com.sun.jdo.spi.persistence.support.ejb.cmp
Class JDOEJB11HelperImpl

java.lang.Object
  com.sun.jdo.spi.persistence.support.ejb.cmp.JDOEJB11HelperImpl

All Implemented Interfaces:

JDOEJB11Helper

Direct Known Subclasses:

JDOEJB20HelperImpl

public abstract class JDOEJB11HelperImpl
extends Object
implements JDOEJB11Helper

Field Summary

protected static Logger	logger
protected static ResourceBundle	messages I18N message handler

Constructor Summary

JDOEJB11HelperImpl()

Method Summary

abstract void	assertInstanceOfRemoteInterfaceImpl(Object o) Validates that this instance is of the correct implementation class of a remote interface type.
protected void	assertInstanceOfRemoteInterfaceImpl(Object o, String beanName) Validates that this instance is of the correct implementation class of bean remote interface.
protected void	assertObjectIdNotNull(Object oid) Validates that the object id instance is not null.
void	assertPrimaryKeyFieldNotNull(Object pkfield, String pkfieldName, String beanName) Validates that the primary key field of an Object type is not null.
protected void	assertPrimaryKeyNotNull(Object pk) Validates that the primary key instance is not null.
Collection	convertCollectionEJBObjectToPC(Collection coll, PersistenceManager pm, boolean validate) Converts Collection of EJBObjects to a Collection of persistence-capable instances.
Collection	convertCollectionObjectIdToPrimaryKey(Collection oids) Converts Collection of Object Id's of persistence-capable instances to a Collection of of the PrimaryKey instances.
Collection	convertCollectionPCToEJBObject(Collection pcs, PersistenceManager pm) Converts Collection of persistence-capable instances to a Collection of EJBObjects.
Set	convertCollectionPCToEJBObjectSet(Collection pcs, PersistenceManager pm) Converts Collection of persistence-capable instances to a Set of EJBObjects.
Collection	convertCollectionPCToPrimaryKey(Collection pcs, PersistenceManager pm) Converts Collection of persistence-capable instances to a Collection of the PrimaryKey Class instances.
Collection	convertCollectionPrimaryKeyToObjectId(Collection keys) Converts Collection of PrimaryKey instances to a Collection of Object Id's of a corresponding persistence-capable Class.
Object	convertEJBObjectToPC(EJBObject o, PersistenceManager pm, boolean validate) Converts EJBObject to persistence-capable instance.
abstract Object	convertObjectIdToPrimaryKey(Object objectId) Converts Object Id of a persistence-capable instance to an instance of the PrimaryKey Class.
EJBObject	convertPCToEJBObject(Object pc, PersistenceManager pm) Converts persistence-capable instance to EJBObject.
Object	convertPCToPrimaryKey(Object pc, PersistenceManager pm) Converts persistence-capable instance to an instance of the PrimaryKey Class.
abstract Object	convertPrimaryKeyToObjectId(Object key) Converts instance of a PrimaryKey Class to an instance of the Object Id of a corresponding persistence-capable Class.
protected Object	convertPrimaryKeyToPC(Object key, PersistenceManager pm, boolean validate) Converts PrimaryKey object to persistence-capable instance.
NumericConverter	getNumericConverter() Return NumericConverter for conversion from Number to BigDecimal or BigInteger for this bean type.
abstract Class	getPCClass() Returns the class object of the corresponding persistence-capable class of the concrete bean class.
Serializable	readSerializableObjectFromByteArray(byte[] byteArray) Constructs a Serializable object from byteArray.
byte[]	writeSerializableObjectToByteArray(Serializable serializableObject) Serializes serializableObject into a byte array

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.sun.jdo.spi.persistence.support.sqlstore.ejb.JDOEJB11Helper

getContainer

Field Detail

messages

protected static final ResourceBundle messages

I18N message handler

logger

protected static final Logger logger

Constructor Detail

JDOEJB11HelperImpl

public JDOEJB11HelperImpl()

Method Detail

convertPCToEJBObject

public EJBObject convertPCToEJBObject(Object pc,
                                      PersistenceManager pm)

Converts persistence-capable instance to EJBObject.

Specified by:

convertPCToEJBObject in interface JDOEJB11Helper

Parameters:

pc - the persistence-capable instance to be converted as an Object.

pm - the associated instance of PersistenceManager.

