Como armazenar dados usando RMS, em Java ME - Revision history

Hamishwillee: Hamishwillee - Bot update of Template:ArticleMetaData

2011-12-18T23:05:17Z

Hamishwillee - Bot update of Template:ArticleMetaData

Hamishwillee: Hamishwillee - Bot update of Template:ArticleMetaData

2011-12-07T06:56:36Z

Hamishwillee - Bot update of Template:ArticleMetaData

Hamishwillee: Hamishwillee - Bot addition of Template:ArticleMetaData

2011-11-10T04:20:44Z

Hamishwillee - Bot addition of Template:ArticleMetaData

Hamishwillee: Hamishwillee - Automated change of category from Lang-PT to Unlikely Category. (Moving)

2011-07-14T05:14:56Z

Hamishwillee - Automated change of category from Lang-PT to Unlikely Category. (Moving)

Thiagobrunoms at 16:37, 7 October 2009

2009-10-07T16:37:19Z

Valderind4 at 02:42, 7 September 2009

2009-09-07T02:42:21Z

Valderind4: moved Como armazenar dados em RMS to Como armazenar dados usando RMS, em Java ME

2009-09-07T02:07:32Z

moved Como armazenar dados em RMS to Como armazenar dados usando RMS, em Java ME

Valderind4 at 02:05, 6 September 2009

2009-09-06T02:05:42Z

Valderind4: Created page with 'Category:Java ME (Português) Category:Lang-PT Category:Exemplos de código Java ME `import javax.microedition.rms.; import javax.microedition.midlet.; …'`


2009-09-06T02:00:36Z
Created page with 'Category:Java ME (Português) Category:Lang-PT Category:Exemplos de código Java ME  <code java> import javax.microedition.rms.*; import javax.microedition.midlet.*; …'
New page
[[Category:Java ME (Português)]]

[[Category:Lang-PT]]

[[Category:Exemplos de código Java ME]]



<code java>

import javax.microedition.rms.*;

import javax.microedition.midlet.*;

import javax.microedition.lcdui.*;

import java.io.*;

public class ReadWriteRMS

        extends MIDlet implements CommandListener {

    private Display display;

    private Alert alert;

    private Form form;

    private Command exit;

    private Command start;

    private Command delete;

    

    

    private RecordStore recordstore,recordstore1,recordstore2,recordstore3,recordstore4,recordstore5 = null;

    RecordEnumeration recEnum;

    

    public ReadWriteRMS() {

        display = Display.getDisplay(this);

        exit = new Command("Exit", Command.EXIT, 1);

        start = new Command("Start", Command.SCREEN, 1);

        delete = new Command("Delete",Command.SCREEN,2);

        form = new Form("Mixed Record");

        form.addCommand(exit);

        form.addCommand(start);

        form.addCommand(delete);

        

        form.setCommandListener(this);

    }

    public void startApp() {

        display.setCurrent(form);

    }

    public void pauseApp() {

    }

    public void destroyApp( boolean unconditional ) {

    }

    public void commandAction(Command command, Displayable displayable) {

        if (command == exit) {

            destroyApp(true);

            notifyDestroyed();

        } else if (command == start) {

            try {

                

                recordstore = RecordStore.openRecordStore("myRecordStore", true );

                recordstore1 = RecordStore.openRecordStore("1myRecordStore", true );

                recordstore2 = RecordStore.openRecordStore("2myRecordStore", true );

                recordstore3 = RecordStore.openRecordStore("3myRecordStore", true );

                

                

            } catch (Exception error) {

                error.printStackTrace();

                alert = new Alert("Error Creating", error.toString(), null, AlertType.WARNING);

                alert.setTimeout(Alert.FOREVER);

                display.setCurrent(alert);

            }

            try {

                byte[] outputRecord;

                

                

                String outputString[] = {"Rajesh","Chandra","k","Raj","Chand","k"};

                int outputInteger[] = {25,21,20,23,34,34};

                boolean outputBoolean[] = {true,false,true,true,false,true};

