set contains all of the elements of the |
| specified collection.</TD> |
| </TR> |
| <TR BGCOLOR="white" CLASS="TableRowColor"> |
| <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
| <CODE> boolean</CODE></FONT></TD> |
| <TD><CODE><B><A HREF="../../../../../../org/apache/openjpa/lib/util/concurrent/CopyOnWriteArraySet.html#equals(java.lang.Object)">equals</A></B>(<A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/lang/Object.html" title="class or interface in java.lang">Object</A> o)</CODE> |
| |
| <BR> |
| Compares the specified object with this set for equality.</TD> |
| </TR> |
| <TR BGCOLOR="white" CLASS="TableRowColor"> |
| <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
| <CODE> boolean</CODE></FONT></TD> |
| <TD><CODE><B><A HREF="../../../../../../org/apache/openjpa/lib/util/concurrent/CopyOnWriteArraySet.html#isEmpty()">isEmpty</A></B>()</CODE> |
| |
| <BR> |
| Returns <tt>true</tt> if this set contains no elements.</TD> |
| </TR> |
| <TR BGCOLOR="white" CLASS="TableRowColor"> |
| <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
| <CODE> <A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/util/Iterator.html" title="class or interface in java.util">Iterator</A></CODE></FONT></TD> |
| <TD><CODE><B><A HREF="../../../../../../org/apache/openjpa/lib/util/concurrent/CopyOnWriteArraySet.html#iterator()">iterator</A></B>()</CODE> |
| |
| <BR> |
| Returns an iterator over the elements contained in this set |
| in the order in which these elements were added.</TD> |
| </TR> |
| <TR BGCOLOR="white" CLASS="TableRowColor"> |
| <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
| <CODE> boolean</CODE></FONT></TD> |
| <TD><CODE><B><A HREF="../../../../../../org/apache/openjpa/lib/util/concurrent/CopyOnWriteArraySet.html#remove(java.lang.Object)">remove</A></B>(<A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/lang/Object.html" title="class or interface in java.lang">Object</A> o)</CODE> |
| |
| <BR> |
| Removes the specified element from this set if it is present.</TD> |
| </TR> |
| <TR BGCOLOR="white" CLASS="TableRowColor"> |
| <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
| <CODE> boolean</CODE></FONT></TD> |
| <TD><CODE><B><A HREF="../../../../../../org/apache/openjpa/lib/util/concurrent/CopyOnWriteArraySet.html#removeAll(java.util.Collection)">removeAll</A></B>(<A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/util/Collection.html" title="class or interface in java.util">Collection</A> c)</CODE> |
| |
| <BR> |
| Removes from this set all of its elements that are contained in the |
| specified collection.</TD> |
| </TR> |
| <TR BGCOLOR="white" CLASS="TableRowColor"> |
| <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
| <CODE> boolean</CODE></FONT></TD> |
| <TD><CODE><B><A HREF="../../../../../../org/apache/openjpa/lib/util/concurrent/CopyOnWriteArraySet.html#retainAll(java.util.Collection)">retainAll</A></B>(<A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/util/Collection.html" title="class or interface in java.util">Collection</A> c)</CODE> |
| |
| <BR> |
| Retains only the elements in this set that are contained in the |
| specified collection.</TD> |
| </TR> |
| <TR BGCOLOR="white" CLASS="TableRowColor"> |
| <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
| <CODE> int</CODE></FONT></TD> |
| <TD><CODE><B><A HREF="../../../../../../org/apache/openjpa/lib/util/concurrent/CopyOnWriteArraySet.html#size()">size</A></B>()</CODE> |
| |
| <BR> |
| Returns the number of elements in this set.</TD> |
| </TR> |
| <TR BGCOLOR="white" CLASS="TableRowColor"> |
| <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
| <CODE> <A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/lang/Object.html" title="class or interface in java.lang">Object</A>[]</CODE></FONT></TD> |
| <TD><CODE><B><A HREF="../../../../../../org/apache/openjpa/lib/util/concurrent/CopyOnWriteArraySet.html#toArray()">toArray</A></B>()</CODE> |
| |
| <BR> |
| Returns an array containing all of the elements in this set.</TD> |
| </TR> |
| <TR BGCOLOR="white" CLASS="TableRowColor"> |
| <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
| <CODE> <A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/lang/Object.html" title="class or interface in java.lang">Object</A>[]</CODE></FONT></TD> |
| <TD><CODE><B><A HREF="../../../../../../org/apache/openjpa/lib/util/concurrent/CopyOnWriteArraySet.html#toArray(java.lang.Object[])">toArray</A></B>(<A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/lang/Object.html" title="class or interface in java.lang">Object</A>[] a)</CODE> |
| |
| <BR> |
| Returns an array containing all of the elements in this set; the |
| runtime type of the returned array is that of the specified array.</TD> |
| </TR> |
| </TABLE> |
| <A NAME="methods_inherited_from_class_java.util.AbstractSet"><!-- --></A> |
