286N/A * reserved comment block 286N/A * DO NOT REMOVE OR ALTER! 286N/A * Copyright 1999-2004 The Apache Software Foundation. 286N/A * Licensed under the Apache License, Version 2.0 (the "License"); 286N/A * you may not use this file except in compliance with the License. 286N/A * You may obtain a copy of the License at 286N/A * Unless required by applicable law or agreed to in writing, software 286N/A * distributed under the License is distributed on an "AS IS" BASIS, 286N/A * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 286N/A * See the License for the specific language governing permissions and 286N/A * limitations under the License. 286N/A * Base for iterators that handle predicates. Does the basic next 286N/A * node logic, so all the derived iterator has to do is get the 286N/A * Create a LocPathIterator object. 286N/A * @param nscontext The namespace context for this iterator, 286N/A * should be OK if null. 286N/A * Create a LocPathIterator object. 286N/A * @param nscontext The namespace context for this iterator, 286N/A * should be OK if null. 286N/A * Create a LocPathIterator object, including creation 286N/A * of step walkers from the opcode list, and call back 286N/A * into the Compiler to create predicate expressions. 286N/A * @param compiler The Compiler which is creating 286N/A * @param opPos The position of this iterator in the 286N/A * opcode list from the compiler. 286N/A * @throws javax.xml.transform.TransformerException 286N/A * Create a LocPathIterator object, including creation 286N/A * of step walkers from the opcode list, and call back 286N/A * into the Compiler to create predicate expressions. 286N/A * @param compiler The Compiler which is creating 286N/A * @param opPos The position of this iterator in the 286N/A * opcode list from the compiler. 286N/A * @param shouldLoadWalkers True if walkers should be 286N/A * loaded, or false if this is a derived iterator and 286N/A * it doesn't wish to load child walkers. 286N/A * @throws javax.xml.transform.TransformerException 286N/A * Get the next node via getNextXXX. Bottlenecked for derived class override. 286N/A * @return The next node on the axis, or DTM.NULL. 286N/A * Returns the next node in the set and advances the position of the 286N/A * iterator in the set. After a NodeIterator is created, the first call 286N/A * to nextNode() returns the first node in the set. 286N/A * @return The next <code>Node</code> in the set being iterated over, or 286N/A * <code>null</code> if there are no more members in that set. 286N/A // These three statements need to be combined into one operation. 286N/A // Yuck. Just to shut up the compiler! 286N/A // These two statements need to be combined into one operation. 286N/A * Get a cloned Iterator that is reset to the beginning 286N/A * @return A cloned NodeIterator set of the start of the query. 286N/A * @throws CloneNotSupportedException