1*2e2212a7SAndrew Rist /************************************************************** 2cdf0e10cSrcweir * 3*2e2212a7SAndrew Rist * Licensed to the Apache Software Foundation (ASF) under one 4*2e2212a7SAndrew Rist * or more contributor license agreements. See the NOTICE file 5*2e2212a7SAndrew Rist * distributed with this work for additional information 6*2e2212a7SAndrew Rist * regarding copyright ownership. The ASF licenses this file 7*2e2212a7SAndrew Rist * to you under the Apache License, Version 2.0 (the 8*2e2212a7SAndrew Rist * "License"); you may not use this file except in compliance 9*2e2212a7SAndrew Rist * with the License. You may obtain a copy of the License at 10*2e2212a7SAndrew Rist * 11*2e2212a7SAndrew Rist * http://www.apache.org/licenses/LICENSE-2.0 12*2e2212a7SAndrew Rist * 13*2e2212a7SAndrew Rist * Unless required by applicable law or agreed to in writing, 14*2e2212a7SAndrew Rist * software distributed under the License is distributed on an 15*2e2212a7SAndrew Rist * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY 16*2e2212a7SAndrew Rist * KIND, either express or implied. See the License for the 17*2e2212a7SAndrew Rist * specific language governing permissions and limitations 18*2e2212a7SAndrew Rist * under the License. 19*2e2212a7SAndrew Rist * 20*2e2212a7SAndrew Rist *************************************************************/ 21*2e2212a7SAndrew Rist 22*2e2212a7SAndrew Rist 23cdf0e10cSrcweir 24cdf0e10cSrcweir #ifndef DBACCESS_SOURCE_CORE_INC_COMPOSERTOOLS_HXX 25cdf0e10cSrcweir #define DBACCESS_SOURCE_CORE_INC_COMPOSERTOOLS_HXX 26cdf0e10cSrcweir 27cdf0e10cSrcweir /** === begin UNO includes === **/ 28cdf0e10cSrcweir /** === end UNO includes === **/ 29cdf0e10cSrcweir 30cdf0e10cSrcweir #ifndef _RTL_USTRBUF_HXX_ 31cdf0e10cSrcweir #include <rtl/ustrbuf.hxx> 32cdf0e10cSrcweir #endif 33cdf0e10cSrcweir 34cdf0e10cSrcweir #include <functional> 35cdf0e10cSrcweir 36cdf0e10cSrcweir //........................................................................ 37cdf0e10cSrcweir namespace dbaccess 38cdf0e10cSrcweir { 39cdf0e10cSrcweir //........................................................................ 40cdf0e10cSrcweir 41cdf0e10cSrcweir //==================================================================== 42cdf0e10cSrcweir //= TokenComposer 43cdf0e10cSrcweir //==================================================================== 44cdf0e10cSrcweir struct TokenComposer : public ::std::unary_function< ::rtl::OUString, void > 45cdf0e10cSrcweir { 46cdf0e10cSrcweir private: 47cdf0e10cSrcweir #ifdef DBG_UTIL 48cdf0e10cSrcweir bool m_bUsed; 49cdf0e10cSrcweir #endif 50cdf0e10cSrcweir 51cdf0e10cSrcweir protected: 52cdf0e10cSrcweir ::rtl::OUStringBuffer m_aBuffer; 53cdf0e10cSrcweir 54cdf0e10cSrcweir public: getComposedAndCleardbaccess::TokenComposer55cdf0e10cSrcweir ::rtl::OUString getComposedAndClear() 56cdf0e10cSrcweir { 57cdf0e10cSrcweir #ifdef DBG_UTIL 58cdf0e10cSrcweir m_bUsed = true; 59cdf0e10cSrcweir #endif 60cdf0e10cSrcweir return m_aBuffer.makeStringAndClear(); 61cdf0e10cSrcweir } 62cdf0e10cSrcweir cleardbaccess::TokenComposer63cdf0e10cSrcweir void clear() 64cdf0e10cSrcweir { 65cdf0e10cSrcweir #ifdef DBG_UTIL 66cdf0e10cSrcweir m_bUsed = false; 