com.sun.jdo.api.persistence.enhancer.meta

Class JDOMetaDataTimer

java.lang.Object

com.sun.jdo.api.persistence.enhancer.util.Assertion

com.sun.jdo.api.persistence.enhancer.util.Support

com.sun.jdo.api.persistence.enhancer.meta.JDOMetaDataTimer

All Implemented Interfaces:

JDOMetaData

public final class JDOMetaDataTimer
extends Support
implements JDOMetaData

Field Summary

Fields

Modifier and Type	Field and Description
protected JDOMetaData	delegate

Fields inherited from class com.sun.jdo.api.persistence.enhancer.util.Support

timer

Fields inherited from interface com.sun.jdo.api.persistence.enhancer.meta.JDOMetaData

javaLangCloneablePath, JDOExternalPath, JDOFlagsFieldName, JDOFlagsFieldSig, JDOFlagsFieldType, JDOInstanceCallbacksName, JDOInstanceCallbacksPath, JDOInstanceCallbacksSig, JDOInstanceCallbacksType, JDOPath, JDOPersistenceCapableName, JDOPersistenceCapablePath, JDOPersistenceCapableSig, JDOPersistenceCapableType, JDOPersistenceManagerName, JDOPersistenceManagerPath, JDOPersistenceManagerSig, JDOPersistenceManagerType, JDOSecondClassObjectBaseName, JDOSecondClassObjectBasePath, JDOSecondClassObjectBaseSig, JDOSecondClassObjectBaseType, JDOStateManagerFieldName, JDOStateManagerFieldSig, JDOStateManagerFieldType, JDOStateManagerName, JDOStateManagerPath, JDOStateManagerSig, JDOStateManagerType

Constructor Summary

Constructors

Constructor and Description
JDOMetaDataTimer(JDOMetaData delegate) Creates an instance.

Method Summary

Modifier and Type	Method and Description
int	getFieldNo(String classPath, String fieldName) Returns the unique field index of a declared, persistent field of a class.
String[]	getManagedFields(String classPath) Returns an array of field names of all declared persistent and transactional fields of a class.
String	getPersistenceCapableRootClass(String classPath) Returns the name of the persistence-capable root class of a class.
String	getSuperClass(String classPath) Returns the name of the superclass of a class.
boolean	isDefaultFetchGroupField(String classPath, String fieldName) Tests whether a field of a class is known to be part of the Default Fetch Group.
boolean	isMutableSecondClassObjectType(String classPath) Tests whether a class is known as type for Mutable Second Class Objects.
boolean	isPersistenceCapableClass(String classPath) Tests whether a class is known to be persistence-capable.
boolean	isPersistenceCapableRootClass(String classPath) Tests whether a class is known as a persistence-capable root class.
boolean	isPersistentField(String classPath, String fieldName) Tests whether a field of a class is known to be persistent.
boolean	isPrimaryKeyField(String classPath, String fieldName) Tests whether a field of a class is known to be Primary Key.
boolean	isSecondClassObjectType(String classPath) Tests whether a class is known as type for Second Class Objects.
boolean	isTransactionalField(String classPath, String fieldName) Tests whether a field of a class is known to be transactional.
boolean	isTransientClass(String classPath) Tests whether a class is known to be transient.

Methods inherited from class com.sun.jdo.api.persistence.enhancer.util.Support

getI18N, getI18N, getI18N, getI18N, getI18N, getI18N

Methods inherited from class com.sun.jdo.api.persistence.enhancer.util.Assertion

affirm, affirm, affirm, affirm

Methods inherited from class java.lang.Object

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

Field Detail

delegate

protected final JDOMetaData delegate

Constructor Detail

JDOMetaDataTimer

public JDOMetaDataTimer(JDOMetaData delegate)
                 throws JDOMetaDataUserException,
                        JDOMetaDataFatalError

Creates an instance.

Throws:

JDOMetaDataUserException

JDOMetaDataFatalError

Method Detail

isPersistenceCapableClass

public boolean isPersistenceCapableClass(String classPath)
                                  throws JDOMetaDataUserException,
                                         JDOMetaDataFatalError

Description copied from interface: JDOMetaData

Tests whether a class is known to be persistence-capable.

The following invariant holds: isPersistenceCapableClass(classPath) => !isTransientClass(classPath) && !isSecondClassObjectType(classPath)

Specified by:

isPersistenceCapableClass in interface JDOMetaData

Parameters:

classPath - the JVM-qualified name of the class

Returns:

true if this class is persistence-capable; otherwise false

Throws:

JDOMetaDataUserException

JDOMetaDataFatalError

isTransientClass

public boolean isTransientClass(String classPath)
                         throws JDOMetaDataUserException,
                                JDOMetaDataFatalError

Description copied from interface: JDOMetaData

Tests whether a class is known to be transient.

The following invariant holds: isTransientClass(classPath) => !isPersistenceCapableClass(classPath)

Specified by:

isTransientClass in interface JDOMetaData

Parameters:

classPath - the JVM-qualified name of the class

Returns:

true if this class is known to be transient; otherwise false

Throws:

JDOMetaDataUserException

JDOMetaDataFatalError

isPersistenceCapableRootClass

public boolean isPersistenceCapableRootClass(String classPath)
                                      throws JDOMetaDataUserException,
                                             JDOMetaDataFatalError

Description copied from interface: JDOMetaData

Tests whether a class is known as a persistence-capable root class.

Specified by:

isPersistenceCapableRootClass in interface JDOMetaData

Parameters:

classPath - the JVM-qualified name of the class

Returns:

true if this class is persistence-capable and does not derive from another persistence-capable class; otherwise false

Throws:

JDOMetaDataUserException

JDOMetaDataFatalError

getSuperClass

public String getSuperClass(String classPath)
                     throws JDOMetaDataUserException,
                            JDOMetaDataFatalError

Description copied from interface: JDOMetaData

Returns the name of the superclass of a class.