| <TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""> |
| <TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor"> |
| <TH ALIGN="left"><B>Methods inherited from class java.util.<A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/util/AbstractSet.html" title="class or interface in java.util">AbstractSet</A></B></TH> |
| </TR> |
| <TR BGCOLOR="white" CLASS="TableRowColor"> |
| <TD><CODE><A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/util/AbstractSet.html#hashCode()" title="class or interface in java.util">hashCode</A></CODE></TD> |
| </TR> |
| </TABLE> |
| <A NAME="methods_inherited_from_class_java.util.AbstractCollection"><!-- --></A> |
| <TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""> |
| <TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor"> |
| <TH ALIGN="left"><B>Methods inherited from class java.util.<A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/util/AbstractCollection.html" title="class or interface in java.util">AbstractCollection</A></B></TH> |
| </TR> |
| <TR BGCOLOR="white" CLASS="TableRowColor"> |
| <TD><CODE><A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/util/AbstractCollection.html#toString()" title="class or interface in java.util">toString</A></CODE></TD> |
| </TR> |
| </TABLE> |
| <A NAME="methods_inherited_from_class_java.lang.Object"><!-- --></A> |
| <TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""> |
| <TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor"> |
| <TH ALIGN="left"><B>Methods inherited from class java.lang.<A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/lang/Object.html" title="class or interface in java.lang">Object</A></B></TH> |
| </TR> |
| <TR BGCOLOR="white" CLASS="TableRowColor"> |
| <TD><CODE><A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/lang/Object.html#clone()" title="class or interface in java.lang">clone</A>, <A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/lang/Object.html#finalize()" title="class or interface in java.lang">finalize</A>, <A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/lang/Object.html#getClass()" title="class or interface in java.lang">getClass</A>, <A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/lang/Object.html#notify()" title="class or interface in java.lang">notify</A>, <A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/lang/Object.html#notifyAll()" title="class or interface in java.lang">notifyAll</A>, <A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/lang/Object.html#wait()" title="class or interface in java.lang">wait</A>, <A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/lang/Object.html#wait(long)" title="class or interface in java.lang">wait</A>, <A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/lang/Object.html#wait(long, int)" title="class or interface in java.lang">wait</A></CODE></TD> |
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| |
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| |
| <!-- ========= CONSTRUCTOR DETAIL ======== --> |
| |
| <A NAME="constructor_detail"><!-- --></A> |
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| <B>Constructor Detail</B></FONT></TH> |
| </TR> |
| </TABLE> |
| |
| <A NAME="CopyOnWriteArraySet()"><!-- --></A><H3> |
| CopyOnWriteArraySet</H3> |
| <PRE> |
| public <B>CopyOnWriteArraySet</B>()</PRE> |
| <DL> |
| <DD>Creates an empty set. |
| <P> |
| </DL> |
| <HR> |
| |
| <A NAME="CopyOnWriteArraySet(java.util.Collection)"><!-- --></A><H3> |
| CopyOnWriteArraySet</H3> |
| <PRE> |
| public <B>CopyOnWriteArraySet</B>(<A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/util/Collection.html" title="class or interface in java.util">Collection</A> c)</PRE> |
| <DL> |
| <DD>Creates a set containing all of the elements of the specified collection. |
| <P> |
| <DL> |
| <DT><B>Parameters:</B><DD><CODE>c</CODE> - the collection of elements to initially contain |
| <DT><B>Throws:</B> |
| <DD><CODE><A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/lang/NullPointerException.html" title="class or interface in java.lang">NullPointerException</A></CODE> - if the specified collection is null</DL> |
| </DL> |
| |
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| <B>Method Detail</B></FONT></TH> |
| </TR> |
| </TABLE> |
| |
| <A NAME="size()"><!-- --></A><H3> |
| size</H3> |
| <PRE> |
| public int <B>size</B>()</PRE> |
| <DL> |
| <DD>Returns the number of elements in this set. |
| <P> |
| <DD><DL> |
