Examples of ObjectStreamClass

com.sun.corba.se.impl.io.ObjectStreamClass
A ObjectStreamClass describes a class that can be serialized to a stream or a class that was serialized to a stream. It contains the name and the serialVersionUID of the class.
The ObjectStreamClass for a specific class loaded in this Java VM can be found using the lookup method. @author Roger Riggs @since JDK1.1
java.io.ObjectStreamClass
Instances of ObjectStreamClass are used to describe classes of objects used by serialization. When objects are saved, information about all its superclasses is also saved by the use of descriptors, instances of ObjectStreamClass. These descriptors carry information about the class they represent, such as - The name of the class - SUID of the class - Field names and types @see ObjectOutputStream @see ObjectInputStream @see java.lang.Class

Examples of java.io.ObjectStreamClass


        long clsHash = getClassHashCode(cls);


        b.append(':').append(toHexString(clsHash));


        ObjectStreamClass osClass = ObjectStreamClass.lookup(cls);
        if (osClass != null) {
            long serialVersionUID = osClass.getSerialVersionUID();


            if (clsHash != serialVersionUID)
                b.append(':').append(toHexString(serialVersionUID));
        }

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Examples of java.io.ObjectStreamClass

        throws DatabaseException, ClassNotFoundException {


        /* First check the map and, if found, add class info to the map. */


        BigInteger classIDObj = new BigInteger(classID);
        ObjectStreamClass classFormat = formatMap.get(classIDObj);
        if (classFormat == null) {


            /* Make the class format key. */


            byte[] keyBytes = new byte[classID.length + 1];

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Examples of java.io.ObjectStreamClass

                 * Read class info to get the class format key, then read class
                 * format.
                 */
                classInfo = new ClassInfo(data);
                DatabaseEntry formatData = new DatabaseEntry();
                ObjectStreamClass storedClassFormat =
                    getClassFormat(classInfo.getClassID(), formatData);


                /*
                 * Compare the stored class format to the current class format,
                 * and if they are different then generate a new class ID.

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Examples of java.io.ObjectStreamClass

      ClassNotFoundException {


    ByteArrayOutputStream baos = new ByteArrayOutputStream();
    ObjectOutputStreamWithWriteDesc1 oos = new ObjectOutputStreamWithWriteDesc1(
        baos);
    ObjectStreamClass desc = ObjectStreamClass
    .lookup(TestClassForSerialization.class);
    oos.writeClassDescriptor(desc);
    oos.close();


        byte[] bytes = baos.toByteArray();
    ByteArrayInputStream bais = new ByteArrayInputStream(bytes);
    ObjectIutputStreamWithReadDesc1 ois = new ObjectIutputStreamWithReadDesc1(
        bais);
    Object obj = ois.readClassDescriptor();
    ois.close();
    assertEquals(desc.getClass(), obj.getClass());


        //eof
        bais = new ByteArrayInputStream(bytes);
        ExceptionalBufferedInputStream bis = new ExceptionalBufferedInputStream(
                bais);

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Examples of java.io.ObjectStreamClass

        }


        @Override
        public ObjectStreamClass readClassDescriptor() throws IOException,
                ClassNotFoundException {
            ObjectStreamClass osc = super.readClassDescriptor();


            if (osc.getName().equals(returnClass.getName())) {
                return ObjectStreamClass.lookup(returnClass);
            }
            return osc;
        }

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Examples of java.io.ObjectStreamClass

    /**
     * @tests serilization
     */
    public void test_objectStreamClass_getFields() throws Exception {
        // Regression for HARMONY-2674
        ObjectStreamClass objectStreamClass = ObjectStreamClass
                .lookup(File.class);
        ObjectStreamField[] objectStreamFields = objectStreamClass.getFields();
        assertEquals(1, objectStreamFields.length);
        ObjectStreamField objectStreamField = objectStreamFields[0];
        assertEquals("path", objectStreamField.getName());
        assertEquals(String.class, objectStreamField.getType());
    }

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Examples of java.io.ObjectStreamClass

      ClassNotFoundException {


    ByteArrayOutputStream baos = new ByteArrayOutputStream();
    ObjectOutputStreamWithWriteDesc1 oos = new ObjectOutputStreamWithWriteDesc1(
        baos);
    ObjectStreamClass desc = ObjectStreamClass
    .lookup(TestClassForSerialization.class);
    oos.writeClassDescriptor(desc);
    oos.close();
    
        byte[] bytes = baos.toByteArray();
    ByteArrayInputStream bais = new ByteArrayInputStream(bytes);
    ObjectIutputStreamWithReadDesc1 ois = new ObjectIutputStreamWithReadDesc1(
        bais);
    Object obj = ois.readClassDescriptor();
    ois.close();
    assertEquals(desc.getClass(), obj.getClass());
        
        //eof
        bais = new ByteArrayInputStream(bytes);
        ExceptionalBufferedInputStream bis = new ExceptionalBufferedInputStream(
                bais);

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Examples of java.io.ObjectStreamClass

            this.returnClass = returnClass;
        }


        public ObjectStreamClass readClassDescriptor() throws IOException,
                ClassNotFoundException {
            ObjectStreamClass osc = super.readClassDescriptor();


            if (osc.getName().equals(returnClass.getName())) {
                return ObjectStreamClass.lookup(returnClass);
            }
            return osc;
        }

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Examples of java.io.ObjectStreamClass

    /**
     * @tests serilization
     */
    public void test_objectStreamClass_getFields() throws Exception {
        //Regression for HARMONY-2674
        ObjectStreamClass objectStreamClass = ObjectStreamClass
                .lookup(File.class);
        ObjectStreamField[] objectStreamFields = objectStreamClass.getFields();
        assertEquals(1, objectStreamFields.length);
        ObjectStreamField objectStreamField = objectStreamFields[0];
        assertEquals("path", objectStreamField.getName());
        assertEquals(String.class, objectStreamField.getType());
    }

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Examples of java.io.ObjectStreamClass

                PATTERNSYNTAXEXCEPTION_COMPARATOR);
    }
    
    //Regression test for HARMONY-3787
    public void test_objectStreamField() {
        ObjectStreamClass objectStreamClass = ObjectStreamClass
                .lookup(PatternSyntaxException.class);
        assertNotNull(objectStreamClass.getField("desc"));
    }

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