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DTMNodeIterator | |
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org.apache.xml.dtm.ref</FONT> | |
<BR> | |
Class DTMNodeIterator</H2> | |
<PRE> | |
java.lang.Object | |
<IMG SRC="../../../../../resources/inherit.gif" ALT="extended by "><B>org.apache.xml.dtm.ref.DTMNodeIterator</B> | |
</PRE> | |
<DL> | |
<DT><B>All Implemented Interfaces:</B> <DD>org.w3c.dom.traversal.NodeIterator</DD> | |
</DL> | |
<HR> | |
<DL> | |
<DT><PRE>public class <A HREF="../../../../../src-html/org/apache/xml/dtm/ref/DTMNodeIterator.html#line.59"><B>DTMNodeIterator</B></A><DT>extends java.lang.Object<DT>implements org.w3c.dom.traversal.NodeIterator</DL> | |
</PRE> | |
<P> | |
<code>DTMNodeIterator</code> gives us an implementation of the | |
DTMNodeIterator which returns DOM nodes. | |
Please note that this is not necessarily equivlaent to a DOM | |
NodeIterator operating over the same document. In particular: | |
<ul> | |
<li>If there are several Text nodes in logical succession (ie, | |
across CDATASection and EntityReference boundaries), we will return | |
only the first; the caller is responsible for stepping through | |
them. | |
(%REVIEW% Provide a convenience routine here to assist, pending | |
proposed DOM Level 3 getAdjacentText() operation?) </li> | |
<li>Since the whole XPath/XSLT architecture assumes that the source | |
document is not altered while we're working with it, we do not | |
promise to implement the DOM NodeIterator's "maintain current | |
position" response to document mutation. </li> | |
<li>Since our design for XPath NodeIterators builds a stateful | |
filter directly into the traversal object, getNodeFilter() is not | |
supported.</li> | |
</ul> | |
<p>State: In progress!!</p> | |
<P> | |
<P> | |
<HR> | |
<P> | |
<!-- =========== FIELD SUMMARY =========== --> | |
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<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> | |
<CODE>private <A HREF="../../../../../org/apache/xml/dtm/DTMIterator.html" title="interface in org.apache.xml.dtm">DTMIterator</A></CODE></FONT></TD> | |
<TD><CODE><B><A HREF="../../../../../org/apache/xml/dtm/ref/DTMNodeIterator.html#dtm_iter">dtm_iter</A></B></CODE> | |
<BR> | |
</TD> | |
</TR> | |
<TR BGCOLOR="white" CLASS="TableRowColor"> | |
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> | |
<CODE>private boolean</CODE></FONT></TD> | |
<TD><CODE><B><A HREF="../../../../../org/apache/xml/dtm/ref/DTMNodeIterator.html#valid">valid</A></B></CODE> | |
<BR> | |
</TD> | |
</TR> | |
</TABLE> | |
| |
<!-- ======== CONSTRUCTOR SUMMARY ======== --> | |
<A NAME="constructor_summary"><!-- --></A> | |
<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""> | |
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<B>Constructor Summary</B></FONT></TH> | |
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<TR BGCOLOR="white" CLASS="TableRowColor"> | |
<TD><CODE><B><A HREF="../../../../../org/apache/xml/dtm/ref/DTMNodeIterator.html#DTMNodeIterator(org.apache.xml.dtm.DTMIterator)">DTMNodeIterator</A></B>(<A HREF="../../../../../org/apache/xml/dtm/DTMIterator.html" title="interface in org.apache.xml.dtm">DTMIterator</A> dtmIterator)</CODE> | |
<BR> | |
Public constructor: Wrap a DTMNodeIterator around an existing | |
and preconfigured DTMIterator</TD> | |
</TR> | |
</TABLE> | |
| |
<!-- ========== METHOD SUMMARY =========== --> | |
<A NAME="method_summary"><!-- --></A> | |
