com.impetus.kundera.property

Class PropertyAccessorHelper

java.lang.Object

com.impetus.kundera.property.PropertyAccessorHelper

public class PropertyAccessorHelper
extends Object

Helper class to access fields.

Author:

animesh.kumar

Constructor Summary

Constructors

Constructor and Description
PropertyAccessorHelper()

Method Summary

Methods

Modifier and Type	Method and Description
static Object	fromDate(Class<?> targetClass, Class<?> sourceClass, Object o)
static Object	fromSourceToTargetClass(Class<?> targetClass, Class<?> sourceClass, Object o)
static byte[]	get(Object from, Field field) Gets field value as byte-array.
static byte[]	getBytes(Object o)
static Collection	getCollectionInstance(Field collectionField)
static Field[]	getDeclaredFields(Field relationalField) Gets the declared fields.
static Class<?>	getGenericClass(Field collectionField) Retrieves Generic class from a collection field that has only one argument.
static List<Class<?>>	getGenericClasses(Field collectionField) Retrieves Generic class from a collection field that has only one argument.
static Object	getId(Object entity, EntityMetadata metadata) Get identifier of an entity object by invoking getXXX() method.
static Object	getObject(Class<?> clazz)
static Object	getObject(Class clazz, byte[] b)
static Object	getObject(Object from, Field field) Gets object from field.
static Object	getObject(Object obj, String fieldName) Gets the embedded object.
static Object	getObjectCopy(Object from, Field field) Retutrns copy of object
static String	getString(Object o)
static String	getString(Object from, Field field) Gets the string.
private static Class<?>	getTypedClass(Type type) Gets the typed class.
static boolean	isCollection(Class<?> clazz) Checks if is collection.
static void	set(Object target, Field field, byte[] bytes) Sets a byte-array onto a field.
static void	set(Object target, Field field, Object value) Sets an object onto a field.
static void	set(Object target, Field field, String fieldVal) Sets a byte-array onto a field.
static void	setId(Object entity, EntityMetadata metadata, byte[] rowKey) Sets Primary Key (Row key) into entity field that was annotated with @Id.
static void	setId(Object entity, EntityMetadata metadata, Object rowKey) Sets Primary Key (Row key) into entity field that was annotated with @Id.
static byte[]	toBytes(Object o, Class c)
static byte[]	toBytes(Object o, Field f)
private static Class<?>	toClass(Type o) Borrowed from java.lang.class

Methods inherited from class java.lang.Object

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

Constructor Detail

PropertyAccessorHelper

public PropertyAccessorHelper()

Method Detail

set

public static void set(Object target,
       Field field,
       byte[] bytes)

Sets a byte-array onto a field.

Parameters:

target - the target

field - the field

bytes - the bytes

Throws:

PropertyAccessException - the property access exception

set

public static void set(Object target,
       Field field,
       String fieldVal)

Sets a byte-array onto a field.

Parameters:

target - the target

field - the field

fieldVal - the field value

Throws:

PropertyAccessException - the property access exception

set

public static void set(Object target,
       Field field,
       Object value)

Sets an object onto a field.

Parameters:

target - the target

field - the field

value - the value

Throws:

PropertyAccessException - the property access exception

getObject

public static Object getObject(Object from,
               Field field)

Gets object from field.

Parameters:

from - the from

field - the field

Returns:

the object

Throws:

PropertyAccessException - the property access exception

getObjectCopy

public static Object getObjectCopy(Object from,
                   Field field)

Retutrns copy of object

Parameters:

from -

field -

Returns:

getString

public static String getString(Object from,
               Field field)

Gets the string.

Parameters:

from - the from

field - the field

Returns:

the string

Throws:

PropertyAccessException - the property access exception

get

public static byte[] get(Object from,
         Field field)

Gets field value as byte-array.

Parameters:

from - the from

field - the field

Returns:

the byte[]

Throws:

PropertyAccessException - the property access exception

getId

public static Object getId(Object entity,
           EntityMetadata metadata)

Get identifier of an entity object by invoking getXXX() method.

Parameters:

entity - the entity

metadata - the metadata

Returns:

the id

Throws:

PropertyAccessException - the property access exception

setId

public static void setId(Object entity,
         EntityMetadata metadata,
         Object rowKey)

Sets Primary Key (Row key) into entity field that was annotated with @Id.

Parameters:

entity - the entity

metadata - the metadata

rowKey - the row key

Throws:

PropertyAccessException - the property access exception

setId

public static void setId(Object entity,
         EntityMetadata metadata,
         byte[] rowKey)

Sets Primary Key (Row key) into entity field that was annotated with @Id.

Parameters:

entity - the entity

metadata - the metadata

rowKey - the row key

Throws:

PropertyAccessException - the property access exception

getObject

public static final Object getObject(Object obj,
               String fieldName)

Gets the embedded object.

Parameters:

obj - the obj

fieldName - the field name

Returns:

the embedded object

Throws:

PropertyAccessException - the property access exception

getGenericClass

public static Class<?> getGenericClass(Field collectionField)

Retrieves Generic class from a collection field that has only one argument.

Parameters:

collectionField - the collection field

Returns:

the generic class

getGenericClasses

public static List<Class<?>> getGenericClasses(Field collectionField)

Retrieves Generic class from a collection field that has only one argument.

Parameters:

collectionField - the collection field

Returns:

the generic class

getDeclaredFields

public static Field[] getDeclaredFields(Field relationalField)

Gets the declared fields.

Parameters:

relationalField - the relational field

Returns:

the declared fields

isCollection

public static final boolean isCollection(Class<?> clazz)

Checks if is collection.

Parameters:

clazz - the clazz

Returns:

true, if is collection

getObject

public static final Object getObject(Class<?> clazz)

toBytes

public static final byte[] toBytes(Object o,
             Field f)

toBytes

public static final byte[] toBytes(Object o,
             Class c)

fromSourceToTargetClass

public static Object fromSourceToTargetClass(Class<?> targetClass,
                             Class<?> sourceClass,
                             Object o)

fromDate

public static Object fromDate(Class<?> targetClass,
              Class<?> sourceClass,
              Object o)

getBytes

public static byte[] getBytes(Object o)

getString

public static String getString(Object o)

getObject

public static Object getObject(Class clazz,
               byte[] b)

getCollectionInstance

public static final Collection getCollectionInstance(Field collectionField)

toClass

private static Class<?> toClass(Type o)

Borrowed from java.lang.class

Parameters:

o -

Returns:

getTypedClass

private static Class<?> getTypedClass(Type type)

Gets the typed class.

Parameters:

type - the type

Returns:

the typed class