public final class FieldHandlerImpl<T> extends AbstractFieldHandler<T>
Note: the field Java type is obtained from TypeInfo.getFieldType()
,
but if the field is a collection, the actual field/accessor type is obtained
from TypeInfo.getCollectionHandler()
and the object to create (with
newInstance(Object)
) is the former field type.
_properties
Constructor and Description |
---|
FieldHandlerImpl(FieldHandler<T> handler,
TypeInfo typeInfo)
Construct a new field handler for the specified field.
|
FieldHandlerImpl(Field field,
TypeInfo typeInfo)
Construct a new field handler for the specified field.
|
FieldHandlerImpl(String fieldName,
Method[] getSequence,
Method[] setSequence,
Method getMethod,
Method setMethod,
TypeInfo typeInfo)
Construct a new field handler for the specified field that is accessed
through the accessor methods (get/set).
|
Modifier and Type | Method and Description |
---|---|
TypeConvertor |
getConvertFrom() |
TypeConvertor |
getConvertTo() |
T |
getValue(Object object)
Returns the value of the field from the object.
|
boolean |
isCollection()
Return true if the field is a collection.
|
T |
newInstance(Object parent)
Creates a new instance of the object described by this field.
|
T |
newInstance(Object parent,
Object[] args)
Creates a new instance of the object described by this field.
|
void |
resetValue(Object object)
Sets the value of the field to a default value.
|
void |
setAddMethod(Method method)
Mutator method used by
Introspector . |
void |
setConvertFrom(TypeConvertor convertor)
Sets the TypeConvertor used during calls to getValue
|
void |
setConvertTo(TypeConvertor convertor)
Sets the TypeConvertor used during calls to setValue
|
void |
setCreateMethod(Method method)
Mutator method used by
AbstractMappingLoader and
Introspector . |
void |
setEnumMethod(Method method)
Sets the enumeration method.
|
void |
setFieldDescriptor(FieldDescriptor fieldDesc)
Sets the FieldDescriptor that this FieldHander is responsibile for.
|
void |
setHasDeleteMethod(Method hasMethod,
Method deleteMethod)
Mutator method used by
AbstractMappingLoader and
Introspector . |
void |
setIterMethod(Method method)
Sets the iteration method.
|
void |
setReadMethod(Method method)
Mutator method used by
Introspector . |
void |
setValue(Object object,
T value)
Sets the value of the field on the object.
|
void |
setWriteMethod(Method method)
Mutator method used by
Introspector . |
String |
toString() |
getFieldDescriptor, hasValue, setConfiguration
checkValidity
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait
checkValidity
public FieldHandlerImpl(FieldHandler<T> handler, TypeInfo typeInfo)
handler
- typeInfo
- Type informationpublic FieldHandlerImpl(Field field, TypeInfo typeInfo) throws MappingException
field
- The field being describedtypeInfo
- Type informationMappingException
- If the field is not public, is static or transientpublic FieldHandlerImpl(String fieldName, Method[] getSequence, Method[] setSequence, Method getMethod, Method setMethod, TypeInfo typeInfo) throws MappingException
fieldName
- The field being describedgetMethod
- The method used to retrieve the field value, must accept no
parameters and have a return type castable to the field typesetMethod
- The method used to set the field value, must accept a single
parameter that is castable to the field typetypeInfo
- Type informationMappingException
- If the get or set method are not public, are static, or do not
specify the proper typespublic TypeConvertor getConvertFrom()
public TypeConvertor getConvertTo()
public T getValue(Object object)
object
- The objectFieldHandler.getValue(java.lang.Object)
public void setValue(Object object, T value)
object
- The object.value
- The new value.FieldHandler.setValue(java.lang.Object,
java.lang.Object)
public void resetValue(Object object)
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.public 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 T 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 setConvertFrom(TypeConvertor convertor)
convertor
- the TypeConvertor to use during calls to getValuepublic void setConvertTo(TypeConvertor convertor)
convertor
- the TypeConvertor to use during calls to setValuepublic void setCreateMethod(Method method) throws MappingException
AbstractMappingLoader
and
Introspector
. Please understand how this
method is used before you start playing with it! :-)MappingException
public void setHasDeleteMethod(Method hasMethod, Method deleteMethod) throws MappingException
AbstractMappingLoader
and
Introspector
. Please understand how this
method is used before you start playing with it! :-)MappingException
public void setReadMethod(Method method) throws MappingException
Introspector
. Please
understand how this method is used before you start playing with it! :-)MappingException
public void setWriteMethod(Method method) throws MappingException
Introspector
. Please
understand how this method is used before you start playing with it! :-)MappingException
public void setAddMethod(Method method) throws MappingException
Introspector
. Please
understand how this method is used before you start playing with it! :-)MappingException
public void setEnumMethod(Method method) throws MappingException
MappingException
public void setIterMethod(Method method) throws MappingException
MappingException
public boolean isCollection()
public void setFieldDescriptor(FieldDescriptor fieldDesc)
setFieldDescriptor
in class AbstractFieldHandler<T>
fieldDesc
- the FieldDescriptor to setCopyright © 2022. All rights reserved.