wt.introspection
Class ClassInfo

java.lang.Object
  wt.introspection.ClassInfo

All Implemented Interfaces:

Externalizable, Serializable

Direct Known Subclasses:

LinkInfo

public class ClassInfo

extends Object

implements Externalizable

ClassInfo is the class for providing class meta-data There will be an instance of this class for each modeled business class that is installed.

Supported API: true

Extendable: false

See Also:

WTIntrospector, LinkInfo, Serialized Form

Field Summary

private String	absoluteDir
private ClassInfo[]	allDescendentInfos
private com.objectspace.jgl.OrderedMap	attributeTable
private String	classname
private static String	CLASSNAME
private String	concreteClassname
private DatastoreElementType	datastoreElementType
private DatabaseInfo	dbInfo
static boolean	DEBUG
private ClassInfo[]	directDescendentInfos
(package private) static String[]	DISPLAY_NAME
private static Class	EVOLVABLE
private HashMap	extendedValues
static long	externalizationVersionUID Version identifier for managing compatibility and evolution of externalizable classes.
private String[]	interfaces
private boolean	localizable
private static DebugWriter	LOG
private AttributeDescriptor[]	myAttributes
private Class	myBusinessClass
private Class	myConcreteClass
private ClassInfo	myParentClass
private ClassInfo[]	myParentInterfaces
private static int	OPEN_ICON
private String	openIcon
private RoleDescriptor[]	otherSideRoles
private String	parentClassname
private static boolean	PD_RECURSE_INTERFACE
private boolean	persistable
private PropertyDescriptor[]	properties
private HashMap	propertyCache
private HashMap	readPropertyCache
private boolean	removeEventParticipant
private static String	RESOURCE
private static boolean	RUNTIME_MODE
(package private) static long	serialVersionUID
(package private) static String[]	SHORT_DESCRIPTION
private static String	SIMPLE_CLASSNAME
private static int	STANDARD_ICON
private String	standardIcon

Constructor Summary

ClassInfo()
Constructor.

ClassInfo(String[] theInterfaces, String parent_name, String class_name, String concrete_classname, DatabaseInfo database_info, boolean persistentFlag, AttributeDescriptor[] attrs, String standard_icon, String open_icon, boolean isLocalizable, DatastoreElementType datastore_elem_type, boolean isRemoveEventParticipant, HashMap extended_values)
Constructor.

