Examples of org.springframework.beans.BeanWrapperImpl

org.springframework.beans.BeanWrapperImpl
Default {@link BeanWrapper} implementation that should be sufficientfor all typical use cases. Caches introspection results for efficiency.
Note: Auto-registers default property editors from the org.springframework.beans.propertyeditors package, which apply in addition to the JDK's standard PropertyEditors. Applications can call the {@link #registerCustomEditor(Class,java.beans.PropertyEditor)} methodto register an editor for a particular instance (i.e. they are not shared across the application). See the base class {@link PropertyEditorRegistrySupport} for details.
BeanWrapperImpl will convert collection and array values to the corresponding target collections or arrays, if necessary. Custom property editors that deal with collections or arrays can either be written via PropertyEditor's setValue, or against a comma-delimited String via setAsText, as String arrays are converted in such a format if the array itself is not assignable.
NOTE: As of Spring 2.5, this is - for almost all purposes - an internal class. It is just public in order to allow for access from other framework packages. For standard application access purposes, use the {@link PropertyAccessorFactory#forBeanPropertyAccess} factory method instead. @author Rod Johnson @author Juergen Hoeller @author Rob Harrop @since 15 April 2001 @see #registerCustomEditor @see #setPropertyValues @see #setPropertyValue @see #getPropertyValue @see #getPropertyType @see BeanWrapper @see PropertyEditorRegistrySupport

  public void testComplexObject() {
    TestBean tb = new TestBean();
    String newName = "Rod";
    String tbString = "Kerry_34";


    BeanWrapper bw = new BeanWrapperImpl(tb);
    bw.registerCustomEditor(ITestBean.class, new TestBeanEditor());
    MutablePropertyValues pvs = new MutablePropertyValues();
    pvs.addPropertyValue(new PropertyValue("age", new Integer(55)));
    pvs.addPropertyValue(new PropertyValue("name", newName));
    pvs.addPropertyValue(new PropertyValue("touchy", "valid"));
    pvs.addPropertyValue(new PropertyValue("spouse", tbString));
    bw.setPropertyValues(pvs);
    assertTrue("spouse is non-null", tb.getSpouse() != null);
    assertTrue("spouse name is Kerry and age is 34",
        tb.getSpouse().getName().equals("Kerry") && tb.getSpouse().getAge() == 34);
  }

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  public void testComplexObjectWithOldValueAccess() {
    TestBean tb = new TestBean();
    String newName = "Rod";
    String tbString = "Kerry_34";


    BeanWrapper bw = new BeanWrapperImpl(tb);
    bw.setExtractOldValueForEditor(true);
    bw.registerCustomEditor(ITestBean.class, new OldValueAccessingTestBeanEditor());
    MutablePropertyValues pvs = new MutablePropertyValues();
    pvs.addPropertyValue(new PropertyValue("age", new Integer(55)));
    pvs.addPropertyValue(new PropertyValue("name", newName));
    pvs.addPropertyValue(new PropertyValue("touchy", "valid"));
    pvs.addPropertyValue(new PropertyValue("spouse", tbString));


    bw.setPropertyValues(pvs);
    assertTrue("spouse is non-null", tb.getSpouse() != null);
    assertTrue("spouse name is Kerry and age is 34",
        tb.getSpouse().getName().equals("Kerry") && tb.getSpouse().getAge() == 34);
    ITestBean spouse = tb.getSpouse();


    bw.setPropertyValues(pvs);
    assertSame("Should have remained same object", spouse, tb.getSpouse());
  }

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    assertSame("Should have remained same object", spouse, tb.getSpouse());
  }


  public void testCustomEditorForSingleProperty() {
    TestBean tb = new TestBean();
    BeanWrapper bw = new BeanWrapperImpl(tb);
    bw.registerCustomEditor(String.class, "name", new PropertyEditorSupport() {
      public void setAsText(String text) throws IllegalArgumentException {
        setValue("prefix" + text);
      }
    });
    bw.setPropertyValue("name", "value");
    bw.setPropertyValue("touchy", "value");
    assertEquals("prefixvalue", bw.getPropertyValue("name"));
    assertEquals("prefixvalue", tb.getName());
    assertEquals("value", bw.getPropertyValue("touchy"));
    assertEquals("value", tb.getTouchy());
  }

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    assertEquals("value", tb.getTouchy());
  }


  public void testCustomEditorForAllStringProperties() {
    TestBean tb = new TestBean();
    BeanWrapper bw = new BeanWrapperImpl(tb);
    bw.registerCustomEditor(String.class, new PropertyEditorSupport() {
      public void setAsText(String text) throws IllegalArgumentException {
        setValue("prefix" + text);
      }
    });
    bw.setPropertyValue("name", "value");
    bw.setPropertyValue("touchy", "value");
    assertEquals("prefixvalue", bw.getPropertyValue("name"));
    assertEquals("prefixvalue", tb.getName());
    assertEquals("prefixvalue", bw.getPropertyValue("touchy"));
    assertEquals("prefixvalue", tb.getTouchy());
  }

