connectivity/source/drivers/jdbc/Clob.cxx

   1 /*************************************************************************
   2  *
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * Copyright 2008 by Sun Microsystems, Inc.
   6  *
   7  * OpenOffice.org - a multi-platform office productivity suite
   8  *
   9  * $RCSfile: Clob.cxx,v $
  10  * $Revision: 1.10 $
  11  *
  12  * This file is part of OpenOffice.org.
  13  *
  14  * OpenOffice.org is free software: you can redistribute it and/or modify
  15  * it under the terms of the GNU Lesser General Public License version 3
  16  * only, as published by the Free Software Foundation.
  17  *
  18  * OpenOffice.org is distributed in the hope that it will be useful,
  19  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  20  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  21  * GNU Lesser General Public License version 3 for more details
  22  * (a copy is included in the LICENSE file that accompanied this code).
  23  *
  24  * You should have received a copy of the GNU Lesser General Public License
  25  * version 3 along with OpenOffice.org.  If not, see
  26  * <http://www.openoffice.org/license.html>
  27  * for a copy of the LGPLv3 License.
  28  *
  29  ************************************************************************/
  30
  31 // MARKER(update_precomp.py): autogen include statement, do not remove
  32 #include "precompiled_connectivity.hxx"
  33 #include "java/sql/Clob.hxx"
  34 #include "java/tools.hxx"
  35 #include "java/io/Reader.hxx"
  36 #include <connectivity/dbexception.hxx>
  37 using namespace connectivity;
  38 //**************************************************************
  39 //************ Class: java.sql.Clob
  40 //**************************************************************
  41
  42 jclass java_sql_Clob::theClass = 0;
  43
  44 java_sql_Clob::java_sql_Clob( JNIEnv * pEnv, jobject myObj )
  45     : java_lang_Object( pEnv, myObj )
  46 {
  47     SDBThreadAttach::addRef();
  48 }
  49 java_sql_Clob::~java_sql_Clob()
  50 {
  51     SDBThreadAttach::releaseRef();
  52 }
  53
  54 jclass java_sql_Clob::getMyClass() const
  55 {
  56     // die Klasse muss nur einmal geholt werden, daher statisch
  57     if( !theClass )
  58         theClass = findMyClass("java/sql/Clob");
  59     return theClass;
  60 }
  61
  62 sal_Int64 SAL_CALL java_sql_Clob::length(  ) throw(::com::sun::star::sdbc::SQLException, ::com::sun::star::uno::RuntimeException)
  63 {
  64     jlong out(0);
  65     SDBThreadAttach t; OSL_ENSURE(t.pEnv,"Java Enviroment geloescht worden!");
  66
  67     {
  68         // temporaere Variable initialisieren
  69         static const char * cSignature = "()J";
  70         static const char * cMethodName = "length";
  71         // Java-Call absetzen
  72         static jmethodID mID(NULL);
  73         obtainMethodId(t.pEnv, cMethodName,cSignature, mID);
  74         out = t.pEnv->CallLongMethod( object, mID );
  75         ThrowSQLException(t.pEnv,*this);
  76     } //t.pEnv
  77     return (sal_Int64)out;
  78 }
  79
  80 ::rtl::OUString SAL_CALL java_sql_Clob::getSubString( sal_Int64 pos, sal_Int32 subStringLength ) throw(::com::sun::star::sdbc::SQLException, ::com::sun::star::uno::RuntimeException)
  81 {
  82     SDBThreadAttach t; OSL_ENSURE(t.pEnv,"Java Enviroment geloescht worden!");
  83     ::rtl::OUString aStr;
  84     {
  85         // temporaere Variable initialisieren
  86         static const char * cSignature = "(JI)Ljava/lang/String;";
  87         static const char * cMethodName = "getSubString";
  88         // Java-Call absetzen
  89         static jmethodID mID(NULL);
  90         obtainMethodId(t.pEnv, cMethodName,cSignature, mID);
  91         jstring out = (jstring)t.pEnv->CallObjectMethod( object, mID,pos,subStringLength);
  92         ThrowSQLException(t.pEnv,*this);
  93         aStr = JavaString2String(t.pEnv,out);
  94     } //t.pEnv
  95     // ACHTUNG: der Aufrufer wird Eigentuemer des zurueckgelieferten Zeigers !!!
  96     return      aStr;
  97 }
  98
  99 ::com::sun::star::uno::Reference< ::com::sun::star::io::XInputStream > SAL_CALL java_sql_Clob::getCharacterStream(  ) throw(::com::sun::star::sdbc::SQLException, ::com::sun::star::uno::RuntimeException)
 100 {
 101     SDBThreadAttach t;
 102     static jmethodID mID(NULL);
 103     jobject out = callObjectMethod(t.pEnv,"getCharacterStream","()Ljava/io/Reader;", mID);
 104
 105     // ACHTUNG: der Aufrufer wird Eigentuemer des zurueckgelieferten Zeigers !!!
 106     return out==0 ? 0 : new java_io_Reader( t.pEnv, out );
 107 }
 108
 109 sal_Int64 SAL_CALL java_sql_Clob::position( const ::rtl::OUString& searchstr, sal_Int32 start ) throw(::com::sun::star::sdbc::SQLException, ::com::sun::star::uno::RuntimeException)
 110 {
 111     jlong out(0);
 112     SDBThreadAttach t; OSL_ENSURE(t.pEnv,"Java Enviroment geloescht worden!");
 113
 114     {
 115         jvalue args[1];
 116         // Parameter konvertieren
 117         args[0].l = convertwchar_tToJavaString(t.pEnv,searchstr);
 118         // temporaere Variable initialisieren
 119         static const char * cSignature = "(Ljava/lang/String;I)J";
 120         static const char * cMethodName = "position";
 121         // Java-Call absetzen
 122         static jmethodID mID(NULL);
 123         obtainMethodId(t.pEnv, cMethodName,cSignature, mID);
 124         out = t.pEnv->CallLongMethod( object, mID, args[0].l,start );
 125         ThrowSQLException(t.pEnv,*this);
 126         t.pEnv->DeleteLocalRef((jstring)args[0].l);
 127     } //t.pEnv
 128     return (sal_Int64)out;
 129 }
 130
 131 sal_Int64 SAL_CALL java_sql_Clob::positionOfClob( const ::com::sun::star::uno::Reference< ::com::sun::star::sdbc::XClob >& /*pattern*/, sal_Int64 /*start*/ ) throw(::com::sun::star::sdbc::SQLException, ::com::sun::star::uno::RuntimeException)
 132 {
 133     ::dbtools::throwFeatureNotImplementedException( "XClob::positionOfClob", *this );
 134     // this was put here in CWS warnings01. The previous implementation was defective, as it did ignore
 135     // the pattern parameter. Since the effort for proper implementation is rather high - we would need
 136     // to translated patter into a byte[] -, we defer this functionality for the moment (hey, it was
 137     // unusable, anyway)
 138     // 2005-11-15 / #i57457# / frank.schoenheit@sun.com
 139     return 0;
 140 }
 141
 142