org.datanucleus.metadata

Class PersistenceFlags

java.lang.Object

org.datanucleus.metadata.PersistenceFlags

public class PersistenceFlags
extends Object

Series of flag settings used in the persistence process. Copied from javax.jdo.spi.PersistenceCapable for when we don't need jdo.jar present.

Field Summary

Fields

Modifier and Type	Field and Description
static byte	CHECK_READ If the flags for a field includes CHECK_READ, then the field has been enhanced to call the StateManager on read if the jdoFlags setting is not READ_OK or READ_WRITE_OK.
static byte	CHECK_WRITE If the flags for a field includes CHECK_WRITE, then the field has been enhanced to call the StateManager on write if the jpoxFlags setting is not READ_WRITE_OK;.
static byte	LOAD_REQUIRED If StateManager persistenceFlags is set to LOAD_REQUIRED, then the fields in the default fetch group cannot be accessed for read or write without notifying the StateManager.
static byte	MEDIATE_READ If the flags for a field includes MEDIATE_READ, then the field has been enhanced to always call the StateManager on all reads.
static byte	MEDIATE_WRITE If the flags for a field includes MEDIATE_WRITE, then the field has been enhanced to always call the StateManager on all writes.
static byte	READ_OK If StateManager persistenceFlags is set to READ_OK, then the fields in the default fetch group can be accessed for read without notifying the StateManager.
static byte	READ_WRITE_OK If StateManager persistenceFlags is set to READ_WRITE_OK, then the fields in the default fetch group can be accessed for read or write without notifying the StateManager.
static byte	SERIALIZABLE If the flags for a field includes SERIALIZABLE, then the field is not declared as TRANSIENT.

Constructor Summary

Constructors

Constructor and Description
PersistenceFlags()

Method Summary

Methods

Modifier and Type	Method and Description
static String	persistenceFlagsToString(byte flags) Utility to convert JDO specific flags to a String.

Methods inherited from class java.lang.Object

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

Field Detail

READ_WRITE_OK

public static final byte READ_WRITE_OK

If StateManager persistenceFlags is set to READ_WRITE_OK, then the fields in the default fetch group can be accessed for read or write without notifying the StateManager.

See Also:

Constant Field Values

LOAD_REQUIRED

public static final byte LOAD_REQUIRED

If StateManager persistenceFlags is set to LOAD_REQUIRED, then the fields in the default fetch group cannot be accessed for read or write without notifying the StateManager.

See Also:

Constant Field Values

READ_OK

public static final byte READ_OK

If StateManager persistenceFlags is set to READ_OK, then the fields in the default fetch group can be accessed for read without notifying the StateManager.

See Also:

Constant Field Values

CHECK_READ

public static final byte CHECK_READ

If the flags for a field includes CHECK_READ, then the field has been enhanced to call the StateManager on read if the jdoFlags setting is not READ_OK or READ_WRITE_OK.

See Also:

Constant Field Values

MEDIATE_READ

public static final byte MEDIATE_READ

If the flags for a field includes MEDIATE_READ, then the field has been enhanced to always call the StateManager on all reads.

See Also:

Constant Field Values

CHECK_WRITE

public static final byte CHECK_WRITE

If the flags for a field includes CHECK_WRITE, then the field has been enhanced to call the StateManager on write if the jpoxFlags setting is not READ_WRITE_OK;.

See Also:

Constant Field Values

MEDIATE_WRITE

public static final byte MEDIATE_WRITE

If the flags for a field includes MEDIATE_WRITE, then the field has been enhanced to always call the StateManager on all writes.

See Also:

Constant Field Values

SERIALIZABLE

public static final byte SERIALIZABLE

If the flags for a field includes SERIALIZABLE, then the field is not declared as TRANSIENT.

See Also:

Constant Field Values

Constructor Detail

PersistenceFlags

public PersistenceFlags()

Method Detail

persistenceFlagsToString

public static String persistenceFlagsToString(byte flags)

Utility to convert JDO specific flags to a String.

Parameters:

flags - The JDO flags

Returns:

String version