Returns:

instance of EJBObject.

convertEJBObjectToPC

public Object convertEJBObjectToPC(EJBObject o,
                                   PersistenceManager pm,
                                   boolean validate)

Converts EJBObject to persistence-capable instance.

Specified by:

convertEJBObjectToPC in interface JDOEJB11Helper

Parameters:

o - the EJBObject instance to be converted.

pm - the associated instance of PersistenceManager.

validate - true if the existence of the instance is to be validated.

Returns:

persistence-capable instance.

Throws:

IllegalArgumentException - if validate is true and instance does not exist in the database or is deleted.

convertPrimaryKeyToPC

protected Object convertPrimaryKeyToPC(Object key,
                                       PersistenceManager pm,
                                       boolean validate)

Converts PrimaryKey object to persistence-capable instance.

Parameters:

key - the PrimaryKey object to be converted.

pm - the associated instance of PersistenceManager.

validate - true if the existence of the instance is to be validated.

Returns:

persistence-capable instance.

Throws:

IllegalArgumentException - if validate is true and instance does not exist in the database or is deleted.

convertCollectionPCToEJBObject

public Collection convertCollectionPCToEJBObject(Collection pcs,
                                                 PersistenceManager pm)

Converts Collection of persistence-capable instances to a Collection of EJBObjects.

Specified by:

convertCollectionPCToEJBObject in interface JDOEJB11Helper

Parameters:

pcs - the Collection of persistence-capable instance to be converted.

pm - the associated instance of PersistenceManager.

Returns:

Collection of EJBObjects.

convertCollectionPCToEJBObjectSet

public Set convertCollectionPCToEJBObjectSet(Collection pcs,
                                             PersistenceManager pm)

Converts Collection of persistence-capable instances to a Set of EJBObjects.

Specified by:

convertCollectionPCToEJBObjectSet in interface JDOEJB11Helper

Parameters:

pcs - the Collection of persistence-capable instance to be converted.

pm - the associated instance of PersistenceManager.

Returns:

Set of EJBObjects.

convertCollectionEJBObjectToPC

public Collection convertCollectionEJBObjectToPC(Collection coll,
                                                 PersistenceManager pm,
                                                 boolean validate)

Converts Collection of EJBObjects to a Collection of persistence-capable instances.

Specified by:

convertCollectionEJBObjectToPC in interface JDOEJB11Helper

Parameters:

coll - the Collection of EJBObject instances to be converted.

pm - the associated instance of PersistenceManager.

validate - true if the existence of the instances is to be validated.

Returns:

Collection of persistence-capable instance.

Throws:

IllegalArgumentException - if validate is true and at least one instance does not exist in the database or is deleted.

convertPCToPrimaryKey

public Object convertPCToPrimaryKey(Object pc,
                                    PersistenceManager pm)

Converts persistence-capable instance to an instance of the PrimaryKey Class.

Specified by:

convertPCToPrimaryKey in interface JDOEJB11Helper

Parameters:

pc - the persistence-capable instance to be converted as an Object.

pm - the associated instance of PersistenceManager.

Returns:

instance of the PrimaryKey Class.

convertCollectionPCToPrimaryKey

public Collection convertCollectionPCToPrimaryKey(Collection pcs,
                                                  PersistenceManager pm)

Converts Collection of persistence-capable instances to a Collection of the PrimaryKey Class instances.

Specified by:

convertCollectionPCToPrimaryKey in interface JDOEJB11Helper

Parameters:

pcs - Collection of the persistence-capable instances.

pm - the associated instance of PersistenceManager.

Returns:

Collection of the PrimaryKey Class instances.

convertObjectIdToPrimaryKey

public abstract Object convertObjectIdToPrimaryKey(Object objectId)

Converts Object Id of a persistence-capable instance to an instance of the PrimaryKey Class.

Specified by:

convertObjectIdToPrimaryKey in interface JDOEJB11Helper

Parameters:

objectId - the Object Id to be converted.

Returns:

instance of the PrimaryKey Class.

convertPrimaryKeyToObjectId

public abstract Object convertPrimaryKeyToObjectId(Object key)

Converts instance of a PrimaryKey Class to an instance of the Object Id of a corresponding persistence-capable Class.