                

                ByteArrayOutputStream outputStream = new ByteArrayOutputStream();

                DataOutputStream outputDataStream = new DataOutputStream(outputStream);

                

                for(int i=0; i<outputString.length;i++) {

                    outputDataStream.writeUTF(outputString[i]);

                    outputDataStream.writeBoolean(outputBoolean[i]);

                    outputDataStream.writeInt(outputInteger[i]);

                    outputDataStream.flush();

                    outputRecord = outputStream.toByteArray();

                    recordstore.addRecord(outputRecord, 0, outputRecord.length);

                }

                

                outputStream.reset();

                outputStream.close();

                outputDataStream.close();

            } catch ( Exception error) {

                alert = new Alert("Error Writing",

                        error.toString(), null, AlertType.WARNING);

                alert.setTimeout(Alert.FOREVER);

                display.setCurrent(alert);

            }

            

// Read records from RMS.........

            try {

/* String inputString = null;

int inputInteger = 0;

boolean inputBoolean = false; */

                

                StringBuffer buffer = new StringBuffer();

                

                byte[] byteInputData = new byte[100];

                ByteArrayInputStream inputStream = new ByteArrayInputStream(byteInputData);

                DataInputStream inputDataStream = new DataInputStream(inputStream);

                int numrec = recordstore.getNumRecords();

                System.out.println(" Num rec "+numrec);

                for(int i=1;i<=numrec;i++) {

// recordstore.getRecord(i);

                    recordstore.getRecord(i,byteInputData,0);

                    buffer.append(inputDataStream.readUTF());

                    buffer.append("\n");

                    buffer.append(inputDataStream.readBoolean());

                    buffer.append("\n");

                    buffer.append(inputDataStream.readInt());

                    buffer.append("\n");

                    alert = new Alert("Reading", buffer.toString(),

                            null, AlertType.WARNING);

                    alert.setTimeout(Alert.FOREVER);

                    display.setCurrent(alert);

                }

/* recEnum = recordstore.enumerateRecords(null,null,false);

while (recEnum.hasNextElement())

{

recordstore.getRecord(recEnum.nextRecordId(),byteInputData,0);

buffer.append(inputDataStream.readUTF());

buffer.append("\n");

buffer.append(inputDataStream.readBoolean());

buffer.append("\n");

buffer.append(inputDataStream.readInt());

buffer.append("\n");

alert = new Alert("Reading", buffer.toString(),

null, AlertType.WARNING);

alert.setTimeout(Alert.FOREVER);

display.setCurrent(alert);

}

 */

                inputStream.close();

                inputDataStream.close();

            } catch (Exception error) {

                alert = new Alert("Error Reading",

                        error.toString(), null, AlertType.WARNING);

                alert.setTimeout(Alert.FOREVER);

                display.setCurrent(alert);

            }

            try {

                recordstore.closeRecordStore();

            } catch (Exception error) {

                alert = new Alert("Error Closing",

                        error.toString(), null, AlertType.WARNING);

                alert.setTimeout(Alert.FOREVER);

                display.setCurrent(alert);

            }

        }

        

        else if( command == delete) {

            

            if (RecordStore.listRecordStores() != null) {

                try {

                    RecordStore.deleteRecordStore("myRecordStore");

                } catch (Exception error) {

                    alert = new Alert("Error Removing",

                            error.toString(), null, AlertType.WARNING);

                    alert.setTimeout(Alert.FOREVER);

                    display.setCurrent(alert);

                }

            }

        }

    }

}

</code>

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 |translated-by=[[User:Valderind4]]
 |translated-from-title=How to store Data in RMS
-|translated-from-id=54511
+|translated-from-id=54511 <!-- automated guess -->
 |review-by=<!-- After re-review: [[User:username]] -->
 |review-timestamp=<!-- After re-review: YYYYMMDD -->
@@ Line 25: / Line 25: @@
 [[Category:Code Examples]]
 Ao executarmos determinadas aplicações em nossos dispositivos móveis, muitas das vezes se faz necessário o armazenamento de dados para um possível reúso. Em Java ME isso pode ser feito atráves da API RMS (Record Management System).