| <DT><B>Specified by:</B><DD><CODE><A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/util/Collection.html#size()" title="class or interface in java.util">size</A></CODE> in interface <CODE><A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/util/Collection.html" title="class or interface in java.util">Collection</A></CODE><DT><B>Specified by:</B><DD><CODE><A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/util/Set.html#size()" title="class or interface in java.util">size</A></CODE> in interface <CODE><A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/util/Set.html" title="class or interface in java.util">Set</A></CODE><DT><B>Specified by:</B><DD><CODE><A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/util/AbstractCollection.html#size()" title="class or interface in java.util">size</A></CODE> in class <CODE><A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/util/AbstractCollection.html" title="class or interface in java.util">AbstractCollection</A></CODE></DL> |
| </DD> |
| <DD><DL> |
| |
| <DT><B>Returns:</B><DD>the number of elements in this set</DL> |
| </DD> |
| </DL> |
| <HR> |
| |
| <A NAME="isEmpty()"><!-- --></A><H3> |
| isEmpty</H3> |
| <PRE> |
| public boolean <B>isEmpty</B>()</PRE> |
| <DL> |
| <DD>Returns <tt>true</tt> if this set contains no elements. |
| <P> |
| <DD><DL> |
| <DT><B>Specified by:</B><DD><CODE><A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/util/Collection.html#isEmpty()" title="class or interface in java.util">isEmpty</A></CODE> in interface <CODE><A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/util/Collection.html" title="class or interface in java.util">Collection</A></CODE><DT><B>Specified by:</B><DD><CODE><A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/util/Set.html#isEmpty()" title="class or interface in java.util">isEmpty</A></CODE> in interface <CODE><A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/util/Set.html" title="class or interface in java.util">Set</A></CODE><DT><B>Overrides:</B><DD><CODE><A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/util/AbstractCollection.html#isEmpty()" title="class or interface in java.util">isEmpty</A></CODE> in class <CODE><A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/util/AbstractCollection.html" title="class or interface in java.util">AbstractCollection</A></CODE></DL> |
| </DD> |
| <DD><DL> |
| |
| <DT><B>Returns:</B><DD><tt>true</tt> if this set contains no elements</DL> |
| </DD> |
| </DL> |
| <HR> |
| |
| <A NAME="contains(java.lang.Object)"><!-- --></A><H3> |
| contains</H3> |
| <PRE> |
| public boolean <B>contains</B>(<A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/lang/Object.html" title="class or interface in java.lang">Object</A> o)</PRE> |
| <DL> |
| <DD>Returns <tt>true</tt> if this set contains the specified element. |
| More formally, returns <tt>true</tt> if and only if this set |
| contains an element <tt>e</tt> such that |
| <tt>(o==null ? e==null : o.equals(e))</tt>. |
| <P> |
| <DD><DL> |
| <DT><B>Specified by:</B><DD><CODE><A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/util/Collection.html#contains(java.lang.Object)" title="class or interface in java.util">contains</A></CODE> in interface <CODE><A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/util/Collection.html" title="class or interface in java.util">Collection</A></CODE><DT><B>Specified by:</B><DD><CODE><A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/util/Set.html#contains(java.lang.Object)" title="class or interface in java.util">contains</A></CODE> in interface <CODE><A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/util/Set.html" title="class or interface in java.util">Set</A></CODE><DT><B>Overrides:</B><DD><CODE><A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/util/AbstractCollection.html#contains(java.lang.Object)" title="class or interface in java.util">contains</A></CODE> in class <CODE><A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/util/AbstractCollection.html" title="class or interface in java.util">AbstractCollection</A></CODE></DL> |
| </DD> |
| <DD><DL> |
| <DT><B>Parameters:</B><DD><CODE>o</CODE> - element whose presence in this set is to be tested |
| <DT><B>Returns:</B><DD><tt>true</tt> if this set contains the specified element</DL> |
| </DD> |
| </DL> |
| <HR> |
| |
| <A NAME="toArray()"><!-- --></A><H3> |
| toArray</H3> |
| <PRE> |
| public <A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/lang/Object.html" title="class or interface in java.lang">Object</A>[] <B>toArray</B>()</PRE> |
| <DL> |
| <DD>Returns an array containing all of the elements in this set. |
| If this set makes any guarantees as to what order its elements |
| are returned by its iterator, this method must return the |
| elements in the same order. |
| The returned array will be "safe" in that no references to it |
| are maintained by this set. (In other words, this method must |
| allocate a new array even if this set is backed by an array). |
| The caller is thus free to modify the returned array. |
| This method acts as bridge between array-based and collection-based APIs. |
| <P> |
| <DD><DL> |