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<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> | |
<CODE> void</CODE></FONT></TD> | |
<TD><CODE><B><A HREF="../../../../../org/apache/xml/dtm/ref/DTMNodeIterator.html#detach()">detach</A></B>()</CODE> | |
<BR> | |
Detaches the NodeIterator from the set which it iterated over, | |
releasing any computational resources and placing the iterator in | |
the INVALID state.</TD> | |
</TR> | |
<TR BGCOLOR="white" CLASS="TableRowColor"> | |
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> | |
<CODE> <A HREF="../../../../../org/apache/xml/dtm/DTMIterator.html" title="interface in org.apache.xml.dtm">DTMIterator</A></CODE></FONT></TD> | |
<TD><CODE><B><A HREF="../../../../../org/apache/xml/dtm/ref/DTMNodeIterator.html#getDTMIterator()">getDTMIterator</A></B>()</CODE> | |
<BR> | |
Access the wrapped DTMIterator.</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/xml/dtm/ref/DTMNodeIterator.html#getExpandEntityReferences()">getExpandEntityReferences</A></B>()</CODE> | |
<BR> | |
The value of this flag determines whether the children | |
of entity reference nodes are visible to the iterator.</TD> | |
</TR> | |
<TR BGCOLOR="white" CLASS="TableRowColor"> | |
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> | |
<CODE> org.w3c.dom.traversal.NodeFilter</CODE></FONT></TD> | |
<TD><CODE><B><A HREF="../../../../../org/apache/xml/dtm/ref/DTMNodeIterator.html#getFilter()">getFilter</A></B>()</CODE> | |
<BR> | |
Return a handle to the filter used to screen nodes.</TD> | |
</TR> | |
<TR BGCOLOR="white" CLASS="TableRowColor"> | |
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> | |
<CODE> org.w3c.dom.Node</CODE></FONT></TD> | |
<TD><CODE><B><A HREF="../../../../../org/apache/xml/dtm/ref/DTMNodeIterator.html#getRoot()">getRoot</A></B>()</CODE> | |
<BR> | |
</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/xml/dtm/ref/DTMNodeIterator.html#getWhatToShow()">getWhatToShow</A></B>()</CODE> | |
<BR> | |
Return a mask describing which node types are presented via the | |
iterator.</TD> | |
</TR> | |
<TR BGCOLOR="white" CLASS="TableRowColor"> | |
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> | |
<CODE> org.w3c.dom.Node</CODE></FONT></TD> | |
<TD><CODE><B><A HREF="../../../../../org/apache/xml/dtm/ref/DTMNodeIterator.html#nextNode()">nextNode</A></B>()</CODE> | |
<BR> | |
</TD> | |
</TR> | |
<TR BGCOLOR="white" CLASS="TableRowColor"> | |
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> | |
<CODE> org.w3c.dom.Node</CODE></FONT></TD> | |
<TD><CODE><B><A HREF="../../../../../org/apache/xml/dtm/ref/DTMNodeIterator.html#previousNode()">previousNode</A></B>()</CODE> | |
<BR> | |
</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.Object</B></TH> | |
</TR> | |
<TR BGCOLOR="white" CLASS="TableRowColor"> | |
<TD><CODE>clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait</CODE></TD> | |
</TR> | |
</TABLE> | |
| |
<P> | |
<!-- ============ FIELD DETAIL =========== --> | |
<A NAME="field_detail"><!-- --></A> | |
<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""> | |
<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"> | |
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<B>Field Detail</B></FONT></TH> | |
</TR> | |
</TABLE> | |
<A NAME="dtm_iter"><!-- --></A><H3> | |
dtm_iter</H3> | |
<PRE> | |
private <A HREF="../../../../../org/apache/xml/dtm/DTMIterator.html" title="interface in org.apache.xml.dtm">DTMIterator</A> <A HREF="../../../../../src-html/org/apache/xml/dtm/ref/DTMNodeIterator.html#line.61"><B>dtm_iter</B></A></PRE> | |
