org.apache.jdo.impl.enhancer.meta.prop

Class EnhancerMetaDataPropertyImpl

java.lang.Object

org.apache.jdo.impl.enhancer.util.Assertion

org.apache.jdo.impl.enhancer.util.Support

org.apache.jdo.impl.enhancer.meta.util.EnhancerMetaDataBaseModel

org.apache.jdo.impl.enhancer.meta.prop.EnhancerMetaDataPropertyImpl

All Implemented Interfaces:

EnhancerMetaData, ExtendedMetaData

public class EnhancerMetaDataPropertyImpl
extends EnhancerMetaDataBaseModel
implements ExtendedMetaData

Provides the JDO meta information based on properties.

Field Summary

Fields inherited from class org.apache.jdo.impl.enhancer.meta.util.EnhancerMetaDataBaseModel

out, unenhancableTypePrefixes, verbose

Fields inherited from class org.apache.jdo.impl.enhancer.util.Support

timer

Fields inherited from interface org.apache.jdo.impl.enhancer.meta.EnhancerMetaData

CHECK_READ, CHECK_WRITE, MEDIATE_READ, MEDIATE_WRITE, SERIALIZABLE

Constructor Summary

Constructors

Constructor and Description
EnhancerMetaDataPropertyImpl(java.io.PrintWriter out, boolean verbose, java.util.Properties properties) Creates an instance.
EnhancerMetaDataPropertyImpl(java.io.PrintWriter out, boolean verbose, java.lang.String fileName) Creates an instance.

Method Summary

Methods

Modifier and Type	Method and Description
void	declareField(java.lang.String classPath, java.lang.String fieldName, java.lang.String signature) Declares a field to the JDO model passing its type information.
int	getClassModifiers(java.lang.String classname) Gets the access modifier of a class.
java.lang.String	getDeclaringClass(java.lang.String classPath, java.lang.String fieldName) Returns the JVM-qualified name of the specified field's declaring class.
int	getFieldModifiers(java.lang.String classname, java.lang.String fieldname) Gets the access modifier of a field.
int[]	getFieldModifiers(java.lang.String classname, java.lang.String[] fieldnames) Gets the modifiers of some fields.
int	getFieldNumber(java.lang.String classPath, java.lang.String fieldName) Returns the unique field index of a declared, persistent field of a class.
java.lang.String	getFieldType(java.lang.String classname, java.lang.String fieldname) Gets the type of a field.
java.lang.String[]	getFieldType(java.lang.String classname, java.lang.String[] fieldnames) Gets the type of some fields.
java.lang.String	getKeyClass(java.lang.String classPath) Returns the name of the key class of a persistence-capable class.
java.lang.String[]	getKnownClasses() Not member of EnhancerMetaData Interface.
java.lang.String[]	getKnownFields(java.lang.String classname) Gets all known fields of a class.
java.lang.String[]	getManagedFields(java.lang.String classname) Returns an array of field names of all declared, persistent fields of a class.
java.lang.String	getPersistenceCapableSuperClass(java.lang.String classPath) Returns the name of the persistence-capable superclass of a class.
java.lang.String	getSuperClass(java.lang.String classname) Returns the superclass of a class.
boolean	isDefaultFetchGroupField(java.lang.String classPath, java.lang.String fieldName) Returns whether a field of a class is known to be part of the Default Fetch Group.
boolean	isKeyField(java.lang.String classPath, java.lang.String fieldName) Returns whether a field of a class is known to be Primary Key.
boolean	isKnownNonManagedField(java.lang.String classPath, java.lang.String fieldName, java.lang.String fieldSig) Returns whether a field of a class is known to be non-managed.
boolean	isManagedField(java.lang.String classPath, java.lang.String fieldName) Returns whether a field of a class is transient transactional or persistent.
boolean	isPersistenceCapableClass(java.lang.String classPath) Returns whether a class is known to be persistence-capable.
boolean	isPersistentField(java.lang.String classPath, java.lang.String fieldName) Returns whether a field of a class is known to be persistent.
boolean	isSerializableClass(java.lang.String classPath) Returns whether a class implements java.io.Serializable.
boolean	isTransactionalField(java.lang.String classPath, java.lang.String fieldName) Returns whether a field of a class is known to be transactional.
static void	main(java.lang.String[] argv)

