&nbsp;<A NAME="methods_inherited_from_class_structure.AbstractIterator"><!-- --></A><TABLE BORDER="1" CELLPADDING="3" CELLSPACING="0" WIDTH="100%"><TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor"><TD><B>Methods inherited from class structure.<A HREF="../structure/AbstractIterator.html">AbstractIterator</A></B></TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><CODE><A HREF="../structure/AbstractIterator.html#hasMoreElements()">hasMoreElements</A>, <A HREF="../structure/AbstractIterator.html#nextElement()">nextElement</A>, <A HREF="../structure/AbstractIterator.html#remove()">remove</A>, <A HREF="../structure/AbstractIterator.html#value()">value</A></CODE></TD></TR></TABLE>&nbsp;<A NAME="methods_inherited_from_class_java.lang.Object"><!-- --></A><TABLE BORDER="1" CELLPADDING="3" CELLSPACING="0" WIDTH="100%"><TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor"><TD><B>Methods inherited from class java.lang.<A HREF="http://java.sun.com/j2se/1.3/docs/api/java/lang/Object.html">Object</A></B></TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><CODE><A HREF="http://java.sun.com/j2se/1.3/docs/api/java/lang/Object.html#<clinit>()"><clinit></A>, <A HREF="http://java.sun.com/j2se/1.3/docs/api/java/lang/Object.html#clone()">clone</A>, <A HREF="http://java.sun.com/j2se/1.3/docs/api/java/lang/Object.html#equals(java.lang.Object)">equals</A>, <A HREF="http://java.sun.com/j2se/1.3/docs/api/java/lang/Object.html#finalize()">finalize</A>, <A HREF="http://java.sun.com/j2se/1.3/docs/api/java/lang/Object.html#getClass()">getClass</A>, <A HREF="http://java.sun.com/j2se/1.3/docs/api/java/lang/Object.html#hashCode()">hashCode</A>, <A HREF="http://java.sun.com/j2se/1.3/docs/api/java/lang/Object.html#notify()">notify</A>, <A HREF="http://java.sun.com/j2se/1.3/docs/api/java/lang/Object.html#notifyAll()">notifyAll</A>, <A HREF="http://java.sun.com/j2se/1.3/docs/api/java/lang/Object.html#registerNatives()">registerNatives</A>, <A HREF="http://java.sun.com/j2se/1.3/docs/api/java/lang/Object.html#toString()">toString</A>, <A HREF="http://java.sun.com/j2se/1.3/docs/api/java/lang/Object.html#wait()">wait</A>, <A HREF="http://java.sun.com/j2se/1.3/docs/api/java/lang/Object.html#wait(long)">wait</A>, <A HREF="http://java.sun.com/j2se/1.3/docs/api/java/lang/Object.html#wait(long, int)">wait</A></CODE></TD></TR></TABLE>&nbsp;<P><!-- ============ FIELD DETAIL =========== --><A NAME="field_detail"><!-- --></A><TABLE BORDER="1" CELLPADDING="3" CELLSPACING="0" WIDTH="100%"><TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"><TD COLSPAN=1><FONT SIZE="+2"><B>Field Detail</B></FONT></TD></TR></TABLE><A NAME="slave"><!-- --></A><H3>slave</H3><PRE>protected <A HREF="http://java.sun.com/j2se/1.3/docs/api/java/util/Iterator.html">Iterator</A> <B>slave</B></PRE><DL><DD>The underlying iterator. The slave iterator provides the key iterator values which are Associations.  The key iterator returns only the key-portion of the Associations.</DL><!-- ========= CONSTRUCTOR DETAIL ======== --><A NAME="constructor_detail"><!-- --></A><TABLE BORDER="1" CELLPADDING="3" CELLSPACING="0" WIDTH="100%"><TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"><TD COLSPAN=1><FONT SIZE="+2"><B>Constructor Detail</B></FONT></TD></TR></TABLE><A NAME="KeyIterator(java.util.Iterator)"><!-- --></A><H3>KeyIterator</H3><PRE>public <B>KeyIterator</B>(<A HREF="http://java.sun.com/j2se/1.3/docs/api/java/util/Iterator.html">Iterator</A>&nbsp;slave)</PRE><DL><DD>Construct a new key iterator that filters the slave iterator, an Association-returning iterator.<DD><DL><DT><B>Parameters:</B><DD><CODE>slave</CODE> - The slave iterator.</DL></DD></DL><!-- ============ METHOD DETAIL ========== --><A NAME="method_detail"><!