Specified by:

getSuperClass in interface JDOMetaData

Parameters:

classPath - the JVM-qualified name of the class

Returns:

the name of the superclass.

Throws:

JDOMetaDataUserException

JDOMetaDataFatalError

getPersistenceCapableRootClass

public String getPersistenceCapableRootClass(String classPath)
                                      throws JDOMetaDataUserException,
                                             JDOMetaDataFatalError

Description copied from interface: JDOMetaData

Returns the name of the persistence-capable root class of a class.

Specified by:

getPersistenceCapableRootClass in interface JDOMetaData

Parameters:

classPath - the JVM-qualified name of the class

Returns:

the name of the least-derived persistence-capable class that is equal to or a super class of the argument class; if the argument class is not persistence-capable, null is returned.

Throws:

JDOMetaDataUserException

JDOMetaDataFatalError

isSecondClassObjectType

public boolean isSecondClassObjectType(String classPath)
                                throws JDOMetaDataUserException,
                                       JDOMetaDataFatalError

Description copied from interface: JDOMetaData

Tests whether a class is known as type for Second Class Objects.

The following invariant holds: isSecondClassObjectType(classPath) => !isPersistenceCapableClass(classPath)

Specified by:

isSecondClassObjectType in interface JDOMetaData

Parameters:

classPath - the JVM-qualified name of the type

Returns:

true if this type is known for second class objects; otherwise false

Throws:

JDOMetaDataUserException

JDOMetaDataFatalError

isMutableSecondClassObjectType

public boolean isMutableSecondClassObjectType(String classPath)
                                       throws JDOMetaDataUserException,
                                              JDOMetaDataFatalError

Description copied from interface: JDOMetaData

Tests whether a class is known as type for Mutable Second Class Objects.

Specified by:

isMutableSecondClassObjectType in interface JDOMetaData

Parameters:

classPath - the JVM-qualified name of the type

Returns:

true if this type is known for mutable second class objects; otherwise false

Throws:

JDOMetaDataUserException

JDOMetaDataFatalError

isPersistentField

public boolean isPersistentField(String classPath,
                                 String fieldName)
                          throws JDOMetaDataUserException,
                                 JDOMetaDataFatalError

Description copied from interface: JDOMetaData

Tests whether a field of a class is known to be persistent.

Specified by:

isPersistentField in interface JDOMetaData

Parameters:

classPath - the JVM-qualified name of the class

fieldName - the name of the field

Returns:

true if this field is known to be persistent; otherwise false

Throws:

JDOMetaDataUserException

JDOMetaDataFatalError

isTransactionalField

public boolean isTransactionalField(String classPath,
                                    String fieldName)
                             throws JDOMetaDataUserException,
                                    JDOMetaDataFatalError

Description copied from interface: JDOMetaData

Tests whether a field of a class is known to be transactional.

Specified by:

isTransactionalField in interface JDOMetaData

Parameters:

classPath - the JVM-qualified name of the class

fieldName - the name of the field

Returns:

true if this field is known to be transactional; otherwise false

Throws:

JDOMetaDataUserException

JDOMetaDataFatalError

isPrimaryKeyField

public boolean isPrimaryKeyField(String classPath,
                                 String fieldName)
                          throws JDOMetaDataUserException,
                                 JDOMetaDataFatalError

Description copied from interface: JDOMetaData

Tests whether a field of a class is known to be Primary Key.

Specified by:

isPrimaryKeyField in interface JDOMetaData

Parameters:

classPath - the JVM-qualified name of the class

fieldName - the name of the field

Returns:

true if this field is known to be primary key; otherwise false

Throws:

JDOMetaDataUserException

JDOMetaDataFatalError

isDefaultFetchGroupField

public boolean isDefaultFetchGroupField(String classPath,
                                        String fieldName)
                                 throws JDOMetaDataUserException,
                                        JDOMetaDataFatalError

Description copied from interface: JDOMetaData

Tests whether a field of a class is known to be part of the Default Fetch Group.

Specified by:

isDefaultFetchGroupField in interface JDOMetaData

Parameters:

classPath - the JVM-qualified name of the class

fieldName - the name of the field

Returns:

true if this field is known to be part of the default fetch group; otherwise false

Throws:

JDOMetaDataUserException

JDOMetaDataFatalError

getFieldNo

public int getFieldNo(String classPath,
                      String fieldName)
               throws JDOMetaDataUserException,
                      JDOMetaDataFatalError

Description copied from interface: JDOMetaData

Returns the unique field index of a declared, persistent field of a class.

Specified by:

getFieldNo in interface JDOMetaData

Parameters:

classPath - the JVM-qualified name of the class

fieldName - the name of the field

Returns:

the non-negative, unique field index

Throws:

JDOMetaDataUserException

JDOMetaDataFatalError

getManagedFields

public String[] getManagedFields(String classPath)
                          throws JDOMetaDataUserException,
                                 JDOMetaDataFatalError

Description copied from interface: JDOMetaData

Returns an array of field names of all declared persistent and transactional fields of a class.

The position of the field names in the result array corresponds to their unique field index as returned by getFieldNo such that these equations holds:

getFieldNo(getManagedFields(classPath)[i]) == i

getManagedFields(classPath)[getFieldNo(fieldName)] == fieldName

Specified by:

getManagedFields in interface JDOMetaData

Parameters:

classPath - the JVM-qualified name of the class

Returns:

an array of all declared persistent and transactional fields of a class

Throws:

JDOMetaDataUserException

JDOMetaDataFatalError