Methods inherited from class org.apache.jdo.impl.enhancer.meta.util.EnhancerMetaDataBaseModel

getFieldFlags, getFieldFlags, getFieldNumber, getKeyFields, getPersistenceCapableRootClass, getSuperKeyClass, isKnownUnenhancableClass, isPersistenceCapableRootClass, printMessage, printWarning

Methods inherited from class org.apache.jdo.impl.enhancer.util.Support

getI18N, getI18N, getI18N, getI18N, getI18N, getI18N

Methods inherited from class org.apache.jdo.impl.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

Methods inherited from interface org.apache.jdo.impl.enhancer.meta.EnhancerMetaData

getFieldFlags, getFieldFlags, getFieldNumber, getKeyFields, getPersistenceCapableRootClass, getSuperKeyClass, isKnownUnenhancableClass, isPersistenceCapableRootClass

Constructor Detail

EnhancerMetaDataPropertyImpl

public EnhancerMetaDataPropertyImpl(java.io.PrintWriter out,
                            boolean verbose,
                            java.util.Properties properties)
                             throws EnhancerMetaDataUserException,
                                    EnhancerMetaDataFatalError

Creates an instance.

Throws:

EnhancerMetaDataUserException

EnhancerMetaDataFatalError

EnhancerMetaDataPropertyImpl

public EnhancerMetaDataPropertyImpl(java.io.PrintWriter out,
                            boolean verbose,
                            java.lang.String fileName)
                             throws EnhancerMetaDataUserException,
                                    EnhancerMetaDataFatalError

Creates an instance.

Throws:

EnhancerMetaDataUserException

EnhancerMetaDataFatalError

Method Detail

getDeclaringClass

public java.lang.String getDeclaringClass(java.lang.String classPath,
                                 java.lang.String fieldName)
                                   throws EnhancerMetaDataUserException,
                                          EnhancerMetaDataFatalError

Returns the JVM-qualified name of the specified field's declaring class. The method first checks whether the class of the specified classPath (the JVM-qualified name) declares such a field. If yes, classPath is returned. Otherwise, it checks its superclasses. The method returns null for an unkown field.

Specified by:

getDeclaringClass in interface EnhancerMetaData

Parameters:

classPath - the non-null JVM-qualified name of the class

fieldName - the non-null name of the field

Returns:

the JVM-qualified name of the declararing class of the field, or null if there is no such field.

Throws:

EnhancerMetaDataUserException

EnhancerMetaDataFatalError

declareField

public void declareField(java.lang.String classPath,
                java.lang.String fieldName,
                java.lang.String signature)
                  throws EnhancerMetaDataUserException,
                         EnhancerMetaDataFatalError

Declares a field to the JDO model passing its type information.

Specified by:

declareField in interface EnhancerMetaData

Parameters:

classPath - the non-null JVM-qualified name of the class

fieldName - the non-null name of the field

signature - the non-null JVM signature of the field

Throws:

EnhancerMetaDataUserException

EnhancerMetaDataFatalError

See Also:

EnhancerMetaData.isPersistenceCapableClass(String)

isPersistenceCapableClass

public boolean isPersistenceCapableClass(java.lang.String classPath)
                                  throws EnhancerMetaDataUserException,
                                         EnhancerMetaDataFatalError

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

Specified by:

isPersistenceCapableClass in interface EnhancerMetaData

Parameters:

classPath - the non-null JVM-qualified name of the class

Returns:

true if this class is persistence-capable; otherwise false

Throws:

EnhancerMetaDataUserException

EnhancerMetaDataFatalError

See Also:

EnhancerMetaData.isKnownUnenhancableClass(String)

isSerializableClass

public boolean isSerializableClass(java.lang.String classPath)
                            throws EnhancerMetaDataUserException,
                                   EnhancerMetaDataFatalError

Returns whether a class implements java.io.Serializable.