Method Summary

private void	accumulateDefaultExtensions(PropertyDescriptor pd)
private void	accumulateDescendentInfosDirect(ArrayList accumulator, String class_name, boolean recurse) Accumulate all direct descendent classes.
private void	accumulateDescendents(String class_name) Accumulate all descendent ClassInfos.
private void	accumulateOtherRoles()
private void	accumulateProperties()
private void	accumulatePropertyExtensions(PropertyDescriptor[] property_descriptors)
private void	addInfoRoles(ArrayList roles, ClassInfo anotherInfo)
private PropertyDescriptor[]	addPropertyDescriptors(PropertyDescriptor[] accumulator, HashMap others)
private void	addRole(ArrayList roles, RoleDescriptor newRole)
private void	addRole(ArrayList roles, RoleDescriptor newRole, int add_index)
boolean	equals(Object obj) Compares two objects for equality.
ColumnDescriptor[]	getAttributeColumnDescriptors(String name) Return all the ColumnDescriptor's (if any) associated with the named attribute.
Object[]	getAttributeValueSet(String name) Gets the set of valid values for the named attribute.
Class	getBusinessClass() Gets the business class represented by this info instance.
String	getClassname() Gets the class name of the business class represented by this info instance.
Class	getConcreteClass() Gets the instantiable class represented by this info instance.
static EnumeratedType	getConstrainedEnum(Class theClass, String attribute_name, String internal_value) Gets the EnumeratedType instance for an attribute of a class, given an internal value for the EnumeratedType instance.
DatabaseInfo	getDatabaseInfo() Gets the DatabaseInfo for this class.
DatastoreElementType	getDatastoreElementType() Gets the DatastoreElementType of the class.
ClassInfo[]	getDescendentInfos() Gets an array of ClassInfos of all the descendent classes.
ClassInfo[]	getDirectDescendentInfos() Gets the direct descendent class infos.
String	getDisplayName() Gets the display name for the class.
String	getDisplayName(Locale locale) Gets the display name for the class, for the specified locale.
long	getExternalizationVersionUID() Gets the generated externalization UID, if it exists.
private static int	getIndex(String name, PropertyDescriptor[] properties)
(package private) String[]	getInterfaces()
String	getOpenIcon() Gets the fully qualified class name of the resource bundle for the open icon.
RoleDescriptor	getOtherSideRole(String name) Gets a named RoleDescriptor, which is opposite of this class.
RoleDescriptor	getOtherSideRole(String name, LinkInfo info) Gets a named RoleDescriptor, for a particular association, which is opposite of this class.
RoleDescriptor[]	getOtherSideRoles() Gets an array of RoleDescriptors, which are opposite instances of this class, in all of the associations, within which this class can participate.
ClassInfo	getParentClassInfo() Gets the parent class info of the business class represented by this info instance.
String	getParentClassname() Gets the name of the parent class of the business class represented by this info instance.
ClassInfo[]	getParentInterfaceInfos() Gets the parent interface infos for the business class represented by this info instance.
PropertyDescriptor	getPropertyDescriptor(String name) Gets a property descriptor for the named attribute of the class.
private static PropertyDescriptor	getPropertyDescriptor(String name, PropertyDescriptor[] properties)
PropertyDescriptor[]	getPropertyDescriptors() Gets the array of property descriptors for the class.
static String	getPropertyDisplayName(PropertyDescriptor property, Locale locale) Gets the display name for the named property of the class, for the specified locale.
static String	getPropertyShortDescription(PropertyDescriptor property, Locale locale) Gets the display name for the property of the class, for the specified locale.
PropertyDescriptor	getReadPropertyDescriptor(String name) Gets a read-only property descriptor for the named attribute of the class.
private static Class	getRootContainer(String name, Class container)
Class	getSerializableType() Gets the type of serialization used by the class, if it is enabled.
long	getSerialVersionUID() Gets the serialVersionUID for the class.
String	getStandardIcon() Gets the fully qualified class name of the resource bundle for the standard icon.
Object	getValue(String attribute_name) Retrieve a named attribute with this feature.
boolean	hasDisplayName() Deprecated.
protected boolean	haveParentClass() Supported API: false
boolean	isConcrete() Gets the concrete status of this class.
boolean	isLocalizable() Deprecated.
boolean	isPersistable() Gets the persistable status of this class.
boolean	isRemoveEventParticipant() Indicates if the persistence layer is required to dispatch Remove events for this class.
private boolean	isSuperclassOf(Class aClass) Deprecated. Replaced by java.lang.Class.isAssignableFrom(Class)
boolean	isSuperclassOf(ClassInfo classInfo) Answer whether class parents the supplied classInfo.
(package private) static Class	loadClass(String a_classname)
private void	mergePropertyDescriptors(HashMap PDs, ClassInfo anotherInfo)
void	readExternal(ObjectInput input) Reads the non-transient fields of this class from an external source.
private void	readMyRoles(ArrayList roles)
private boolean	removeDuplicateRole(ArrayList roles, int index, RoleDescriptor newRole)
private String	resourceLookup(String[] key, Locale locale) example: key = "DisplayName" classname = "wt.fc.PersistInfo" Supported API: false
(package private) static String	resourceLookup(String[] key, String attribute, Locale locale) example: key = "DisplayName" attribute = "wt.fc.PersistInfo.createStamp"
private static String	resourceLookup(String resourceName, String[] key, String elementName, Locale locale) example: resourceName = "fcResource" key = "DisplayName" attribute = "PersistInfo.createStamp" locale = WTContext.getContext().getLocale() Supported API: false
(package private) void	setAbsoluteDir(String absolute_dir)
private void	setIconDefault(int icon)
private String	setIconName(ClassInfo info, int icon)
private static void	setPropertyLocalizables(PropertyDescriptor property)
LocalizableMessage	toDisplayNameMessage() Gets an object, which can be used to get a localized message for this class, having the request deferred to time or location where the locale may not be the same as the current locale.
String	toString() Returns a string representation of the object.
void	writeExternal(ObjectOutput output) Writes the non-transient fields of this class to an external source.