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  }


  public void testCustomEditorForSingleNestedProperty() {
    TestBean tb = new TestBean();
    tb.setSpouse(new TestBean());
    BeanWrapper bw = new BeanWrapperImpl(tb);
    bw.registerCustomEditor(String.class, "spouse.name", new PropertyEditorSupport() {
      public void setAsText(String text) throws IllegalArgumentException {
        setValue("prefix" + text);
      }
    });
    bw.setPropertyValue("spouse.name", "value");
    bw.setPropertyValue("touchy", "value");
    assertEquals("prefixvalue", bw.getPropertyValue("spouse.name"));
    assertEquals("prefixvalue", tb.getSpouse().getName());
    assertEquals("value", bw.getPropertyValue("touchy"));
    assertEquals("value", tb.getTouchy());
  }

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  }


  public void testCustomEditorForAllNestedStringProperties() {
    TestBean tb = new TestBean();
    tb.setSpouse(new TestBean());
    BeanWrapper bw = new BeanWrapperImpl(tb);
    bw.registerCustomEditor(String.class, new PropertyEditorSupport() {
      public void setAsText(String text) throws IllegalArgumentException {
        setValue("prefix" + text);
      }
    });
    bw.setPropertyValue("spouse.name", "value");
    bw.setPropertyValue("touchy", "value");
    assertEquals("prefixvalue", bw.getPropertyValue("spouse.name"));
    assertEquals("prefixvalue", tb.getSpouse().getName());
    assertEquals("prefixvalue", bw.getPropertyValue("touchy"));
    assertEquals("prefixvalue", tb.getTouchy());
  }

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    assertEquals("prefixvalue", tb.getTouchy());
  }


  public void testDefaultBooleanEditorForPrimitiveType() {
    BooleanTestBean tb = new BooleanTestBean();
    BeanWrapper bw = new BeanWrapperImpl(tb);


    bw.setPropertyValue("bool1", "true");
    assertTrue("Correct bool1 value", Boolean.TRUE.equals(bw.getPropertyValue("bool1")));
    assertTrue("Correct bool1 value", tb.isBool1());


    bw.setPropertyValue("bool1", "false");
    assertTrue("Correct bool1 value", Boolean.FALSE.equals(bw.getPropertyValue("bool1")));
    assertTrue("Correct bool1 value", !tb.isBool1());


    bw.setPropertyValue("bool1", "  true  ");
    assertTrue("Correct bool1 value", tb.isBool1());


    bw.setPropertyValue("bool1", "  false  ");
    assertTrue("Correct bool1 value", !tb.isBool1());


    bw.setPropertyValue("bool1", "on");
    assertTrue("Correct bool1 value", tb.isBool1());


    bw.setPropertyValue("bool1", "off");
    assertTrue("Correct bool1 value", !tb.isBool1());


    bw.setPropertyValue("bool1", "yes");
    assertTrue("Correct bool1 value", tb.isBool1());


    bw.setPropertyValue("bool1", "no");
    assertTrue("Correct bool1 value", !tb.isBool1());


    bw.setPropertyValue("bool1", "1");
    assertTrue("Correct bool1 value", tb.isBool1());


    bw.setPropertyValue("bool1", "0");
    assertTrue("Correct bool1 value", !tb.isBool1());


    try {
      bw.setPropertyValue("bool1", "argh");
      fail("Should have thrown BeansException");
    }
    catch (BeansException ex) {
      // expected
    }

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    }
  }


  public void testDefaultBooleanEditorForWrapperType() {
    BooleanTestBean tb = new BooleanTestBean();
    BeanWrapper bw = new BeanWrapperImpl(tb);


    bw.setPropertyValue("bool2", "true");
    assertTrue("Correct bool2 value", Boolean.TRUE.equals(bw.getPropertyValue("bool2")));
    assertTrue("Correct bool2 value", tb.getBool2().booleanValue());


    bw.setPropertyValue("bool2", "false");
    assertTrue("Correct bool2 value", Boolean.FALSE.equals(bw.getPropertyValue("bool2")));
    assertTrue("Correct bool2 value", !tb.getBool2().booleanValue());


    bw.setPropertyValue("bool2", "on");
    assertTrue("Correct bool2 value", tb.getBool2().booleanValue());


    bw.setPropertyValue("bool2", "off");
    assertTrue("Correct bool2 value", !tb.getBool2().booleanValue());


    bw.setPropertyValue("bool2", "yes");
    assertTrue("Correct bool2 value", tb.getBool2().booleanValue());


    bw.setPropertyValue("bool2", "no");
    assertTrue("Correct bool2 value", !tb.getBool2().booleanValue());


    bw.setPropertyValue("bool2", "1");
    assertTrue("Correct bool2 value", tb.getBool2().booleanValue());


    bw.setPropertyValue("bool2", "0");
    assertTrue("Correct bool2 value", !tb.getBool2().booleanValue());


    bw.setPropertyValue("bool2", "");
    assertNull("Correct bool2 value", tb.getBool2());
  }