Specified by:

isSerializableClass in interface EnhancerMetaData

Parameters:

classPath - the non-null JVM-qualified name of the class

Returns:

true if this class is serializable; otherwise false

Throws:

EnhancerMetaDataUserException

EnhancerMetaDataFatalError

getPersistenceCapableSuperClass

public java.lang.String getPersistenceCapableSuperClass(java.lang.String classPath)
                                                 throws EnhancerMetaDataUserException,
                                                        EnhancerMetaDataFatalError

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

Specified by:

getPersistenceCapableSuperClass in interface EnhancerMetaData

Parameters:

classPath - the non-null JVM-qualified name of the class

Returns:

the name of the PC superclass or null if there is none

Throws:

EnhancerMetaDataUserException

EnhancerMetaDataFatalError

See Also:

EnhancerMetaData.isPersistenceCapableClass(String), EnhancerMetaData.getPersistenceCapableRootClass(String)

getSuperClass

public final java.lang.String getSuperClass(java.lang.String classname)

Returns the superclass of a class.

Specified by:

getSuperClass in interface ExtendedMetaData

Parameters:

classname - the JVM-qualified name of the class

Returns:

the name of the superclass or null if there is none

getKeyClass

public java.lang.String getKeyClass(java.lang.String classPath)
                             throws EnhancerMetaDataUserException,
                                    EnhancerMetaDataFatalError

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

Specified by:

getKeyClass in interface EnhancerMetaData

Parameters:

classPath - the non-null JVM-qualified name of the class

Returns:

the name of the key class or null if there is none

Throws:

EnhancerMetaDataUserException

EnhancerMetaDataFatalError

See Also:

EnhancerMetaData.isPersistenceCapableClass(String)

isKnownNonManagedField

public boolean isKnownNonManagedField(java.lang.String classPath,
                             java.lang.String fieldName,
                             java.lang.String fieldSig)

Returns whether a field of a class is known to be non-managed.

Specified by:

isKnownNonManagedField in interface EnhancerMetaData

Parameters:

classPath - the non-null JVM-qualified name of the class

fieldName - the non-null name of the field

fieldSig - the non-null type signature of the field

Returns:

true if this field is known to be non-managed; otherwise false

See Also:

EnhancerMetaData.isManagedField(String, String), EnhancerMetaData.declareField(String, String, String)

isManagedField

public boolean isManagedField(java.lang.String classPath,
                     java.lang.String fieldName)

Returns whether a field of a class is transient transactional or persistent.

Specified by:

isManagedField in interface EnhancerMetaData

Overrides:

isManagedField in class EnhancerMetaDataBaseModel

Parameters:

classPath - the non-null JVM-qualified name of the class

fieldName - the non-null name of the field

Returns:

true if this field is managed; otherwise false

See Also:

EnhancerMetaData.isManagedField(String, String)

isPersistentField

public boolean isPersistentField(java.lang.String classPath,
                        java.lang.String fieldName)
                          throws EnhancerMetaDataUserException,
                                 EnhancerMetaDataFatalError

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

Specified by:

isPersistentField in interface EnhancerMetaData

Parameters:

classPath - the non-null JVM-qualified name of the class

fieldName - the non-null name of the field

Returns:

true if this field is persistent; otherwise false

Throws:

EnhancerMetaDataUserException

EnhancerMetaDataFatalError

See Also:

EnhancerMetaData.isManagedField(String, String), EnhancerMetaData.declareField(String, String, String)

isTransactionalField

public boolean isTransactionalField(java.lang.String classPath,
                           java.lang.String fieldName)
                             throws EnhancerMetaDataUserException,
                                    EnhancerMetaDataFatalError

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

Specified by:

isTransactionalField in interface EnhancerMetaData

Parameters:

classPath - the non-null JVM-qualified name of the class

fieldName - the non-null name of the field

Returns:

true if this field is transactional; otherwise false

Throws:

EnhancerMetaDataUserException

EnhancerMetaDataFatalError

See Also:

EnhancerMetaData.isManagedField(String, String), EnhancerMetaData.declareField(String, String, String)

isKeyField

public boolean isKeyField(java.lang.String classPath,
                 java.lang.String fieldName)
                   throws EnhancerMetaDataUserException,
                          EnhancerMetaDataFatalError

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

Specified by:

isKeyField in interface EnhancerMetaData

Parameters:

classPath - the non-null JVM-qualified name of the class

fieldName - the non-null name of the field

Returns:

true if this field is key; otherwise false

Throws:

