/** Reset for new run. */
public void reset() {
releaseDTMXRTreeFrags();
// These couldn't be disposed of earlier (see comments in release()); zap them now.
if (m_rtfdtm_stack != null)
for (java.util.Enumeration e = m_rtfdtm_stack.elements(); e.hasMoreElements(); )
m_dtmManager.release((DTM) e.nextElement(), true);
m_rtfdtm_stack = null; // drop our references too
m_which_rtfdtm = -1;
if (m_global_rtfdtm != null) m_dtmManager.release(m_global_rtfdtm, true);
m_global_rtfdtm = null;
m_dtmManager =
DTMManager.newInstance(org.apache.xpath.objects.XMLStringFactoryImpl.getFactory());
m_saxLocations.removeAllElements();
m_axesIteratorStack.removeAllElements();
m_contextNodeLists.removeAllElements();
m_currentExpressionNodes.removeAllElements();
m_currentNodes.removeAllElements();
m_iteratorRoots.RemoveAllNoClear();
m_predicatePos.removeAllElements();
m_predicateRoots.RemoveAllNoClear();
m_prefixResolvers.removeAllElements();
m_prefixResolvers.push(null);
m_currentNodes.push(DTM.NULL);
m_currentExpressionNodes.push(DTM.NULL);
m_saxLocations.push(null);
}
/**
* Release a DTM either to a lru pool, or completely remove reference. DTMs without system IDs are
* always hard deleted. State: experimental.
*
* @param dtm The DTM to be released.
* @param shouldHardDelete True if the DTM should be removed no matter what.
* @return true if the DTM was removed, false if it was put back in a lru pool.
*/
public boolean release(DTM dtm, boolean shouldHardDelete) {
// %REVIEW% If it's a DTM which may contain multiple Result Tree
// Fragments, we can't discard it unless we know not only that it
// is empty, but that the XPathContext itself is going away. So do
// _not_ accept the request. (May want to do it as part of
// reset(), though.)
if (m_rtfdtm_stack != null && m_rtfdtm_stack.contains(dtm)) {
return false;
}
return m_dtmManager.release(dtm, shouldHardDelete);
}