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    assertNull("Correct bool2 value", tb.getBool2());
  }


  public void testCustomBooleanEditorWithAllowEmpty() {
    BooleanTestBean tb = new BooleanTestBean();
    BeanWrapper bw = new BeanWrapperImpl(tb);
    bw.registerCustomEditor(Boolean.class, new CustomBooleanEditor(true));


    bw.setPropertyValue("bool2", "true");
    assertTrue("Correct bool2 value", Boolean.TRUE.equals(bw.getPropertyValue("bool2")));
    assertTrue("Correct bool2 value", tb.getBool2().booleanValue());


    bw.setPropertyValue("bool2", "false");
    assertTrue("Correct bool2 value", Boolean.FALSE.equals(bw.getPropertyValue("bool2")));
    assertTrue("Correct bool2 value", !tb.getBool2().booleanValue());


    bw.setPropertyValue("bool2", "on");
    assertTrue("Correct bool2 value", tb.getBool2().booleanValue());


    bw.setPropertyValue("bool2", "off");
    assertTrue("Correct bool2 value", !tb.getBool2().booleanValue());


    bw.setPropertyValue("bool2", "yes");
    assertTrue("Correct bool2 value", tb.getBool2().booleanValue());


    bw.setPropertyValue("bool2", "no");
    assertTrue("Correct bool2 value", !tb.getBool2().booleanValue());


    bw.setPropertyValue("bool2", "1");
    assertTrue("Correct bool2 value", tb.getBool2().booleanValue());


    bw.setPropertyValue("bool2", "0");
    assertTrue("Correct bool2 value", !tb.getBool2().booleanValue());


    bw.setPropertyValue("bool2", "");
    assertTrue("Correct bool2 value", bw.getPropertyValue("bool2") == null);
    assertTrue("Correct bool2 value", tb.getBool2() == null);
  }

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    assertEquals(falseString, editor.getAsText());
  }


  public void testDefaultNumberEditor() {
    NumberTestBean tb = new NumberTestBean();
    BeanWrapper bw = new BeanWrapperImpl(tb);


    bw.setPropertyValue("short1", "1");
    bw.setPropertyValue("short2", "2");
    bw.setPropertyValue("int1", "7");
    bw.setPropertyValue("int2", "8");
    bw.setPropertyValue("long1", "5");
    bw.setPropertyValue("long2", "6");
    bw.setPropertyValue("bigInteger", "3");
    bw.setPropertyValue("float1", "7.1");
    bw.setPropertyValue("float2", "8.1");
    bw.setPropertyValue("double1", "5.1");
    bw.setPropertyValue("double2", "6.1");
    bw.setPropertyValue("bigDecimal", "4.5");


    assertTrue("Correct short1 value", new Short("1").equals(bw.getPropertyValue("short1")));
    assertTrue("Correct short1 value", tb.getShort1() == 1);
    assertTrue("Correct short2 value", new Short("2").equals(bw.getPropertyValue("short2")));
    assertTrue("Correct short2 value", new Short("2").equals(tb.getShort2()));
    assertTrue("Correct int1 value", new Integer("7").equals(bw.getPropertyValue("int1")));
    assertTrue("Correct int1 value", tb.getInt1() == 7);
    assertTrue("Correct int2 value", new Integer("8").equals(bw.getPropertyValue("int2")));
    assertTrue("Correct int2 value", new Integer("8").equals(tb.getInt2()));
    assertTrue("Correct long1 value", new Long("5").equals(bw.getPropertyValue("long1")));
    assertTrue("Correct long1 value", tb.getLong1() == 5);
    assertTrue("Correct long2 value", new Long("6").equals(bw.getPropertyValue("long2")));
    assertTrue("Correct long2 value", new Long("6").equals(tb.getLong2()));
    assertTrue("Correct bigInteger value", new BigInteger("3").equals(bw.getPropertyValue("bigInteger")));
    assertTrue("Correct bigInteger value", new BigInteger("3").equals(tb.getBigInteger()));
    assertTrue("Correct float1 value", new Float("7.1").equals(bw.getPropertyValue("float1")));
    assertTrue("Correct float1 value", new Float("7.1").equals(new Float(tb.getFloat1())));
    assertTrue("Correct float2 value", new Float("8.1").equals(bw.getPropertyValue("float2")));
    assertTrue("Correct float2 value", new Float("8.1").equals(tb.getFloat2()));
    assertTrue("Correct double1 value", new Double("5.1").equals(bw.getPropertyValue("double1")));
    assertTrue("Correct double1 value", tb.getDouble1() == 5.1);
    assertTrue("Correct double2 value", new Double("6.1").equals(bw.getPropertyValue("double2")));
    assertTrue("Correct double2 value", new Double("6.1").equals(tb.getDouble2()));
    assertTrue("Correct bigDecimal value", new BigDecimal("4.5").equals(bw.getPropertyValue("bigDecimal")));
    assertTrue("Correct bigDecimal value", new BigDecimal("4.5").equals(tb.getBigDecimal()));
  }

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