<DL> | |
<DL> | |
</DL> | |
</DL> | |
<HR> | |
<A NAME="valid"><!-- --></A><H3> | |
valid</H3> | |
<PRE> | |
private boolean <A HREF="../../../../../src-html/org/apache/xml/dtm/ref/DTMNodeIterator.html#line.62"><B>valid</B></A></PRE> | |
<DL> | |
<DL> | |
</DL> | |
</DL> | |
<!-- ========= CONSTRUCTOR DETAIL ======== --> | |
<A NAME="constructor_detail"><!-- --></A> | |
<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""> | |
<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"> | |
<TH ALIGN="left" COLSPAN="1"><FONT SIZE="+2"> | |
<B>Constructor Detail</B></FONT></TH> | |
</TR> | |
</TABLE> | |
<A NAME="DTMNodeIterator(org.apache.xml.dtm.DTMIterator)"><!-- --></A><H3> | |
DTMNodeIterator</H3> | |
<PRE> | |
public <A HREF="../../../../../src-html/org/apache/xml/dtm/ref/DTMNodeIterator.html#line.70"><B>DTMNodeIterator</B></A>(<A HREF="../../../../../org/apache/xml/dtm/DTMIterator.html" title="interface in org.apache.xml.dtm">DTMIterator</A> dtmIterator)</PRE> | |
<DL> | |
<DD>Public constructor: Wrap a DTMNodeIterator around an existing | |
and preconfigured DTMIterator | |
<P> | |
</DL> | |
<!-- ============ METHOD DETAIL ========== --> | |
<A NAME="method_detail"><!-- --></A> | |
<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""> | |
<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"> | |
<TH ALIGN="left" COLSPAN="1"><FONT SIZE="+2"> | |
<B>Method Detail</B></FONT></TH> | |
</TR> | |
</TABLE> | |
<A NAME="getDTMIterator()"><!-- --></A><H3> | |
getDTMIterator</H3> | |
<PRE> | |
public <A HREF="../../../../../org/apache/xml/dtm/DTMIterator.html" title="interface in org.apache.xml.dtm">DTMIterator</A> <A HREF="../../../../../src-html/org/apache/xml/dtm/ref/DTMNodeIterator.html#line.85"><B>getDTMIterator</B></A>()</PRE> | |
<DL> | |
<DD>Access the wrapped DTMIterator. I'm not sure whether anyone will | |
need this or not, but let's write it and think about it. | |
<P> | |
<DD><DL> | |
</DL> | |
</DD> | |
<DD><DL> | |
</DL> | |
</DD> | |
</DL> | |
<HR> | |
<A NAME="detach()"><!-- --></A><H3> | |
detach</H3> | |
<PRE> | |
public void <A HREF="../../../../../src-html/org/apache/xml/dtm/ref/DTMNodeIterator.html#line.98"><B>detach</B></A>()</PRE> | |
<DL> | |
<DD>Detaches the NodeIterator from the set which it iterated over, | |
releasing any computational resources and placing the iterator in | |
the INVALID state. | |
<P> | |
<DD><DL> | |
<DT><B>Specified by:</B><DD><CODE>detach</CODE> in interface <CODE>org.w3c.dom.traversal.NodeIterator</CODE></DL> | |
</DD> | |
<DD><DL> | |
</DL> | |
</DD> | |
</DL> | |
<HR> | |
<A NAME="getExpandEntityReferences()"><!-- --></A><H3> | |
getExpandEntityReferences</H3> | |
<PRE> | |
public boolean <A HREF="../../../../../src-html/org/apache/xml/dtm/ref/DTMNodeIterator.html#line.111"><B>getExpandEntityReferences</B></A>()</PRE> | |
<DL> | |
<DD>The value of this flag determines whether the children | |
of entity reference nodes are visible to the iterator. | |
<P> | |
<DD><DL> | |
<DT><B>Specified by:</B><DD><CODE>getExpandEntityReferences</CODE> in interface <CODE>org.w3c.dom.traversal.NodeIterator</CODE></DL> | |
</DD> | |
<DD><DL> | |
<DT><B>Returns:</B><DD>false, always (the DTM model flattens entity references)</DL> | |
</DD> | |
</DL> | |
<HR> | |
<A NAME="getFilter()"><!-- --></A><H3> | |
getFilter</H3> | |
<PRE> | |
