Examples of java.io.ObjectOutputStream.writeObject()

java.io.ObjectOutputStream.writeObject()
Write object object into the receiver's underlying stream. @param object The object to write @throws IOException If an IO exception happened when writing the object @see ObjectInputStream#readObject()

  public void save(Serializable obj,
                   String dirName, String name,
                   boolean first) throws IOException {
    ByteArrayOutputStream bos = new ByteArrayOutputStream();
    ObjectOutputStream oos = new ObjectOutputStream(bos);
    oos.writeObject(obj);
    oos.flush();
    saveByteArray(bos.toByteArray(), dirName, name);
  }


  public final void createByteArray(byte[] buf, String name) throws IOException {

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                                                               RuleBase ruleBase,
                                                               boolean dispose) throws Exception {
        // Serialize to a byte array
        ByteArrayOutputStream bos = new ByteArrayOutputStream();
        ObjectOutput out = new ObjectOutputStream( bos );
        out.writeObject( session );
        out.close();
        bos.close();


        // Get the bytes of the serialized object
        final byte[] b1 = bos.toByteArray();

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        StatefulSession session2 = ruleBase.newStatefulSession( bais );
        bais.close();


        bos = new ByteArrayOutputStream();
        out = new ObjectOutputStream( bos );
        out.writeObject( session2 );
        out.close();
        bos.close();


        final byte[] b2 = bos.toByteArray();

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  OutputStream os = new FileOutputStream(sFile);
  if (sFile.getName().endsWith(".gz")) {
    os = new GZIPOutputStream(os);
  }
  ObjectOutputStream objectOutputStream = new ObjectOutputStream(os);
  objectOutputStream.writeObject(classifier);
  if (trainHeader != null) objectOutputStream.writeObject(trainHeader);
  objectOutputStream.flush();
  objectOutputStream.close();
      } catch (Exception e) {

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  if (sFile.getName().endsWith(".gz")) {
    os = new GZIPOutputStream(os);
  }
  ObjectOutputStream objectOutputStream = new ObjectOutputStream(os);
  objectOutputStream.writeObject(classifier);
  if (trainHeader != null) objectOutputStream.writeObject(trainHeader);
  objectOutputStream.flush();
  objectOutputStream.close();
      } catch (Exception e) {
  
  JOptionPane.showMessageDialog(null, e, "Save Failed",

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    public static byte[] toBytes(final BindingVariable bindingVar, final XQExpression bodyExpr) {
        final FastByteArrayOutputStream bos = new FastByteArrayOutputStream(8192);
        try {
            final ObjectOutputStream oos = new ObjectOutputStream(bos);
            oos.writeObject(bodyExpr);
            oos.writeObject(bindingVar);
            oos.flush();
        } catch (IOException e) {
            LOG.error(e.getMessage(), e);
            throw new IllegalStateException(e);

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    public static byte[] toBytes(final BindingVariable bindingVar, final XQExpression bodyExpr) {
        final FastByteArrayOutputStream bos = new FastByteArrayOutputStream(8192);
        try {
            final ObjectOutputStream oos = new ObjectOutputStream(bos);
            oos.writeObject(bodyExpr);
            oos.writeObject(bindingVar);
            oos.flush();
        } catch (IOException e) {
            LOG.error(e.getMessage(), e);
            throw new IllegalStateException(e);
        }

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    public void test1() throws IOException, ClassNotFoundException {
        FastByteArrayOutputStream f = new FastByteArrayOutputStream();


        ObjectOutputStream out = new ObjectOutputStream(f);
        Student student1 = new Student("Chris", "Giroir", "111111", "elkfjwe", "wifjew");
        out.writeObject(student1);
        out.writeInt(5);
        out.close();


        out = new NoHeaderObjectOutputStream(f);
        Student student2 = new Student("Chris2", "Giroir2", "elkfjwe", "111111");

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        out.writeInt(5);
        out.close();


        out = new NoHeaderObjectOutputStream(f);
        Student student2 = new Student("Chris2", "Giroir2", "elkfjwe", "111111");
        out.writeObject(student2);
        out.close();


        final byte[] b = f.toByteArray();


        FastByteArrayInputStream in = new FastByteArrayInputStream(b);

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    public void test2() throws IOException, ClassNotFoundException {
        FastByteArrayOutputStream f = new FastByteArrayOutputStream();


        ObjectOutputStream out = new ObjectOutputStream(f);
        Student student1 = new Student("Chris", "Giroir", "111111", "elkfjwe", "wifjew");
        out.writeObject(student1);
        out.writeInt(5);


        FastByteArrayOutputStream out2 = new FastByteArrayOutputStream();
        ObjectOutputStream oos2 = new ObjectOutputStream(out2);
        Student student2 = new Student("Chris2", "Giroir2", "elkfjwe", "111111");

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