javauis/javalegacyutils/src/RJString.cpp
changeset 76 4ad59aaee882
parent 69 773449708c84
child 79 2f468c1958d0
equal deleted inserted replaced
69:773449708c84 76:4ad59aaee882
     1 /*
       
     2 * Copyright (c) 1999-2000 Nokia Corporation and/or its subsidiary(-ies).
       
     3 * All rights reserved.
       
     4 * This component and the accompanying materials are made available
       
     5 * under the terms of "Eclipse Public License v1.0"
       
     6 * which accompanies this distribution, and is available
       
     7 * at the URL "http://www.eclipse.org/legal/epl-v10.html".
       
     8 *
       
     9 * Initial Contributors:
       
    10 * Nokia Corporation - initial contribution.
       
    11 *
       
    12 * Contributors:
       
    13 *
       
    14 * Description:
       
    15 *
       
    16 */
       
    17 
       
    18 
       
    19 #include "jutils.h"
       
    20 
       
    21 /**
       
    22  * Constuctor taking a Java JNI string and converting it to an EPOC TPtrC.
       
    23  */
       
    24 EXPORT_C RJString::RJString(JNIEnv& aJni, jstring aString)
       
    25         : iJni(aJni), iString(aString)
       
    26 {
       
    27     // Potential for a string to be NULL, but NULL cannot be passed into
       
    28     // JNI methods, so must check. If string is NULL, will result in empty string
       
    29     if (iString != NULL)
       
    30     {
       
    31         const jchar* ptr = aJni.GetStringChars(iString, NULL);
       
    32         const jint   len = aJni.GetStringLength(iString);
       
    33         if (ptr)
       
    34         {
       
    35             Set(ptr, len);
       
    36         }
       
    37     }
       
    38 }
       
    39 
       
    40 
       
    41 
       
    42 /**
       
    43  * Frees up the JNI string resources, if they need to be freed.
       
    44  */
       
    45 EXPORT_C RJString::~RJString()
       
    46 {
       
    47     if (iString != NULL)
       
    48     {
       
    49         iJni.ReleaseStringChars(iString, this->Ptr());
       
    50     }
       
    51 }