public org.w3c.dom.traversal.NodeFilter <A HREF="../../../../../src-html/org/apache/xml/dtm/ref/DTMNodeIterator.html#line.128"><B>getFilter</B></A>()</PRE> | |
<DL> | |
<DD>Return a handle to the filter used to screen nodes. | |
This is ill-defined in Xalan's usage of Nodeiterator, where we have | |
built stateful XPath-based filtering directly into the traversal | |
object. We could return something which supports the NodeFilter interface | |
and allows querying whether a given node would be permitted if it appeared | |
as our next node, but in the current implementation that would be very | |
complex -- and just isn't all that useful. | |
<P> | |
<DD><DL> | |
<DT><B>Specified by:</B><DD><CODE>getFilter</CODE> in interface <CODE>org.w3c.dom.traversal.NodeIterator</CODE></DL> | |
</DD> | |
<DD><DL> | |
<DT><B>Throws:</B> | |
<DD><CODE>org.w3c.dom.DOMException</CODE> - -- NOT_SUPPORTED_ERROR because I can't think | |
of anything more useful to do in this case</DL> | |
</DD> | |
</DL> | |
<HR> | |
<A NAME="getRoot()"><!-- --></A><H3> | |
getRoot</H3> | |
<PRE> | |
public org.w3c.dom.Node <A HREF="../../../../../src-html/org/apache/xml/dtm/ref/DTMNodeIterator.html#line.137"><B>getRoot</B></A>()</PRE> | |
<DL> | |
<DD><DL> | |
<DT><B>Specified by:</B><DD><CODE>getRoot</CODE> in interface <CODE>org.w3c.dom.traversal.NodeIterator</CODE></DL> | |
</DD> | |
<DD><DL> | |
<DT><B>Returns:</B><DD>The root node of the NodeIterator, as specified | |
when it was created.</DL> | |
</DD> | |
</DL> | |
<HR> | |
<A NAME="getWhatToShow()"><!-- --></A><H3> | |
getWhatToShow</H3> | |
<PRE> | |
public int <A HREF="../../../../../src-html/org/apache/xml/dtm/ref/DTMNodeIterator.html#line.147"><B>getWhatToShow</B></A>()</PRE> | |
<DL> | |
<DD>Return a mask describing which node types are presented via the | |
iterator. | |
<P> | |
<DD><DL> | |
<DT><B>Specified by:</B><DD><CODE>getWhatToShow</CODE> in interface <CODE>org.w3c.dom.traversal.NodeIterator</CODE></DL> | |
</DD> | |
<DD><DL> | |
</DL> | |
</DD> | |
</DL> | |
<HR> | |
<A NAME="nextNode()"><!-- --></A><H3> | |
nextNode</H3> | |
<PRE> | |
public org.w3c.dom.Node <A HREF="../../../../../src-html/org/apache/xml/dtm/ref/DTMNodeIterator.html#line.158"><B>nextNode</B></A>() | |
throws org.w3c.dom.DOMException</PRE> | |
<DL> | |
<DD><DL> | |
<DT><B>Specified by:</B><DD><CODE>nextNode</CODE> in interface <CODE>org.w3c.dom.traversal.NodeIterator</CODE></DL> | |
</DD> | |
<DD><DL> | |
<DT><B>Returns:</B><DD>the next node in the set and advance the position of the | |
iterator in the set. | |
<DT><B>Throws:</B> | |
<DD><CODE>org.w3c.dom.DOMException</CODE> - - INVALID_STATE_ERR Raised if this method is | |
called after the detach method was invoked.</DL> | |
</DD> | |
</DL> | |
<HR> | |
<A NAME="previousNode()"><!-- --></A><H3> | |
previousNode</H3> | |
<PRE> | |
public org.w3c.dom.Node <A HREF="../../../../../src-html/org/apache/xml/dtm/ref/DTMNodeIterator.html#line.176"><B>previousNode</B></A>()</PRE> | |
<DL> | |
<DD><DL> | |
<DT><B>Specified by:</B><DD><CODE>previousNode</CODE> in interface <CODE>org.w3c.dom.traversal.NodeIterator</CODE></DL> | |
</DD> | |
<DD><DL> | |
<DT><B>Returns:</B><DD>the next previous in the set and advance the position of the | |
iterator in the set. | |
<DT><B>Throws:</B> | |
<DD><CODE>org.w3c.dom.DOMException</CODE> - - INVALID_STATE_ERR Raised if this method is | |
called after the detach method was invoked.</DL> | |
</DD> | |
</DL> | |
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