Methods inherited from class java.lang.Object

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

Field Detail

CLASSNAME

private static final String CLASSNAME

SIMPLE_CLASSNAME

private static final String SIMPLE_CLASSNAME

DEBUG

public static final boolean DEBUG

LOG

private static final DebugWriter LOG

externalizationVersionUID

public static final long externalizationVersionUID

Version identifier for managing compatibility and evolution of externalizable classes.

Supported API: false

See Also:

Constant Field Values

serialVersionUID

static final long serialVersionUID

See Also:

Constant Field Values

RESOURCE

private static final String RESOURCE

See Also:

Constant Field Values

absoluteDir

private String absoluteDir

DISPLAY_NAME

static final String[] DISPLAY_NAME

SHORT_DESCRIPTION

static final String[] SHORT_DESCRIPTION

STANDARD_ICON

private static final int STANDARD_ICON

See Also:

Constant Field Values

OPEN_ICON

private static final int OPEN_ICON

See Also:

Constant Field Values

myParentInterfaces

private transient volatile ClassInfo[] myParentInterfaces

myParentClass

private transient ClassInfo myParentClass

myBusinessClass

private transient Class myBusinessClass

myConcreteClass

private transient Class myConcreteClass

concreteClassname

private String concreteClassname

interfaces

private String[] interfaces

parentClassname

private String parentClassname

classname

private String classname

dbInfo

private DatabaseInfo dbInfo

persistable

private boolean persistable

removeEventParticipant

private boolean removeEventParticipant

openIcon

private String openIcon

standardIcon

private String standardIcon

localizable

private boolean localizable

datastoreElementType

private DatastoreElementType datastoreElementType

extendedValues

private HashMap extendedValues

properties

private transient volatile PropertyDescriptor[] properties

propertyCache

private transient HashMap propertyCache

readPropertyCache

private transient HashMap readPropertyCache

attributeTable

private transient com.objectspace.jgl.OrderedMap attributeTable

myAttributes

private AttributeDescriptor[] myAttributes

otherSideRoles

private transient volatile RoleDescriptor[] otherSideRoles

allDescendentInfos

private transient volatile ClassInfo[] allDescendentInfos

directDescendentInfos

private transient volatile ClassInfo[] directDescendentInfos

RUNTIME_MODE

private static final boolean RUNTIME_MODE

PD_RECURSE_INTERFACE

private static final boolean PD_RECURSE_INTERFACE

EVOLVABLE

private static final Class EVOLVABLE

Constructor Detail

ClassInfo

public ClassInfo()

Constructor.

Supported API: false

ClassInfo

public ClassInfo(String[] theInterfaces,
                 String parent_name,
                 String class_name,
                 String concrete_classname,
                 DatabaseInfo database_info,
                 boolean persistentFlag,
                 AttributeDescriptor[] attrs,
                 String standard_icon,
                 String open_icon,
                 boolean isLocalizable,
                 DatastoreElementType datastore_elem_type,
                 boolean isRemoveEventParticipant,
                 HashMap extended_values)

Constructor.

Supported API: false

Method Detail

accumulateDefaultExtensions

private void accumulateDefaultExtensions(PropertyDescriptor pd)
                                  throws WTIntrospectionException

Throws:

WTIntrospectionException

accumulateDescendentInfosDirect

private void accumulateDescendentInfosDirect(ArrayList accumulator,
                                             String class_name,
                                             boolean recurse)
                                      throws WTIntrospectionException

Accumulate all direct descendent classes.