67cdf0e10cSrcweir #endif 68cdf0e10cSrcweir m_aBuffer.makeStringAndClear(); 69cdf0e10cSrcweir } 70cdf0e10cSrcweir 71cdf0e10cSrcweir public: TokenComposerdbaccess::TokenComposer72cdf0e10cSrcweir TokenComposer() 73cdf0e10cSrcweir #ifdef DBG_UTIL 74cdf0e10cSrcweir :m_bUsed( false ) 75cdf0e10cSrcweir #endif 76cdf0e10cSrcweir { 77cdf0e10cSrcweir } 78cdf0e10cSrcweir ~TokenComposerdbaccess::TokenComposer79cdf0e10cSrcweir virtual ~TokenComposer() 80cdf0e10cSrcweir { 81cdf0e10cSrcweir } 82cdf0e10cSrcweir operator ()dbaccess::TokenComposer83cdf0e10cSrcweir void operator() (const ::rtl::OUString& lhs) 84cdf0e10cSrcweir { 85cdf0e10cSrcweir append(lhs); 86cdf0e10cSrcweir } 87cdf0e10cSrcweir appenddbaccess::TokenComposer88cdf0e10cSrcweir void append( const ::rtl::OUString& lhs ) 89cdf0e10cSrcweir { 90cdf0e10cSrcweir #ifdef DBG_UTIL 91cdf0e10cSrcweir OSL_ENSURE( !m_bUsed, "FilterCreator::append: already used up!" ); 92cdf0e10cSrcweir #endif 93cdf0e10cSrcweir if ( lhs.getLength() ) 94cdf0e10cSrcweir { 95cdf0e10cSrcweir if ( m_aBuffer.getLength() ) 96cdf0e10cSrcweir appendNonEmptyToNonEmpty( lhs ); 97cdf0e10cSrcweir else 98cdf0e10cSrcweir m_aBuffer.append( lhs ); 99cdf0e10cSrcweir } 100cdf0e10cSrcweir } 101cdf0e10cSrcweir 102cdf0e10cSrcweir /// append the given part. Only to be called when both the part and our buffer so far are not empty 103cdf0e10cSrcweir virtual void appendNonEmptyToNonEmpty( const ::rtl::OUString& lhs ) = 0; 104cdf0e10cSrcweir }; 105cdf0e10cSrcweir 106cdf0e10cSrcweir //==================================================================== 107cdf0e10cSrcweir //= FilterCreator 108cdf0e10cSrcweir //==================================================================== 109cdf0e10cSrcweir struct FilterCreator : public TokenComposer 110cdf0e10cSrcweir { appendNonEmptyToNonEmptydbaccess::FilterCreator111cdf0e10cSrcweir virtual void appendNonEmptyToNonEmpty( const ::rtl::OUString& lhs ) 112cdf0e10cSrcweir { 113cdf0e10cSrcweir m_aBuffer.insert( 0, (sal_Unicode)' ' ); 114cdf0e10cSrcweir m_aBuffer.insert( 0, (sal_Unicode)'(' ); 115cdf0e10cSrcweir m_aBuffer.appendAscii( " ) AND ( " ); 116cdf0e10cSrcweir m_aBuffer.append( lhs ); 117cdf0e10cSrcweir m_aBuffer.appendAscii( " )" ); 118cdf0e10cSrcweir } 119cdf0e10cSrcweir }; 120cdf0e10cSrcweir 121cdf0e10cSrcweir //==================================================================== 122cdf0e10cSrcweir //= FilterCreator 123cdf0e10cSrcweir //==================================================================== 124cdf0e10cSrcweir struct OrderCreator : public TokenComposer 125cdf0e10cSrcweir { appendNonEmptyToNonEmptydbaccess::OrderCreator126cdf0e10cSrcweir virtual void appendNonEmptyToNonEmpty( const ::rtl::OUString& lhs ) 127cdf0e10cSrcweir { 128cdf0e10cSrcweir m_aBuffer.appendAscii( ", " ); 129cdf0e10cSrcweir m_aBuffer.append( lhs ); 130cdf0e10cSrcweir } 131cdf0e10cSrcweir }; 132cdf0e10cSrcweir 133cdf0e10cSrcweir //........................................................................ 134cdf0e10cSrcweir } // namespace dbaccess 135cdf0e10cSrcweir //........................................................................ 136cdf0e10cSrcweir 137cdf0e10cSrcweir #endif // DBACCESS_SOURCE_CORE_INC_COMPOSERTOOLS_HXX 138cdf0e10cSrcweir 139