public class XMLFieldHandler<T> extends AbstractFieldHandler<T>
A field handler knows how to perform various operations on the field that require access to the field value.
FieldDescriptor
_properties
Constructor and Description |
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XMLFieldHandler()
Creates a new default XMLFieldHandler instance.
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Modifier and Type | Method and Description |
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boolean |
equals(Object obj)
Returns true if the given object is an XMLFieldHandler that is equivalent
to this one.
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T |
getValue(Object object)
Returns the value of the field from the object.
|
T |
newInstance(Object parent)
Creates a new instance of the object described by this field.
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Object |
newInstance(Object parent,
Object[] args)
Creates a new instance of the object described by this field.
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void |
resetValue(Object object)
Sets the value of the field to a default value.
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void |
setValue(Object object,
T value)
Sets the value of the field on the object.
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getFieldDescriptor, hasValue, setConfiguration, setFieldDescriptor
checkValidity
clone, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
checkValidity
public XMLFieldHandler()
public boolean equals(Object obj)
public T getValue(Object object) throws IllegalStateException
object
- The objectIllegalStateException
- The Java object has changed and is no longer supported by this
handler, or the handler is not compatiable with the Java objectpublic T newInstance(Object parent) throws IllegalStateException
parent
- The object for which the field is createdIllegalStateException
- This field is a simple type and cannot be instantiatedpublic Object newInstance(Object parent, Object[] args) throws IllegalStateException
newInstance
in class ExtendedFieldHandler<T>
parent
- The object for which the field is createdargs
- the set of constructor argumentsIllegalStateException
- This field is a simple type and cannot be instantiatedpublic void setValue(Object object, T value) throws IllegalStateException, IllegalArgumentException
object
- The object.value
- The new value.IllegalStateException
- The Java object has changed and is no longer supported by this
handler, or the handler is not compatiable with the Java
object.IllegalArgumentException
- The value passed is not of a supported type.public void resetValue(Object object) throws IllegalStateException, IllegalArgumentException
FieldHandler
Reference fields are set to null, primitive fields are set to their default value, collection fields are emptied of all elements.
object
- The object.IllegalStateException
- The Java object has changed and is no longer supported by this
handler, or the handler is not compatible with the Java object.IllegalArgumentException
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