Supported API: false

Parameters:

class_name - - The fully qualified name of the class for which decendents will be gathered.

Returns:

The ArrayList of direct descendents for the class specified in the parameter.

Throws:

WTIntrospectionException

See Also:

wt.introspection.ClassInfo#accumulateAll(String)

accumulateDescendents

private void accumulateDescendents(String class_name)
                            throws WTIntrospectionException

Accumulate all descendent ClassInfos.

Supported API: false

Parameters:

class_name - - The fully qualified name of the class for which decendents will be gathered.

Throws:

WTIntrospectionException - if fails in any way

accumulateOtherRoles

private void accumulateOtherRoles()
                           throws WTIntrospectionException

Throws:

WTIntrospectionException

accumulateProperties

private void accumulateProperties()
                           throws WTIntrospectionException

Throws:

WTIntrospectionException

accumulatePropertyExtensions

private void accumulatePropertyExtensions(PropertyDescriptor[] property_descriptors)
                                   throws WTIntrospectionException

Throws:

WTIntrospectionException

addInfoRoles

private void addInfoRoles(ArrayList roles,
                          ClassInfo anotherInfo)
                   throws WTIntrospectionException

Throws:

WTIntrospectionException

addPropertyDescriptors

private PropertyDescriptor[] addPropertyDescriptors(PropertyDescriptor[] accumulator,
                                                    HashMap others)
                                             throws WTIntrospectionException

Throws:

WTIntrospectionException

addRole

private void addRole(ArrayList roles,
                     RoleDescriptor newRole)
              throws WTIntrospectionException

Throws:

WTIntrospectionException

addRole

private void addRole(ArrayList roles,
                     RoleDescriptor newRole,
                     int add_index)
              throws WTIntrospectionException

Throws:

WTIntrospectionException

removeDuplicateRole

private boolean removeDuplicateRole(ArrayList roles,
                                    int index,
                                    RoleDescriptor newRole)
                             throws WTIntrospectionException

Throws:

WTIntrospectionException

equals

public boolean equals(Object obj)

Compares two objects for equality. Returns a boolean that indicates whether this object is equivalent to the specified object. This method is used when an object is stored in a hashtable.

Supported API: true

Parameters:

obj - the Object to compare with

Returns:

true if these Objects are equal; false otherwise.

getAttributeValueSet

public Object[] getAttributeValueSet(String name)
                              throws WTIntrospectionException

Gets the set of valid values for the named attribute.

Supported API: true

Returns:

the set of valid values for the attribute

Throws:

WTIntrospectionException

getBusinessClass

public Class getBusinessClass()
                       throws WTIntrospectionException

Gets the business class represented by this info instance.

Supported API: true

Returns:

The business class described by this info instance.

Throws:

WTIntrospectionException

getClassname

public String getClassname()

Gets the class name of the business class represented by this info instance.

Supported API: true

Returns:

The fully qualified name of the business class described by this info instance.

getConcreteClass

public Class getConcreteClass()
                       throws WTIntrospectionException

Gets the instantiable class represented by this info instance.

Supported API: true

Returns:

The instantiable class described by this info instance.

Throws:

WTIntrospectionException

getConstrainedEnum

public static EnumeratedType getConstrainedEnum(Class theClass,
                                                String attribute_name,
                                                String internal_value)

Gets the EnumeratedType instance for an attribute of a class, given an internal value for the EnumeratedType instance.

Supported API: false

Returns:

The EnumeratedType instance for the inputs if the property's type is constrained overridden. If not constrained, returns null.

getDatabaseInfo

public DatabaseInfo getDatabaseInfo()

Gets the DatabaseInfo for this class.

Supported API: false

Returns:

The DatabaseInfo for this class.

getDescendentInfos

public ClassInfo[] getDescendentInfos()
                               throws WTIntrospectionException

Gets an array of ClassInfos of all the descendent classes.

