org.springsource.loaded

Class ReflectionFieldReaderWriter

java.lang.Object

org.springsource.loaded.FieldReaderWriter

org.springsource.loaded.ReflectionFieldReaderWriter

public class ReflectionFieldReaderWriter
extends FieldReaderWriter

A FieldReaderWriter implementation that simply uses reflection to set/get the fields.

Since:

0.5.0

Field Summary

Fields inherited from class org.springsource.loaded.FieldReaderWriter

theField, typeDescriptor

Constructor Summary

Constructors

Constructor and Description
ReflectionFieldReaderWriter(java.lang.reflect.Field findField)

Method Summary

Modifier and Type	Method and Description
java.lang.Object	getStaticFieldValue(java.lang.Class<?> type, SSMgr fieldAccessor)
java.lang.Object	getValue(java.lang.Object instance, ISMgr fieldAccessor) Return the value of the field for which is reader-writer exists.
boolean	isStatic()
void	setStaticFieldValue(java.lang.Class<?> clazz, java.lang.Object newValue, SSMgr fieldAccessor)
void	setValue(java.lang.Object instance, java.lang.Object newValue, ISMgr fieldAccessor) Set the value of an instance field on the specified instance to the specified value.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

ReflectionFieldReaderWriter

public ReflectionFieldReaderWriter(java.lang.reflect.Field findField)

Method Detail

getStaticFieldValue

public java.lang.Object getStaticFieldValue(java.lang.Class<?> type,
                                            SSMgr fieldAccessor)
                                     throws java.lang.IllegalAccessException,
                                            java.lang.IllegalArgumentException

Overrides:

getStaticFieldValue in class FieldReaderWriter

Throws:

java.lang.IllegalAccessException

java.lang.IllegalArgumentException

setStaticFieldValue

public void setStaticFieldValue(java.lang.Class<?> clazz,
                                java.lang.Object newValue,
                                SSMgr fieldAccessor)
                         throws java.lang.IllegalAccessException

Overrides:

setStaticFieldValue in class FieldReaderWriter

Throws:

java.lang.IllegalAccessException

setValue

public void setValue(java.lang.Object instance,
                     java.lang.Object newValue,
                     ISMgr fieldAccessor)
              throws java.lang.IllegalAccessException

Description copied from class: FieldReaderWriter

Set the value of an instance field on the specified instance to the specified value. If a state manager is passed in things can be done in a more optimal way, otherwise the state manager has to be discovered from the instance.

Overrides:

setValue in class FieldReaderWriter

Parameters:

instance - the object instance upon which to set the field

newValue - the new value for that field

fieldAccessor - the optional state manager for this instance, which will be looked up (expensive) if not passed in

Throws:

java.lang.IllegalAccessException - if the field value cannot be set

getValue

public java.lang.Object getValue(java.lang.Object instance,
                                 ISMgr fieldAccessor)
                          throws java.lang.IllegalAccessException,
                                 java.lang.IllegalArgumentException

Description copied from class: FieldReaderWriter

Return the value of the field for which is reader-writer exists. To improve performance a fieldAccessor can be supplied but if it is missing the code will go and discover it.

Overrides:

getValue in class FieldReaderWriter

Parameters:

instance - the instance for which the field should be fetched

fieldAccessor - an optional state manager containing the map of values (will be discovered if not supplied)

Returns:

the value of the field

Throws:

java.lang.IllegalAccessException - if there is a problem accessing the field value

java.lang.IllegalArgumentException

isStatic

public boolean isStatic()

Overrides:

isStatic in class FieldReaderWriter