1 /*
2 * reserved comment block
3 * DO NOT REMOVE OR ALTER!
4 */
5 /*
6 * Licensed to the Apache Software Foundation (ASF) under one or more
7 * contributor license agreements. See the NOTICE file distributed with
8 * this work for additional information regarding copyright ownership.
9 * The ASF licenses this file to You under the Apache License, Version 2.0
10 * (the "License"); you may not use this file except in compliance with
11 * the License. You may obtain a copy of the License at
12 *
13 * http://www.apache.org/licenses/LICENSE-2.0
14 *
15 * Unless required by applicable law or agreed to in writing, software
16 * distributed under the License is distributed on an "AS IS" BASIS,
17 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
18 * See the License for the specific language governing permissions and
19 * limitations under the License.
20 */
21
22 package com.sun.org.apache.xpath.internal.axes;
23
277 * Tell if the expression is a nodeset expression.
278 *
279 * @return true if the expression can be represented as a nodeset.
280 */
281 public boolean isNodesetExpr()
282 {
283 return true;
284 }
285
286 /**
287 * Return the first node out of the nodeset, if this expression is
288 * a nodeset expression. This is the default implementation for
289 * nodesets. Derived classes should try and override this and return a
290 * value without having to do a clone operation.
291 * @param xctxt The XPath runtime context.
292 * @return the first node out of the nodeset, or DTM.NULL.
293 */
294 public int asNode(XPathContext xctxt)
295 throws javax.xml.transform.TransformerException
296 {
297 DTMIterator iter = (DTMIterator)m_clones.getInstance();
298
299 int current = xctxt.getCurrentNode();
300
301 iter.setRoot(current, xctxt);
302
303 int next = iter.nextNode();
304 // m_clones.freeInstance(iter);
305 iter.detach();
306 return next;
307 }
308
309 /**
310 * Evaluate this operation directly to a boolean.
311 *
312 * @param xctxt The runtime execution context.
313 *
314 * @return The result of the operation as a boolean.
315 *
316 * @throws javax.xml.transform.TransformerException
317 */
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1 /*
2 * Copyright (c) 2017, Oracle and/or its affiliates. All rights reserved.
3 * @LastModified: Nov 2017
4 */
5 /*
6 * Licensed to the Apache Software Foundation (ASF) under one or more
7 * contributor license agreements. See the NOTICE file distributed with
8 * this work for additional information regarding copyright ownership.
9 * The ASF licenses this file to You under the Apache License, Version 2.0
10 * (the "License"); you may not use this file except in compliance with
11 * the License. You may obtain a copy of the License at
12 *
13 * http://www.apache.org/licenses/LICENSE-2.0
14 *
15 * Unless required by applicable law or agreed to in writing, software
16 * distributed under the License is distributed on an "AS IS" BASIS,
17 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
18 * See the License for the specific language governing permissions and
19 * limitations under the License.
20 */
21
22 package com.sun.org.apache.xpath.internal.axes;
23
277 * Tell if the expression is a nodeset expression.
278 *
279 * @return true if the expression can be represented as a nodeset.
280 */
281 public boolean isNodesetExpr()
282 {
283 return true;
284 }
285
286 /**
287 * Return the first node out of the nodeset, if this expression is
288 * a nodeset expression. This is the default implementation for
289 * nodesets. Derived classes should try and override this and return a
290 * value without having to do a clone operation.
291 * @param xctxt The XPath runtime context.
292 * @return the first node out of the nodeset, or DTM.NULL.
293 */
294 public int asNode(XPathContext xctxt)
295 throws javax.xml.transform.TransformerException
296 {
297 DTMIterator iter = m_clones.getInstance();
298
299 int current = xctxt.getCurrentNode();
300
301 iter.setRoot(current, xctxt);
302
303 int next = iter.nextNode();
304 // m_clones.freeInstance(iter);
305 iter.detach();
306 return next;
307 }
308
309 /**
310 * Evaluate this operation directly to a boolean.
311 *
312 * @param xctxt The runtime execution context.
313 *
314 * @return The result of the operation as a boolean.
315 *
316 * @throws javax.xml.transform.TransformerException
317 */
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