MethodBasedAttributeTransformer (EclipseLink 2.6.3, API Reference)

java.lang.Object
- org.eclipse.persistence.mappings.transformers.MethodBasedAttributeTransformer

All Implemented Interfaces:

java.io.Serializable, AttributeTransformer
```
public class MethodBasedAttributeTransformer
extends java.lang.Object
implements AttributeTransformer
```
Version:

$Header: MethodBasedAttributeTransformer.java 18-sep-2006.14:33:54 gyorke Exp $

See Also:
Serialized Form
Author:

mmacivor

Since:

release specific (what release of product did this appear in) This class is used to preserve the old method of doing Attribute Transformations on a transformation mapping. It is used internally when the older API is used on a TransformationMapping, and handles doing invocations on the user's domain class

Field Summary

Fields
Modifier and Type	Field and Description
`protected java.lang.reflect.Method`	`attributeTransformationMethod`
`protected AbstractTransformationMapping`	`mapping`
`protected java.lang.String`	`methodName`

Constructor Summary

Constructors
Constructor and Description

MethodBasedAttributeTransformer()

MethodBasedAttributeTransformer(java.lang.String methodName)

Constructors
Constructor and Description
`MethodBasedAttributeTransformer()`
`MethodBasedAttributeTransformer(java.lang.String methodName)`

Method Summary

Methods
Modifier and Type	Method and Description
`java.lang.Object`	`buildAttributeValue(Record record, java.lang.Object object, Session session)` INTERNAL: Build the attribute value by invoking the user's transformation method.
`java.lang.reflect.Method`	`getAttributeTransformationMethod()`
`java.lang.String`	`getMethodName()`
`void`	`initialize(AbstractTransformationMapping mapping)` INTERNAL: Initilizes the transformer.
`void`	`setAttributeTransformationMethod(java.lang.reflect.Method theMethod)`
`void`	`setMethodName(java.lang.String name)`

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Field Detail
  - attributeTransformationMethod
```
protected transient java.lang.reflect.Method attributeTransformationMethod
```
  - mapping
```
protected AbstractTransformationMapping mapping
```
  - methodName
```
protected java.lang.String methodName
```
- Constructor Detail
  - MethodBasedAttributeTransformer
```
public MethodBasedAttributeTransformer()
```
  - MethodBasedAttributeTransformer
```
public MethodBasedAttributeTransformer(java.lang.String methodName)
```
- Method Detail
  - getMethodName
```
public java.lang.String getMethodName()
```
  - setMethodName
```
public void setMethodName(java.lang.String name)
```
  - getAttributeTransformationMethod
```
public java.lang.reflect.Method getAttributeTransformationMethod()
```
  - setAttributeTransformationMethod
```
public void setAttributeTransformationMethod(java.lang.reflect.Method theMethod)
```
  - initialize
```
public void initialize(AbstractTransformationMapping mapping)
```
    INTERNAL: Initilizes the transformer. Looks up the transformation method on the domain class using reflection. This method can have either 1 or 2 parameters.
    
    Specified by:
    
    initialize in interface AttributeTransformer
    
    Parameters:
    mapping - - The mapping associated with this transformer. Only used if some special information is required.
  - buildAttributeValue
```
public java.lang.Object buildAttributeValue(Record record,
                                   java.lang.Object object,
                                   Session session)
```
    INTERNAL: Build the attribute value by invoking the user's transformation method.
    
    Specified by:
    
    buildAttributeValue in interface AttributeTransformer
    
    Parameters:
    record - - The metadata being used to build the object.
    object - - The current object that the attribute is being built for.
    session - - the current session
    
    Returns:
    - The attribute value to be built into the object containing this mapping.

Class MethodBasedAttributeTransformer

Field Summary

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Field Detail

attributeTransformationMethod

mapping

methodName

Constructor Detail

MethodBasedAttributeTransformer

MethodBasedAttributeTransformer

Method Detail

getMethodName

setMethodName

getAttributeTransformationMethod

setAttributeTransformationMethod

initialize

buildAttributeValue