-- --></A><TABLE BORDER="1" CELLPADDING="3" CELLSPACING="0" WIDTH="100%"><TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"><TD COLSPAN=1><FONT SIZE="+2"><B>Method Detail</B></FONT></TD></TR></TABLE><A NAME="reset()"><!-- --></A><H3>reset</H3><PRE>public void <B>reset</B>()</PRE><DL><DD>Resets the slave iterator (and thus the key iterator) to the first association in the structure.<DD><DL><DT><B>Overrides:</B><DD><CODE><A HREF="../structure/AbstractIterator.html#reset()">reset</A></CODE> in class <CODE><A HREF="../structure/AbstractIterator.html">AbstractIterator</A></CODE></DL></DD><DD><DL><DT><B>Postcondition:</B><DD>resets iterator to point to first key</DL></DD></DL><HR><A NAME="hasNext()"><!-- --></A><H3>hasNext</H3><PRE>public boolean <B>hasNext</B>()</PRE><DL><DD>Returns true if an association is available for generating a key.<DD><DL><DT><B>Overrides:</B><DD><CODE><A HREF="../structure/AbstractIterator.html#hasNext()">hasNext</A></CODE> in class <CODE><A HREF="../structure/AbstractIterator.html">AbstractIterator</A></CODE></DL></DD><DD><DL><DT><B>Postcondition:</B><DD>returns true if current element is valid<DT><B>Returns:</B><DD>True if a valid key can be generated.</DL></DD></DL><HR><A NAME="next()"><!-- --></A><H3>next</H3><PRE>public <A HREF="http://java.sun.com/j2se/1.3/docs/api/java/lang/Object.html">Object</A> <B>next</B>()</PRE><DL><DD>Returns the current key, and increments the iterator.<DD><DL><DT><B>Overrides:</B><DD><CODE><A HREF="../structure/AbstractIterator.html#next()">next</A></CODE> in class <CODE><A HREF="../structure/AbstractIterator.html">AbstractIterator</A></CODE></DL></DD><DD><DL><DT><B>Precondition:</B><DD>hasNext()<DT><B>Postcondition:</B><DD>returns current value and increments iterator<DT><B>Returns:</B><DD>The current key, before iterator is incremented.</DL></DD></DL><HR><A NAME="get()"><!-- --></A><H3>get</H3><PRE>public <A HREF="http://java.sun.com/j2se/1.3/docs/api/java/lang/Object.html">Object</A> <B>get</B>()</PRE><DL><DD>Returns the current key from the slave iterator.<DD><DL><DT><B>Overrides:</B><DD><CODE><A HREF="../structure/AbstractIterator.html#get()">get</A></CODE> in class <CODE><A HREF="../structure/AbstractIterator.html">AbstractIterator</A></CODE></DL></DD><DD><DL><DT><B>Precondition:</B><DD>current value is valid<DT><B>Postcondition:</B><DD>returns current value<DT><B>Returns:</B><DD>The current key associated with the iterator.</DL></DD></DL><!-- ========= END OF CLASS DATA ========= --><HR><!-- ========== START OF NAVBAR ========== --><A NAME="navbar_bottom"><!-- --></A><TABLE BORDER="0" WIDTH="100%" CELLPADDING="1" CELLSPACING="0"><TR><TD COLSPAN=2 BGCOLOR="#EEEEFF" CLASS="NavBarCell1"><A NAME="navbar_bottom_firstrow"><!-- --></A><TABLE BORDER="0" CELLPADDING="0" CELLSPACING="3">  <TR ALIGN="center" VALIGN="top">  <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1">    <A HREF="package-summary.html"><FONT CLASS="NavBarFont1"><B>Package</B></FONT></A>&nbsp;</TD>  <TD BGCOLOR="#FFFFFF" CLASS="NavBarCell1Rev"> &nbsp;<FONT CLASS="NavBarFont1Rev"><B>Class</B></FONT>&nbsp;</TD>  <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1">    <A HREF="package-tree.html"><FONT CLASS="NavBarFont1"><B>Tree</B></FONT></A>&nbsp;</TD>  <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1">    <A HREF="../deprecated-list.html"><FONT CLASS="NavBarFont1"><B>Deprecated</B></FONT></A>&nbsp;</TD>  <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1">    <A HREF="../index-all.html"><FONT CLASS="NavBarFont1"><B>Index</B></FONT></A>&nbsp;</TD>  <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1">    <A HREF="../help-doc.html"><FONT CLASS="NavBarFont1"><B>Help</B></FONT></A>&nbsp;</TD>  </TR></TABLE></TD><TD ALIGN="right" VALIGN="top" ROWSPAN=3><EM><a href=../copyright.html target=_top>&copy; 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