| /************************************************************** |
| * |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| * |
| *************************************************************/ |
| |
| |
| |
| #ifndef _PATHEXPRESSION_HXX |
| #define _PATHEXPRESSION_HXX |
| |
| |
| // include for parent class |
| #include "computedexpression.hxx" |
| |
| // includes for member variables |
| #include <vector> |
| |
| // forward declaractions |
| namespace com { namespace sun { namespace star |
| { |
| namespace xml { namespace dom |
| { |
| class XNodeList; |
| namespace events { class XEventListener; } |
| } } |
| } } } |
| |
| |
| |
| namespace xforms |
| { |
| |
| /** PathExpression represents an XPath Expression and caches results */ |
| class PathExpression : public ComputedExpression |
| { |
| public: |
| typedef std::vector<com::sun::star::uno::Reference<com::sun::star::xml::dom::XNode> > NodeVector_t; |
| |
| private: |
| /// the node-list result from the last bind (cached from mxResult) |
| NodeVector_t maNodes; |
| |
| protected: |
| /// get expression for evaluation |
| const rtl::OUString _getExpressionForEvaluation() const; |
| |
| |
| public: |
| PathExpression(); |
| ~PathExpression(); |
| |
| /// set the expression string |
| /// (overridden to do remove old listeners) |
| /// (also defines simple expressions) |
| void setExpression( const rtl::OUString& rExpression ); |
| |
| |
| /// evaluate the expression relative to the content node. |
| bool evaluate( const xforms::EvaluationContext& rContext ); |
| |
| |
| // get the result of this expression as node/node list/... |
| com::sun::star::uno::Reference<com::sun::star::xml::dom::XNode> getNode() const; |
| const NodeVector_t getNodeList() const; |
| com::sun::star::uno::Reference<com::sun::star::xml::dom::XNodeList> getXNodeList() const; |
| |
| }; |
| |
| } // namespace xforms |
| |
| #endif |