1 /*

     2 * Copyright (c) 2008 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:  Header file of the StringBuffer class

    15  *

    16 */

    17 

    18 

    19 ///////////////////////////////////////////////////////////////////////////////

    20 //

    21 // StringBuffer class is a simple helper utility which provides the following

    22 // functions:

    23 //

    24 // * concatenate HBufC strings

    25 // * concatenate HBufC strings with TInt

    26 // * create java string (jstring) object from HBufC

    27 // * create HBufC object from jstring java object

    28 //

    29 ///////////////////////////////////////////////////////////////////////////////

    30 #include <jni.h>

    31 #include <e32cons.h>

    32 

    33 #define KInitialSize 10

    34 

    35 class StringBuffer

    36 {

    37 public:

    38     const static TInt KBUFMAX = 10;

    39     //Method to create a new StringBuffer object

    40     static StringBuffer* NewL();

    41     //Method to append an HBufC to the buffer

    42     void Append(HBufC* what);

    43     //Method to append a TDesC to the buffer

    44     void Append(const TDesC &what);

    45     //Method to append an integer-TInt to the buffer

    46     void Append(TInt aWhat);

    47     //Method to create a java string from the c++ buffer

    48     jstring ToJavaString(JNIEnv* aJNI);

    49     //Method to get the string object stored in the buffer

    50     HBufC* GetString();

    51     //Method to create a java string from an HBufC object

    52     static jstring CreateJavaString(JNIEnv* aJNI, const HBufC* aString);

    53     //Method to create an HBufC string from a java string object

    54     static HBufC* CreateHBufCFromJavaStringLC(JNIEnv* aJNI, jstring aString);

    55     //Destructor

    56     ~StringBuffer();

    57 private:

    58     //Constructor

    59     StringBuffer();

    60     //method to construct the objects in buffer

    61     void ConstructL();

    62     //variable which stores the string in the buffer

    63     HBufC* String;

    64 };