| <DT><B>Specified by:</B><DD><CODE><A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/util/Collection.html#toArray()" title="class or interface in java.util">toArray</A></CODE> in interface <CODE><A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/util/Collection.html" title="class or interface in java.util">Collection</A></CODE><DT><B>Specified by:</B><DD><CODE><A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/util/Set.html#toArray()" title="class or interface in java.util">toArray</A></CODE> in interface <CODE><A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/util/Set.html" title="class or interface in java.util">Set</A></CODE></DL> |
| </DD> |
| <DD><DL> |
| |
| <DT><B>Returns:</B><DD>an array containing all the elements in this set</DL> |
| </DD> |
| </DL> |
| <HR> |
| |
| <A NAME="toArray(java.lang.Object[])"><!-- --></A><H3> |
| toArray</H3> |
| <PRE> |
| public <A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/lang/Object.html" title="class or interface in java.lang">Object</A>[] <B>toArray</B>(<A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/lang/Object.html" title="class or interface in java.lang">Object</A>[] a)</PRE> |
| <DL> |
| <DD>Returns an array containing all of the elements in this set; the |
| runtime type of the returned array is that of the specified array. |
| If the set fits in the specified array, it is returned therein. |
| Otherwise, a new array is allocated with the runtime type of the |
| specified array and the size of this set. |
| If this set fits in the specified array with room to spare |
| (i.e., the array has more elements than this set), the element in |
| the array immediately following the end of the set is set to |
| <tt>null</tt>. (This is useful in determining the length of this |
| set <i>only</i> if the caller knows that this set does not contain |
| any null elements.) |
| If this set makes any guarantees as to what order its elements |
| are returned by its iterator, this method must return the elements |
| in the same order. |
| Like the <A HREF="../../../../../../org/apache/openjpa/lib/util/concurrent/CopyOnWriteArraySet.html#toArray()"><CODE>toArray()</CODE></A> method, this method acts as bridge between |
| array-based and collection-based APIs. Further, this method allows |
| precise control over the runtime type of the output array, and may, |
| under certain circumstances, be used to save allocation costs. |
| Suppose <tt>x</tt> is a set known to contain only strings. |
| The following code can be used to dump the set into a newly allocated |
| array of <tt>String</tt>: |
| |
| <pre> String[] y = x.toArray(new String[0]);</pre> |
| Note that <tt>toArray(new Object[0])</tt> is identical in function to |
| <tt>toArray()</tt>. |
| <P> |
| <DD><DL> |
| <DT><B>Specified by:</B><DD><CODE><A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/util/Collection.html#toArray(T[])" title="class or interface in java.util">toArray</A></CODE> in interface <CODE><A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/util/Collection.html" title="class or interface in java.util">Collection</A></CODE><DT><B>Specified by:</B><DD><CODE><A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/util/Set.html#toArray(T[])" title="class or interface in java.util">toArray</A></CODE> in interface <CODE><A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/util/Set.html" title="class or interface in java.util">Set</A></CODE></DL> |
| </DD> |
| <DD><DL> |
| <DT><B>Parameters:</B><DD><CODE>a</CODE> - the array into which the elements of this set are to be |
| stored, if it is big enough; otherwise, a new array of the same |
| runtime type is allocated for this purpose. |
| <DT><B>Returns:</B><DD>an array containing all the elements in this set |
| <DT><B>Throws:</B> |
| <DD><CODE><A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/lang/ArrayStoreException.html" title="class or interface in java.lang">ArrayStoreException</A></CODE> - if the runtime type of the specified array |
| is not a supertype of the runtime type of every element in this set |
| <DD><CODE><A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/lang/NullPointerException.html" title="class or interface in java.lang">NullPointerException</A></CODE> - if the specified array is null</DL> |
| </DD> |
| </DL> |
| <HR> |
| |
| <A NAME="clear()"><!-- --></A><H3> |
| clear</H3> |
| <PRE> |
| public void <B>clear</B>()</PRE> |
| <DL> |
| <DD>Removes all of the elements from this set. |
| The set will be empty after this call returns. |
| <P> |
| <DD><DL> |
