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

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

All Implemented Interfaces:

EnhancerMetaData

Direct Known Subclasses:

EnhancerMetaDataJDOModelImpl, EnhancerMetaDataPropertyImpl

public abstract class EnhancerMetaDataBaseModel
extends Support
implements EnhancerMetaData

Provides the JDO meta information based on a JDO meta model.

Field Summary

protected java.io.PrintWriter	out
protected static java.util.HashSet	unenhancableTypePrefixes
protected boolean	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

EnhancerMetaDataBaseModel(java.io.PrintWriter out, boolean verbose)
Creates an instance.

Method Summary

int	getFieldFlags(java.lang.String classPath, java.lang.String fieldName) Returns the field flags of a declared, managed field of a class.
int[]	getFieldFlags(java.lang.String classPath, java.lang.String[] fieldNames) Returns the field flags for some declared, managed fields of a class.
int[]	getFieldNumber(java.lang.String classPath, java.lang.String[] fieldNames) Returns the unique field index of some declared, managed fields of a class.
java.lang.String[]	getKeyFields(java.lang.String classPath) Returns an array of field names of all key fields of a class.
java.lang.String	getPersistenceCapableRootClass(java.lang.String classPath) Returns the name of the persistence-capable root class of a class.
java.lang.String	getSuperKeyClass(java.lang.String classPath) Returns the name of the key class of the next persistence-capable superclass that defines one.
boolean	isKnownUnenhancableClass(java.lang.String classPath) Returns whether a class is not to be modified by the enhancer.
boolean	isManagedField(java.lang.String classPath, java.lang.String fieldName) Returns whether a field of a class is known to be either transient transactional or persistent.
boolean	isPersistenceCapableRootClass(java.lang.String classPath) Returns whether a class is persistence-capable root class.
void	printMessage(java.lang.String msg) Prints out a verbose message.
void	printWarning(java.lang.String msg) Prints out a warning message.

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

declareField, getDeclaringClass, getFieldNumber, getKeyClass, getManagedFields, getPersistenceCapableSuperClass, isDefaultFetchGroupField, isKeyField, isKnownNonManagedField, isPersistenceCapableClass, isPersistentField, isSerializableClass, isTransactionalField

Field Detail

verbose

protected boolean verbose

out

protected final java.io.PrintWriter out

unenhancableTypePrefixes

protected static final java.util.HashSet unenhancableTypePrefixes

Constructor Detail

EnhancerMetaDataBaseModel

public EnhancerMetaDataBaseModel(java.io.PrintWriter out,
                                 boolean verbose)
                          throws EnhancerMetaDataUserException,
                                 EnhancerMetaDataFatalError

Creates an instance.

Throws:

EnhancerMetaDataUserException

EnhancerMetaDataFatalError

Method Detail

printWarning

public void printWarning(java.lang.String msg)

Prints out a warning message.

Parameters:

msg - the message

printMessage

public void printMessage(java.lang.String msg)

Prints out a verbose message.

Parameters:

msg - the message

isKnownUnenhancableClass

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

Returns whether a class is not to be modified by the enhancer.

Specified by:

isKnownUnenhancableClass in interface EnhancerMetaData

Parameters:

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

Returns:

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

Throws:

EnhancerMetaDataUserException

EnhancerMetaDataFatalError

See Also:

EnhancerMetaData.isKnownUnenhancableClass(String)

isPersistenceCapableRootClass

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

Returns whether a class is persistence-capable root class.

Specified by:

isPersistenceCapableRootClass in interface EnhancerMetaData

Parameters:

classPath - the non-null 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:

EnhancerMetaDataUserException

EnhancerMetaDataFatalError

See Also:

EnhancerMetaData.isPersistenceCapableRootClass(String)

getPersistenceCapableRootClass

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

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

Specified by:

getPersistenceCapableRootClass in interface EnhancerMetaData

Parameters:

classPath - the non-null 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:

EnhancerMetaDataUserException

EnhancerMetaDataFatalError

See Also:

EnhancerMetaData.getPersistenceCapableRootClass(String)

getSuperKeyClass

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

Returns the name of the key class of the next persistence-capable superclass that defines one.

Specified by:

getSuperKeyClass 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.getSuperKeyClass(String)

isManagedField

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

Returns whether a field of a class is known to be either transient transactional or persistent.

Specified by:

isManagedField 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 managed; otherwise false

Throws:

EnhancerMetaDataUserException

EnhancerMetaDataFatalError

See Also:

EnhancerMetaData.isManagedField(String, String)

getFieldFlags

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

Returns the field flags of a declared, managed field of a class.

Specified by:

getFieldFlags in interface EnhancerMetaData

Parameters:

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

fieldName - the non-null name of the field

Returns:

the field flags for this field

Throws:

EnhancerMetaDataUserException

EnhancerMetaDataFatalError

See Also:

EnhancerMetaData.getFieldFlags(String, String)

getKeyFields

public java.lang.String[] getKeyFields(java.lang.String classPath)
                                throws EnhancerMetaDataUserException,
                                       EnhancerMetaDataFatalError

Returns an array of field names of all key fields of a class.

Specified by:

getKeyFields in interface EnhancerMetaData

Parameters:

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

Returns:

an array of all declared key fields of a class

Throws:

EnhancerMetaDataUserException

EnhancerMetaDataFatalError

See Also:

EnhancerMetaData.getKeyFields(String)

getFieldFlags

public int[] getFieldFlags(java.lang.String classPath,
                           java.lang.String[] fieldNames)
                    throws EnhancerMetaDataUserException,
                           EnhancerMetaDataFatalError

Returns the field flags for some declared, managed fields of a class.

Specified by:

getFieldFlags in interface EnhancerMetaData

Parameters:

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

fieldNames - the non-null array of names of the declared fields

Returns:

the field flags for the fields

Throws:

EnhancerMetaDataUserException

EnhancerMetaDataFatalError

See Also:

EnhancerMetaData.getFieldFlags(String, String[])

getFieldNumber

public int[] getFieldNumber(java.lang.String classPath,
                            java.lang.String[] fieldNames)
                     throws EnhancerMetaDataUserException,
                            EnhancerMetaDataFatalError

Returns the unique field index of some declared, managed fields of a class.

Specified by:

getFieldNumber in interface EnhancerMetaData

Parameters:

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

fieldNames - the non-null array of names of the declared fields

Returns:

the non-negative, unique field indices

Throws:

EnhancerMetaDataUserException

EnhancerMetaDataFatalError

See Also:

EnhancerMetaData.getFieldNumber(String, String[])