Examples of java.beans.XMLEncoder$Record

java.beans.XMLEncoder
XMLEncoder extends Encoder to write out the encoded statements and expressions in xml format. The xml can be read by XMLDecoder later to restore objects and their states.
The API is similar to ObjectOutputStream.


    /**
     * The test checks that java.lang.String exemplar store is correct
     */
    public void testEncodeString() {
        XMLEncoder e = new XMLEncoder(System.out);
        e.setExceptionListener(new ExceptionListener() {
            public void exceptionThrown(Exception e) {
                fail("Exception " + e.getClass() + " is thrown: "
                        + e.getMessage());
            }
        });


        try {
            e.writeObject(new String("hello"));
        } finally {
            e.close();
        }
    }

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    /**
     * The test checks that array exemplar store is correct
     */
    public void testEncodeArray() {
        XMLEncoder e = new XMLEncoder(System.out);
        e.setExceptionListener(new ExceptionListener() {
            public void exceptionThrown(Exception e) {
                fail("Exception " + e.getClass() + " is thrown: "
                        + e.getMessage());
            }
        });


        try {
            e.writeObject(new int[] { 1, 2, 3 });
        } finally {
            e.close();
        }
    }

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    /**
     * The test checks that null exemplar store is correct
     */
    public void testEncodeNull() {
        XMLEncoder e = new XMLEncoder(System.out);
        e.setExceptionListener(new ExceptionListener() {
            public void exceptionThrown(Exception e) {
                fail("Exception " + e.getClass() + " is thrown: "
                        + e.getMessage());
            }
        });


        try {
            e.writeObject(null);
        } finally {
            e.close();
        }
    }

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    /**
     * The test checks that complex scenario store is correct
     */
    public void testEncodingScenario() {
        XMLEncoder e = new XMLEncoder(System.out);
        e.setExceptionListener(new ExceptionListener() {
            public void exceptionThrown(Exception e) {
                fail("Exception " + e.getClass() + " is thrown: "
                        + e.getMessage());
            }
        });


        StandardBean bean1 = new StandardBean("bean1");


        StandardBean bean2 = new StandardBean();
        bean2.setText(null);


        bean1.setPeer(bean2);
        bean2.setPeer(bean1);


        try {
            e.writeObject(bean1);
            e.writeObject(bean2);
        } finally {
            e.close();
        }
    }

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    /**
     * This is a regression test for HARMONY-5707.
     */
    public void test5707() {
        ByteArrayOutputStream baos = new ByteArrayOutputStream();
        XMLEncoder encoder = new XMLEncoder(baos);
        TstBean5707 bean1 = new TstBean5707();


        encoder.writeObject(bean1);
        encoder.close();        
    }

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        str += "=" + string((Statement) exp);
        return str;
    }


    public void testWriteExpression_Scenario1() {
        XMLEncoder xmlEncoder = new XMLEncoder((OutputStream) null);
        try {
            xmlEncoder.writeExpression((Expression) null);
            fail("should throw NullPointerException");
        } catch (NullPointerException e) {
            // Expected
        }
    }

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    return null;
  }


  public static String serializeExpression(ExprNodeDesc expr) {
    ByteArrayOutputStream baos = new ByteArrayOutputStream();
    XMLEncoder encoder = new XMLEncoder(baos);
    encoder.setPersistenceDelegate(java.sql.Date.class, new DatePersistenceDelegate());
    encoder.setPersistenceDelegate(Timestamp.class, new TimestampPersistenceDelegate());
    try {
      encoder.writeObject(expr);
    } finally {
      encoder.close();
    }
    try {
      return baos.toString("UTF-8");
    } catch (UnsupportedEncodingException ex) {
      throw new RuntimeException("UTF-8 support required", ex);

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  /**
   * Serialize the object. This helper function mainly makes sure that enums,
   * counters, etc are handled properly.
   */
  public static void serializeObject(Object plan, OutputStream out) {
    XMLEncoder e = new XMLEncoder(out);
    e.setExceptionListener(new ExceptionListener() {
      public void exceptionThrown(Exception e) {
        LOG.warn(org.apache.hadoop.util.StringUtils.stringifyException(e));
        throw new RuntimeException("Cannot serialize object", e);
      }
    });
    // workaround for java 1.5
    e.setPersistenceDelegate(ExpressionTypes.class, new EnumDelegate());
    e.setPersistenceDelegate(GroupByDesc.Mode.class, new EnumDelegate());
    e.setPersistenceDelegate(Operator.ProgressCounter.class, new EnumDelegate());
    e.setPersistenceDelegate(java.sql.Date.class, new DatePersistenceDelegate());
    e.setPersistenceDelegate(Timestamp.class, new TimestampPersistenceDelegate());


    e.setPersistenceDelegate(org.datanucleus.store.types.backed.Map.class, new MapDelegate());
    e.setPersistenceDelegate(org.datanucleus.store.types.backed.List.class, new ListDelegate());
    e.setPersistenceDelegate(org.antlr.runtime.CommonToken.class, new CommonTokenDelegate());


    e.writeObject(plan);
    e.close();
  }

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                }
                closeCalled = true;
                super.close();
            }
        };
        XMLEncoder enc = new XMLEncoder(out);
        enc.writeObject(new Integer(3));
        assertEquals(0, out.size());


        enc.close();


        assertTrue(out.size() > 0);
        try {
            out.close();
            fail();

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        }
    }


    public void testFlush() {
        ByteArrayOutputStream out = new ByteArrayOutputStream();
        XMLEncoder enc = new XMLEncoder(out);
        Integer i = new Integer(3);
        enc.writeObject(i);
        assertEquals(0, out.size());
        assertNotNull(enc.get(i));


        enc.flush();


        assertTrue(out.size() > 0);
        assertNull(enc.get(i));
    }

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