| <DT><B>Specified by:</B><DD><CODE><A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/util/Collection.html#clear()" title="class or interface in java.util">clear</A></CODE> in interface <CODE><A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/util/Collection.html" title="class or interface in java.util">Collection</A></CODE><DT><B>Specified by:</B><DD><CODE><A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/util/Set.html#clear()" title="class or interface in java.util">clear</A></CODE> in interface <CODE><A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/util/Set.html" title="class or interface in java.util">Set</A></CODE><DT><B>Overrides:</B><DD><CODE><A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/util/AbstractCollection.html#clear()" title="class or interface in java.util">clear</A></CODE> in class <CODE><A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/util/AbstractCollection.html" title="class or interface in java.util">AbstractCollection</A></CODE></DL> |
| </DD> |
| <DD><DL> |
| </DL> |
| </DD> |
| </DL> |
| <HR> |
| |
| <A NAME="remove(java.lang.Object)"><!-- --></A><H3> |
| remove</H3> |
| <PRE> |
| public boolean <B>remove</B>(<A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/lang/Object.html" title="class or interface in java.lang">Object</A> o)</PRE> |
| <DL> |
| <DD>Removes the specified element from this set if it is present. |
| More formally, removes an element <tt>e</tt> such that |
| <tt>(o==null ? e==null : o.equals(e))</tt>, |
| if this set contains such an element. Returns <tt>true</tt> if |
| this set contained the element(or equivalently, if this set |
| changed as a result of the call). (This set will not contain the |
| element once the call returns.) |
| <P> |
| <DD><DL> |
| <DT><B>Specified by:</B><DD><CODE><A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/util/Collection.html#remove(java.lang.Object)" title="class or interface in java.util">remove</A></CODE> in interface <CODE><A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/util/Collection.html" title="class or interface in java.util">Collection</A></CODE><DT><B>Specified by:</B><DD><CODE><A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/util/Set.html#remove(java.lang.Object)" title="class or interface in java.util">remove</A></CODE> in interface <CODE><A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/util/Set.html" title="class or interface in java.util">Set</A></CODE><DT><B>Overrides:</B><DD><CODE><A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/util/AbstractCollection.html#remove(java.lang.Object)" title="class or interface in java.util">remove</A></CODE> in class <CODE><A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/util/AbstractCollection.html" title="class or interface in java.util">AbstractCollection</A></CODE></DL> |
| </DD> |
| <DD><DL> |
| <DT><B>Parameters:</B><DD><CODE>o</CODE> - object to be removed from this set, if present |
| <DT><B>Returns:</B><DD><tt>true</tt> if this set contained the specified element</DL> |
| </DD> |
| </DL> |
| <HR> |
| |
| <A NAME="add(java.lang.Object)"><!-- --></A><H3> |
| add</H3> |
| <PRE> |
| public boolean <B>add</B>(<A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/lang/Object.html" title="class or interface in java.lang">Object</A> e)</PRE> |
| <DL> |
| <DD>Adds the specified element to this set if it is not already present. |
| More formally, adds the specified element <tt>e</tt> to this set if |
| the set contains no element <tt>e2</tt> such that |
| <tt>(e==null ? e2==null : e.equals(e2))</tt>. |
| If this set already contains the element, the call leaves the set |
| unchanged and returns <tt>false</tt>. |
| <P> |
| <DD><DL> |
| <DT><B>Specified by:</B><DD><CODE><A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/util/Collection.html#add(E)" title="class or interface in java.util">add</A></CODE> in interface <CODE><A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/util/Collection.html" title="class or interface in java.util">Collection</A></CODE><DT><B>Specified by:</B><DD><CODE><A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/util/Set.html#add(E)" title="class or interface in java.util">add</A></CODE> in interface <CODE><A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/util/Set.html" title="class or interface in java.util">Set</A></CODE><DT><B>Overrides:</B><DD><CODE><A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/util/AbstractCollection.html#add(E)" title="class or interface in java.util">add</A></CODE> in class <CODE><A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/util/AbstractCollection.html" title="class or interface in java.util">AbstractCollection</A></CODE></DL> |
| </DD> |
| <DD><DL> |
| <DT><B>Parameters:</B><DD><CODE>e</CODE> - element to be added to this set |
| <DT><B>Returns:</B><DD><tt>true</tt> if this set did not already contain the specified |
| element</DL> |
| </DD> |
| </DL> |
| <HR> |
| |
| <A NAME="containsAll(java.util.Collection)"><!-- --></A><H3> |
| containsAll</H3> |
| <PRE> |
| public boolean <B>containsAll</B>(<A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/util/Collection.html" title="class or interface in java.util">Collection</A> c)</PRE> |
| <DL> |
