connectivity/source/drivers/jdbc/Clob.cxx

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
   2 /*
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   9  * This file incorporates work covered by the following license notice:
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  14  *   ownership. The ASF licenses this file to you under the Apache
  15  *   License, Version 2.0 (the "License"); you may not use this file
  16  *   except in compliance with the License. You may obtain a copy of
  17  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
  18  */
  19
  20 #include <java/sql/Clob.hxx>
  21 #include <java/tools.hxx>
  22 #include <java/io/Reader.hxx>
  23 #include <connectivity/dbexception.hxx>
  24 #include <osl/diagnose.h>
  25
  26 using namespace connectivity;
  27
  28 //************ Class: java.sql.Clob
  29
  30
  31 jclass java_sql_Clob::theClass = nullptr;
  32
  33 java_sql_Clob::java_sql_Clob( JNIEnv * pEnv, jobject myObj )
  34     : java_lang_Object( pEnv, myObj )
  35 {
  36     SDBThreadAttach::addRef();
  37 }
  38 java_sql_Clob::~java_sql_Clob()
  39 {
  40     SDBThreadAttach::releaseRef();
  41 }
  42
  43 jclass java_sql_Clob::getMyClass() const
  44 {
  45     // the class must be fetched only once, therefore static
  46     if( !theClass )
  47         theClass = findMyClass("java/sql/Clob");
  48     return theClass;
  49 }
  50
  51 sal_Int64 SAL_CALL java_sql_Clob::length(  )
  52 {
  53     jlong out(0);
  54     SDBThreadAttach t; OSL_ENSURE(t.pEnv,"Java environment has been deleted!");
  55
  56     {
  57         // initialize temporary variable
  58         static const char * const cSignature = "()J";
  59         static const char * const cMethodName = "length";
  60         // execute Java-Call
  61         static jmethodID mID(nullptr);
  62         obtainMethodId_throwSQL(t.pEnv, cMethodName,cSignature, mID);
  63         out = t.pEnv->CallLongMethod( object, mID );
  64         ThrowSQLException(t.pEnv,*this);
  65     } //t.pEnv
  66     return static_cast<sal_Int64>(out);
  67 }
  68
  69 OUString SAL_CALL java_sql_Clob::getSubString( sal_Int64 pos, sal_Int32 subStringLength )
  70 {
  71     SDBThreadAttach t; OSL_ENSURE(t.pEnv,"Java environment has been deleted!");
  72     OUString aStr;
  73     {
  74         // initialize temporary variable
  75         static const char * const cSignature = "(JI)Ljava/lang/String;";
  76         static const char * const cMethodName = "getSubString";
  77         // execute Java-Call
  78         static jmethodID mID(nullptr);
  79         obtainMethodId_throwSQL(t.pEnv, cMethodName,cSignature, mID);
  80         jstring out = static_cast<jstring>(t.pEnv->CallObjectMethod( object, mID,pos,subStringLength));
  81         ThrowSQLException(t.pEnv,*this);
  82         aStr = JavaString2String(t.pEnv,out);
  83     } //t.pEnv
  84     // WARNING: the caller becomes the owner of the returned pointer
  85     return  aStr;
  86 }
  87
  88 css::uno::Reference< css::io::XInputStream > SAL_CALL java_sql_Clob::getCharacterStream(  )
  89 {
  90     SDBThreadAttach t;
  91     static jmethodID mID(nullptr);
  92     jobject out = callObjectMethod(t.pEnv,"getCharacterStream","()Ljava/io/Reader;", mID);
  93
  94     // WARNING: the caller becomes the owner of the returned pointer
  95     return out==nullptr ? nullptr : new java_io_Reader( t.pEnv, out );
  96 }
  97
  98 sal_Int64 SAL_CALL java_sql_Clob::position( const OUString& searchstr, sal_Int32 start )
  99 {
 100     jlong out(0);
 101     SDBThreadAttach t; OSL_ENSURE(t.pEnv,"Java environment has been deleted!");
 102
 103     {
 104         jvalue args[1];
 105         // convert Parameter
 106         args[0].l = convertwchar_tToJavaString(t.pEnv,searchstr);
 107         // initialize temporary Variable
 108         static const char * const cSignature = "(Ljava/lang/String;I)J";
 109         static const char * const cMethodName = "position";
 110         // execute Java-Call
 111         static jmethodID mID(nullptr);
 112         obtainMethodId_throwSQL(t.pEnv, cMethodName,cSignature, mID);
 113         out = t.pEnv->CallLongMethod( object, mID, args[0].l,start );
 114         ThrowSQLException(t.pEnv,*this);
 115         t.pEnv->DeleteLocalRef(static_cast<jstring>(args[0].l));
 116     } //t.pEnv
 117     return static_cast<sal_Int64>(out);
 118 }
 119
 120 sal_Int64 SAL_CALL java_sql_Clob::positionOfClob( const css::uno::Reference< css::sdbc::XClob >& /*pattern*/, sal_Int64 /*start*/ )
 121 {
 122     ::dbtools::throwFeatureNotImplementedSQLException( u"XClob::positionOfClob"_ustr, *this );
 123 }
 124
 125 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */