public NodeSet getNodesContaining(XQueryContext context, DocumentSet docs, NodeSet contextSet, String expr) throws TerminatedException { return getNodesContaining(context, docs, contextSet, expr, DBBroker.MATCH_EXACT); }
public NodeSet getNodesContaining(XQueryContext context, DocumentSet docs, NodeSet contextSet, String expr, int type) throws TerminatedException { return getNodesContaining(context, docs, contextSet, expr, type, true); }
	public NodeSet getNodesContaining(XQueryContext context, DocumentSet docs, NodeSet contextSet, 	        String expr) throws TerminatedException {		return getNodesContaining(context, docs, contextSet, expr, DBBroker.MATCH_EXACT);	}