@@ Line 12: / Line 12: @@
 |id= <!-- Article Id (Knowledge base articles only) -->
 |language=Lang-Portuguese
-|translated-by= <!-- [[User: XXXXX]] -->
+|translated-by=[[User:Valderind4]]
-|translated-from-title=<!-- Title only -->
+|translated-from-title=How to store Data in RMS
-|translated-from-id= <!-- Id of translated revision -->
+|translated-from-id=54511
 |review-by=<!-- After re-review: [[User:username]] -->
 |review-timestamp=<!-- After re-review: YYYYMMDD -->
@@ Line 20: / Line 20: @@
 |update-timestamp=<!-- After significant update: YYYYMMDD -->
 |creationdate=20090906
-|author=[[User:Valderind4]]
+|author=[[User:Senthilkumar05]]
 }}[[Category:Java ME]]
 [[Category:Lang-Portuguese]]
@@ Line 200: / Line 200: @@
+}
 </code>

@@ Line 1: / Line 1: @@
-[[Category:Java ME]]
+{{ArticleMetaData
 [[Category:Lang-Portuguese]]
 [[Category:Code Examples]]

@@ Line 1: / Line 1: @@
-[[Category:Java ME (Português)]]
+[[Category:Java ME]]
-[[Category:Lang-PT]]
+[[Category:Lang-Portuguese]]
-[[Category:Exemplos de código Java ME]]
+[[Category:Code Examples]]
 Original em: [[How to store Data in RMS]]

← Older revision		Revision as of 02:42, 7 September 2009
Line 4:		Line 4:

	Original em: [[How to store Data in RMS]]		Original em: [[How to store Data in RMS]]
		+
		+	Ao executarmos determinadas aplicações em nossos dispositivos móveis, muitas das vezes, se faz necessário o armazenamento de dados, para um possível reuso. Em Java ME isso pode ser feito atráves da RMS API( Record Management System).
		+
		+	O RMS é o gestor da base de dados, e se constitui basicamente de um conjunto de ''record stores''. ''Record store'', por sua vez, nada mais é do que um conjunto de registros composto de dois campos. Um identificador( número) e um campo de dados( um array de bytes). Os ''record stores'' têm ligação direta com a MIDlet suite e não com os MIDlets, portanto se desejar que cada MIDlet da MIDlet suite, tenha o seu ''record store'', se faz necessário o uso de nomes diferentes, já que estes são ''case sensitive''. Quando a MIDlet suite é removida, o mesmo acontece com os ''record stores''.
		+
		+	A seguir temos um simples exemplo de código que nos mostra como utilizar a RMS API:

	<code java>		<code java>

Como armazenar dados usando RMS, em Java ME - Revision history

Hamishwillee: Hamishwillee - Bot update of Template:ArticleMetaData

Hamishwillee: Hamishwillee - Bot update of Template:ArticleMetaData

Hamishwillee: Hamishwillee - Bot addition of Template:ArticleMetaData

Hamishwillee: Hamishwillee - Automated change of category from Lang-PT to Unlikely Category. (Moving)

Thiagobrunoms at 16:37, 7 October 2009

Valderind4 at 02:42, 7 September 2009

Valderind4: moved Como armazenar dados em RMS to Como armazenar dados usando RMS, em Java ME

Valderind4 at 02:05, 6 September 2009

Valderind4: Created page with 'Category:Java ME (Português) Category:Lang-PT Category:Exemplos de código Java ME import javax.microedition.rms.*; import javax.microedition.midlet.*; …'

Valderind4: Created page with 'Category:Java ME (Português) Category:Lang-PT Category:Exemplos de código Java ME `import javax.microedition.rms.; import javax.microedition.midlet.; …'`