| <DD>Returns <tt>true</tt> if this set contains all of the elements of the |
| specified collection. If the specified collection is also a set, this |
| method returns <tt>true</tt> if it is a <i>subset</i> of this set. |
| <P> |
| <DD><DL> |
| <DT><B>Specified by:</B><DD><CODE><A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/util/Collection.html#containsAll(java.util.Collection)" title="class or interface in java.util">containsAll</A></CODE> in interface <CODE><A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/util/Collection.html" title="class or interface in java.util">Collection</A></CODE><DT><B>Specified by:</B><DD><CODE><A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/util/Set.html#containsAll(java.util.Collection)" title="class or interface in java.util">containsAll</A></CODE> in interface <CODE><A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/util/Set.html" title="class or interface in java.util">Set</A></CODE><DT><B>Overrides:</B><DD><CODE><A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/util/AbstractCollection.html#containsAll(java.util.Collection)" title="class or interface in java.util">containsAll</A></CODE> in class <CODE><A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/util/AbstractCollection.html" title="class or interface in java.util">AbstractCollection</A></CODE></DL> |
| </DD> |
| <DD><DL> |
| <DT><B>Parameters:</B><DD><CODE>c</CODE> - collection to be checked for containment in this set |
| <DT><B>Returns:</B><DD><tt>true</tt> if this set contains all of the elements of the |
| specified collection |
| <DT><B>Throws:</B> |
| <DD><CODE><A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/lang/NullPointerException.html" title="class or interface in java.lang">NullPointerException</A></CODE> - if the specified collection is null<DT><B>See Also:</B><DD><A HREF="../../../../../../org/apache/openjpa/lib/util/concurrent/CopyOnWriteArraySet.html#contains(java.lang.Object)"><CODE>contains(Object)</CODE></A></DL> |
| </DD> |
| </DL> |
| <HR> |
| |
| <A NAME="addAll(java.util.Collection)"><!-- --></A><H3> |
| addAll</H3> |
| <PRE> |
| public boolean <B>addAll</B>(<A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/util/Collection.html" title="class or interface in java.util">Collection</A> c)</PRE> |
| <DL> |
| <DD>Adds all of the elements in the specified collection to this set if |
| they're not already present. If the specified collection is also a |
| set, the <tt>addAll</tt> operation effectively modifies this set so |
| that its value is the <i>union</i> of the two sets. The behavior of |
| this operation is undefined if the specified collection is modified |
| while the operation is in progress. |
| <P> |
| <DD><DL> |
| <DT><B>Specified by:</B><DD><CODE><A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/util/Collection.html#addAll(java.util.Collection)" title="class or interface in java.util">addAll</A></CODE> in interface <CODE><A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/util/Collection.html" title="class or interface in java.util">Collection</A></CODE><DT><B>Specified by:</B><DD><CODE><A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/util/Set.html#addAll(java.util.Collection)" title="class or interface in java.util">addAll</A></CODE> in interface <CODE><A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/util/Set.html" title="class or interface in java.util">Set</A></CODE><DT><B>Overrides:</B><DD><CODE><A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/util/AbstractCollection.html#addAll(java.util.Collection)" title="class or interface in java.util">addAll</A></CODE> in class <CODE><A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/util/AbstractCollection.html" title="class or interface in java.util">AbstractCollection</A></CODE></DL> |
| </DD> |
| <DD><DL> |
| <DT><B>Parameters:</B><DD><CODE>c</CODE> - collection containing elements to be added to this set |
| <DT><B>Returns:</B><DD><tt>true</tt> if this set changed as a result of the call |
| <DT><B>Throws:</B> |
| <DD><CODE><A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/lang/NullPointerException.html" title="class or interface in java.lang">NullPointerException</A></CODE> - if the specified collection is null<DT><B>See Also:</B><DD><A HREF="../../../../../../org/apache/openjpa/lib/util/concurrent/CopyOnWriteArraySet.html#add(java.lang.Object)"><CODE>add(Object)</CODE></A></DL> |
| </DD> |
| </DL> |
| <HR> |
| |
| <A NAME="removeAll(java.util.Collection)"><!-- --></A><H3> |
| removeAll</H3> |
| <PRE> |
| public boolean <B>removeAll</B>(<A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/util/Collection.html" title="class or interface in java.util">Collection</A> c)</PRE> |
| <DL> |
| <DD>Removes from this set all of its elements that are contained in the |
| specified collection. If the specified collection is also a set, |