EnhancerMetaDataUserException

EnhancerMetaDataFatalError

See Also:

EnhancerMetaData.isPersistentField(String, String), EnhancerMetaData.declareField(String, String, String)

isDefaultFetchGroupField

public boolean isDefaultFetchGroupField(java.lang.String classPath,
                               java.lang.String fieldName)
                                 throws EnhancerMetaDataUserException,
                                        EnhancerMetaDataFatalError

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

Specified by:

isDefaultFetchGroupField in interface EnhancerMetaData

Parameters:

classPath - the non-null JVM-qualified name of the class

fieldName - the non-null name of the field

Returns:

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

Throws:

EnhancerMetaDataUserException

EnhancerMetaDataFatalError

See Also:

EnhancerMetaData.isPersistentField(String, String), EnhancerMetaData.declareField(String, String, String)

getFieldNumber

public int getFieldNumber(java.lang.String classPath,
                 java.lang.String fieldName)
                   throws EnhancerMetaDataUserException,
                          EnhancerMetaDataFatalError

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

Specified by:

getFieldNumber in interface EnhancerMetaData

Parameters:

classPath - the non-null JVM-qualified name of the class

fieldName - the non-null name of the field

Returns:

the non-negative, unique field index or -1 if the field is non-managed

Throws:

EnhancerMetaDataUserException

EnhancerMetaDataFatalError

See Also:

EnhancerMetaData.getManagedFields(String), EnhancerMetaData.declareField(String, String, String)

getManagedFields

public java.lang.String[] getManagedFields(java.lang.String classname)

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

Specified by:

getManagedFields in interface EnhancerMetaData

Parameters:

classname - the non-null JVM-qualified name of the class

Returns:

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

See Also:

EnhancerMetaData.getFieldNumber(String, String), EnhancerMetaData.declareField(String, String, String)

getKnownClasses

public final java.lang.String[] getKnownClasses()

Not member of EnhancerMetaData Interface.

Specified by:

getKnownClasses in interface ExtendedMetaData

Returns:

All known classnames.

getKnownFields

public final java.lang.String[] getKnownFields(java.lang.String classname)

Gets all known fields of a class.

Specified by:

getKnownFields in interface ExtendedMetaData

Parameters:

classname - The classname.

Returns:

All known fieldnames.

getClassModifiers

public final int getClassModifiers(java.lang.String classname)

Gets the access modifier of a class.

Specified by:

getClassModifiers in interface ExtendedMetaData

Parameters:

classname - The classname.

Returns:

The modifiers.

See Also:

Modifier

getFieldModifiers

public final int getFieldModifiers(java.lang.String classname,
                    java.lang.String fieldname)

Gets the access modifier of a field.

Specified by:

getFieldModifiers in interface ExtendedMetaData

Parameters:

classname - The classname.

fieldname - The fieldname.

Returns:

The modifiers.

See Also:

Modifier

getFieldType

public final java.lang.String getFieldType(java.lang.String classname,
                            java.lang.String fieldname)

Description copied from interface: ExtendedMetaData

Gets the type of a field.

Specified by:

getFieldType in interface ExtendedMetaData

Parameters:

classname - The classname.

fieldname - The fieldname.

Returns:

The type of the field.

getFieldType

public final java.lang.String[] getFieldType(java.lang.String classname,
                              java.lang.String[] fieldnames)

Description copied from interface: ExtendedMetaData

Gets the type of some fields.

Specified by:

getFieldType in interface ExtendedMetaData

Parameters:

classname - The classname.

fieldnames - The fieldnames.

Returns:

The type of the fields.

getFieldModifiers

public final int[] getFieldModifiers(java.lang.String classname,
                      java.lang.String[] fieldnames)
                              throws EnhancerMetaDataUserException,
                                     EnhancerMetaDataFatalError

Description copied from interface: ExtendedMetaData

Gets the modifiers of some fields.

Specified by:

getFieldModifiers in interface ExtendedMetaData

Parameters:

classname - The classname.

fieldnames - The fieldnames.

Returns:

The modifiers.

Throws:

EnhancerMetaDataUserException

EnhancerMetaDataFatalError

See Also:

Modifier

main

public static void main(java.lang.String[] argv)