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Buffer (Jakarta Commons Collections Package)
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org.apache.commons.collections</FONT>
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Interface Buffer</H2>
<DL>
<DT><B>All Superinterfaces:</B> <DD>java.util.Collection, java.lang.Iterable</DD>
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<DL>
<DT><B>All Known Implementing Classes:</B> <DD><A HREF="../../../../org/apache/commons/collections/ArrayStack.html" title="class in org.apache.commons.collections">ArrayStack</A>, <A HREF="../../../../org/apache/commons/collections/BinaryHeap.html" title="class in org.apache.commons.collections">BinaryHeap</A>, <A HREF="../../../../org/apache/commons/collections/BoundedFifoBuffer.html" title="class in org.apache.commons.collections">BoundedFifoBuffer</A>, <A HREF="../../../../org/apache/commons/collections/UnboundedFifoBuffer.html" title="class in org.apache.commons.collections">UnboundedFifoBuffer</A></DD>
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<DT><PRE>public interface <B>Buffer</B><DT>extends java.util.Collection</DL>
</PRE>
<P>
A Buffer is a collection that allows objects to be removed in some
well-defined order. The removal order can be based on insertion order
(eg, a FIFO queue or a LIFO stack), on access order (eg, an LRU cache),
on some arbitrary comparator (eg, a priority queue) or on any other
well-defined ordering.<P>
Note that the removal order is not necessarily the same as the iteration
order. A <Code>Buffer</Code> implementation may have equivalent removal
and iteration orders, but this is not required.<P>
This interface does not specify any behavior for
<CODE>Object.equals(Object)</CODE> and <CODE>Object.hashCode()</CODE> methods. It
is therefore possible for a <Code>Buffer</Code> implementation to also
also implement <CODE>List</CODE>, <CODE>Set</CODE> or
<A HREF="../../../../org/apache/commons/collections/Bag.html" title="interface in org.apache.commons.collections"><CODE>Bag</CODE></A>.
<P>
<P>
<DL>
<DT><B>Since:</B></DT>
<DD>2.1</DD>
<DT><B>Version:</B></DT>
<DD>$Id: Buffer.java,v 1.3.2.1 2004/05/22 12:14:01 scolebourne Exp $</DD>
<DT><B>Author:</B></DT>
<DD>Avalon, <a href="bloritsch@apache.org">Berin Loritsch</a>, Paul Jack, Stephen Colebourne</DD>
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<CODE> java.lang.Object</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../org/apache/commons/collections/Buffer.html#get()">get</A></B>()</CODE>
<BR>
Returns the next object in the buffer without removing it.</TD>
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<CODE> java.lang.Object</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../org/apache/commons/collections/Buffer.html#remove()">remove</A></B>()</CODE>
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Removes the next object from the buffer.</TD>
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<TH ALIGN="left"><B>Methods inherited from interface java.util.Collection</B></TH>
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<TD><CODE>add, addAll, clear, contains, containsAll, equals, hashCode, isEmpty, iterator, remove, removeAll, retainAll, size, toArray, toArray</CODE></TD>
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<A NAME="get()"><!-- --></A><H3>
get</H3>
<PRE>
java.lang.Object <B>get</B>()</PRE>
<DL>
<DD>Returns the next object in the buffer without removing it.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Returns:</B><DD>the next object in the buffer
<DT><B>Throws:</B>
<DD><CODE><A HREF="../../../../org/apache/commons/collections/BufferUnderflowException.html" title="class in org.apache.commons.collections">BufferUnderflowException</A></CODE> - if the buffer is empty</DL>
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remove</H3>
<PRE>
java.lang.Object <B>remove</B>()</PRE>
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<DD>Removes the next object from the buffer.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Returns:</B><DD>the removed object
<DT><B>Throws:</B>
<DD><CODE><A HREF="../../../../org/apache/commons/collections/BufferUnderflowException.html" title="class in org.apache.commons.collections">BufferUnderflowException</A></CODE> - if the buffer is already empty</DL>
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