| this operation effectively modifies this set so that its value is the |
| <i>asymmetric set difference</i> of the two sets. |
| <P> |
| <DD><DL> |
| <DT><B>Specified by:</B><DD><CODE><A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/util/Collection.html#removeAll(java.util.Collection)" title="class or interface in java.util">removeAll</A></CODE> in interface <CODE><A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/util/Collection.html" title="class or interface in java.util">Collection</A></CODE><DT><B>Specified by:</B><DD><CODE><A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/util/Set.html#removeAll(java.util.Collection)" title="class or interface in java.util">removeAll</A></CODE> in interface <CODE><A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/util/Set.html" title="class or interface in java.util">Set</A></CODE><DT><B>Overrides:</B><DD><CODE><A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/util/AbstractSet.html#removeAll(java.util.Collection)" title="class or interface in java.util">removeAll</A></CODE> in class <CODE><A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/util/AbstractSet.html" title="class or interface in java.util">AbstractSet</A></CODE></DL> |
| </DD> |
| <DD><DL> |
| <DT><B>Parameters:</B><DD><CODE>c</CODE> - collection containing elements to be removed from this set |
| <DT><B>Returns:</B><DD><tt>true</tt> if this set changed as a result of the call |
| <DT><B>Throws:</B> |
| <DD><CODE><A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/lang/ClassCastException.html" title="class or interface in java.lang">ClassCastException</A></CODE> - if the class of an element of this set |
| is incompatible with the specified collection(optional) |
| <DD><CODE><A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/lang/NullPointerException.html" title="class or interface in java.lang">NullPointerException</A></CODE> - if this set contains a null element and the |
| specified collection does not permit null elements(optional), |
| or if the specified collection is null<DT><B>See Also:</B><DD><A HREF="../../../../../../org/apache/openjpa/lib/util/concurrent/CopyOnWriteArraySet.html#remove(java.lang.Object)"><CODE>remove(Object)</CODE></A></DL> |
| </DD> |
| </DL> |
| <HR> |
| |
| <A NAME="retainAll(java.util.Collection)"><!-- --></A><H3> |
| retainAll</H3> |
| <PRE> |
| public boolean <B>retainAll</B>(<A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/util/Collection.html" title="class or interface in java.util">Collection</A> c)</PRE> |
| <DL> |
| <DD>Retains only the elements in this set that are contained in the |
| specified collection. In other words, removes from this set all of |
| its elements that are not contained in the specified collection. If |
| the specified collection is also a set, this operation effectively |
| modifies this set so that its value is the <i>intersection</i> of the |
| two sets. |
| <P> |
| <DD><DL> |
| <DT><B>Specified by:</B><DD><CODE><A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/util/Collection.html#retainAll(java.util.Collection)" title="class or interface in java.util">retainAll</A></CODE> in interface <CODE><A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/util/Collection.html" title="class or interface in java.util">Collection</A></CODE><DT><B>Specified by:</B><DD><CODE><A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/util/Set.html#retainAll(java.util.Collection)" title="class or interface in java.util">retainAll</A></CODE> in interface <CODE><A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/util/Set.html" title="class or interface in java.util">Set</A></CODE><DT><B>Overrides:</B><DD><CODE><A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/util/AbstractCollection.html#retainAll(java.util.Collection)" title="class or interface in java.util">retainAll</A></CODE> in class <CODE><A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/util/AbstractCollection.html" title="class or interface in java.util">AbstractCollection</A></CODE></DL> |
| </DD> |
| <DD><DL> |
| <DT><B>Parameters:</B><DD><CODE>c</CODE> - collection containing elements to be retained in this set |
| <DT><B>Returns:</B><DD><tt>true</tt> if this set changed as a result of the call |
| <DT><B>Throws:</B> |
| <DD><CODE><A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/lang/ClassCastException.html" title="class or interface in java.lang">ClassCastException</A></CODE> - if the class of an element of this set |
| is incompatible with the specified collection(optional) |
| <DD><CODE><A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/lang/NullPointerException.html" title="class or interface in java.lang">NullPointerException</A></CODE> - if this set contains a null element and the |
| specified collection does not permit null elements(optional), |