Specified by:

convertPrimaryKeyToObjectId in interface JDOEJB11Helper

Parameters:

key - the PrimaryKey instance to be converted.

Returns:

instance of the Object Id.

convertCollectionObjectIdToPrimaryKey

public Collection convertCollectionObjectIdToPrimaryKey(Collection oids)

Converts Collection of Object Id's of persistence-capable instances to a Collection of of the PrimaryKey instances.

Specified by:

convertCollectionObjectIdToPrimaryKey in interface JDOEJB11Helper

Parameters:

oids - Collection of the Object Id to be converted.

Returns:

Collection of of the PrimaryKey Class instances.

convertCollectionPrimaryKeyToObjectId

public Collection convertCollectionPrimaryKeyToObjectId(Collection keys)

Converts Collection of PrimaryKey instances to a Collection of Object Id's of a corresponding persistence-capable Class.

Specified by:

convertCollectionPrimaryKeyToObjectId in interface JDOEJB11Helper

Parameters:

keys - Collection of the PrimaryKey instances to be converted.

Returns:

Collection of the Object Id's.

writeSerializableObjectToByteArray

public byte[] writeSerializableObjectToByteArray(Serializable serializableObject)

Serializes serializableObject into a byte array

Specified by:

writeSerializableObjectToByteArray in interface JDOEJB11Helper

Parameters:

serializableObject - Instance of a Serializable Object

Returns:

serializableObject serialized into a byte array

readSerializableObjectFromByteArray

public Serializable readSerializableObjectFromByteArray(byte[] byteArray)

Constructs a Serializable object from byteArray. It is expected that byteArray was constructed using a previous call to writeSerializableObjectToByteArray

Specified by:

readSerializableObjectFromByteArray in interface JDOEJB11Helper

Parameters:

byteArray - Array of byte obtained from a call to writeSerializableObjectToByteArray

Returns:

A Serializable object contructed from byteArray

See Also:

writeSerializableObjectToByteArray(Serializable)

getNumericConverter

public NumericConverter getNumericConverter()

Return NumericConverter for conversion from Number to BigDecimal or BigInteger for this bean type. It is responsible for passing the correct policy value to the NumericConverterFactory.

Specified by:

getNumericConverter in interface JDOEJB11Helper

Returns:

NumericConverter for given object policy

getPCClass

public abstract Class getPCClass()

Returns the class object of the corresponding persistence-capable class of the concrete bean class.

Specified by:

getPCClass in interface JDOEJB11Helper

Returns:

the pc class object

assertInstanceOfRemoteInterfaceImpl

public abstract void assertInstanceOfRemoteInterfaceImpl(Object o)

Validates that this instance is of the correct implementation class of a remote interface type.

Specified by:

assertInstanceOfRemoteInterfaceImpl in interface JDOEJB11Helper

Parameters:

o - the instance to validate.

Throws:

IllegalArgumentException - if validation fails.

assertInstanceOfRemoteInterfaceImpl

protected void assertInstanceOfRemoteInterfaceImpl(Object o,
                                                   String beanName)

Validates that this instance is of the correct implementation class of bean remote interface. Throws IllegalArgumentException if the argument is of a wrong type.

Parameters:

o - the instance to validate.

beanName - as String.

Throws:

IllegalArgumentException - if validation fails.

assertPrimaryKeyNotNull

protected void assertPrimaryKeyNotNull(Object pk)

Validates that the primary key instance is not null. Throws IllegalArgumentException otherwise.

Parameters:

pk - the primary key instance to validate.

Throws:

IllegalArgumentException - if validation fails.

assertPrimaryKeyFieldNotNull

public void assertPrimaryKeyFieldNotNull(Object pkfield,
                                         String pkfieldName,
                                         String beanName)

Validates that the primary key field of an Object type is not null. Throws IllegalArgumentException otherwise.

Parameters:

pkfield - the primary key field instance to validate.

pkfieldName - the primary key field name.

beanName - the EJB name.

Throws:

IllegalArgumentException - if validation fails.

assertObjectIdNotNull

protected void assertObjectIdNotNull(Object oid)

Validates that the object id instance is not null. Throws JDOFatalInternalException otherwise.

Parameters:

oid - the object id instance to validate.

Throws:

JDOFatalInternalException - if validation fails.