| or if the specified collection is null<DT><B>See Also:</B><DD><A HREF="../../../../../../org/apache/openjpa/lib/util/concurrent/CopyOnWriteArraySet.html#remove(java.lang.Object)"><CODE>remove(Object)</CODE></A></DL> |
| </DD> |
| </DL> |
| <HR> |
| |
| <A NAME="iterator()"><!-- --></A><H3> |
| iterator</H3> |
| <PRE> |
| public <A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/util/Iterator.html" title="class or interface in java.util">Iterator</A> <B>iterator</B>()</PRE> |
| <DL> |
| <DD>Returns an iterator over the elements contained in this set |
| in the order in which these elements were added. |
| The returned iterator provides a snapshot of the state of the set |
| when the iterator was constructed. No synchronization is needed while |
| traversing the iterator. The iterator does <em>NOT</em> support the |
| <tt>remove</tt> method. |
| <P> |
| <DD><DL> |
| <DT><B>Specified by:</B><DD><CODE><A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/lang/Iterable.html#iterator()" title="class or interface in java.lang">iterator</A></CODE> in interface <CODE><A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/lang/Iterable.html" title="class or interface in java.lang">Iterable</A></CODE><DT><B>Specified by:</B><DD><CODE><A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/util/Collection.html#iterator()" title="class or interface in java.util">iterator</A></CODE> in interface <CODE><A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/util/Collection.html" title="class or interface in java.util">Collection</A></CODE><DT><B>Specified by:</B><DD><CODE><A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/util/Set.html#iterator()" title="class or interface in java.util">iterator</A></CODE> in interface <CODE><A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/util/Set.html" title="class or interface in java.util">Set</A></CODE><DT><B>Specified by:</B><DD><CODE><A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/util/AbstractCollection.html#iterator()" title="class or interface in java.util">iterator</A></CODE> in class <CODE><A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/util/AbstractCollection.html" title="class or interface in java.util">AbstractCollection</A></CODE></DL> |
| </DD> |
| <DD><DL> |
| |
| <DT><B>Returns:</B><DD>an iterator over the elements in this set</DL> |
| </DD> |
| </DL> |
| <HR> |
| |
| <A NAME="equals(java.lang.Object)"><!-- --></A><H3> |
| equals</H3> |
| <PRE> |
| public boolean <B>equals</B>(<A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/lang/Object.html" title="class or interface in java.lang">Object</A> o)</PRE> |
| <DL> |
| <DD>Compares the specified object with this set for equality. |
| Returns <code>true</code> if the specified object is the same object |
| as this object, or if it is also a <A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/util/Set.html" title="class or interface in java.util"><CODE>Set</CODE></A> and the elements |
| returned by an <A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/util/List.html#iterator()" title="class or interface in java.util">iterator</A> over the |
| specified set are the same as the elements returned by an |
| iterator over this set. More formally, the two iterators are |
| considered to return the same elements if they return the same |
| number of elements and for every element <code>e1</code> returned by |
| the iterator over the specified set, there is an element |
| <code>e2</code> returned by the iterator over this set such that |
| . |
| <P> |
| <DD><DL> |
| <DT><B>Specified by:</B><DD><CODE><A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/util/Collection.html#equals(java.lang.Object)" title="class or interface in java.util">equals</A></CODE> in interface <CODE><A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/util/Collection.html" title="class or interface in java.util">Collection</A></CODE><DT><B>Specified by:</B><DD><CODE><A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/util/Set.html#equals(java.lang.Object)" title="class or interface in java.util">equals</A></CODE> in interface <CODE><A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/util/Set.html" title="class or interface in java.util">Set</A></CODE><DT><B>Overrides:</B><DD><CODE><A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/util/AbstractSet.html#equals(java.lang.Object)" title="class or interface in java.util">equals</A></CODE> in class <CODE><A HREF="http://java.sun.com/j2se/1.5.0/docs/api/java/util/AbstractSet.html" title="class or interface in java.util">AbstractSet</A></CODE></DL> |
| </DD> |
| <DD><DL> |
| <DT><B>Parameters:</B><DD><CODE>o</CODE> - object to be compared for equality with this set |
| <DT><B>Returns:</B><DD><code>true</code> if the specified object is equal to this set</DL> |
| </DD> |
| </DL> |
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