Supported API: true

Returns:

Array of ClassInfos of all the descendent classes

Throws:

WTIntrospectionException

getDirectDescendentInfos

public ClassInfo[] getDirectDescendentInfos()
                                     throws WTIntrospectionException

Gets the direct descendent class infos.

Supported API: true

Returns:

Array of Class objects of the direct descendent class infos

Throws:

WTException - to be determined

WTIntrospectionException

getDisplayName

public String getDisplayName()

Gets the display name for the class.

Supported API: true

Returns:

The display name string.

See Also:

getDisplayName(Locale)

getDisplayName

public String getDisplayName(Locale locale)

Gets the display name for the class, for the specified locale.

Supported API: true

Returns:

The display name string.

getExternalizationVersionUID

public long getExternalizationVersionUID()

Gets the generated externalization UID, if it exists.

Supported API: false

Returns:

The display name string.

getIndex

private static int getIndex(String name,
                            PropertyDescriptor[] properties)
                     throws WTIntrospectionException

Throws:

WTIntrospectionException

getInterfaces

String[] getInterfaces()

getOpenIcon

public String getOpenIcon()
                   throws WTIntrospectionException

Gets the fully qualified class name of the resource bundle for the open icon.

Supported API: true

Returns:

String the fully qualified class name of the resource bundle for the icon

Throws:

WTIntrospectionException

getOtherSideRole

public RoleDescriptor getOtherSideRole(String name)
                                throws WTIntrospectionException

Gets a named RoleDescriptor, which is opposite of this class.

Supported API: true

Returns:

array of RoleDesciptor which can be navigated

Throws:

WTIntrospection - Exception

WTIntrospectionException

See Also:

#getOtherSideRoles(String,LinkInfo)

getOtherSideRole

public RoleDescriptor getOtherSideRole(String name,
                                       LinkInfo info)
                                throws WTIntrospectionException

Gets a named RoleDescriptor, for a particular association, which is opposite of this class.

Supported API: true

Returns:

array of RoleDesciptor which can be navigated

Throws:

WTIntrospection - Exception

WTIntrospectionException

getOtherSideRoles

public RoleDescriptor[] getOtherSideRoles()
                                   throws WTIntrospectionException

Gets an array of RoleDescriptors, which are opposite instances of this class, in all of the associations, within which this class can participate.

Supported API: true

Returns:

array of RoleDesciptors which can be navigated

Throws:

WTIntrospection - Exception

WTIntrospectionException

getParentClassInfo

public ClassInfo getParentClassInfo()
                             throws WTIntrospectionException

Gets the parent class info of the business class represented by this info instance.

Supported API: true

Returns:

The parent class info of the business class described by this info instance.

Throws:

WTIntrospectionException

getParentClassname

public String getParentClassname()

Gets the name of the parent class of the business class represented by this info instance.

Supported API: true

Returns:

The name of the parent class of the business class described by this info instance.

getParentInterfaceInfos

public ClassInfo[] getParentInterfaceInfos()
                                    throws WTIntrospectionException

Gets the parent interface infos for the business class represented by this info instance. (Will only include interfaces that were modeled.)

Supported API: true

Returns:

The parent interface infos of the business class described by this info instance.

Throws:

WTIntrospectionException

getPropertyDescriptor

public PropertyDescriptor getPropertyDescriptor(String name)
                                         throws WTIntrospectionException

Gets a property descriptor for the named attribute of the class.

Supported API: true

Returns:

PropertyDescriptor for the named attribute

Throws:

WTIntrospectionException - if fails to load class or fails to locate named property

getPropertyDescriptor

private static PropertyDescriptor getPropertyDescriptor(String name,
                                                        PropertyDescriptor[] properties)
                                                 throws WTIntrospectionException

Throws:

WTIntrospectionException

getPropertyDescriptors

public PropertyDescriptor[] getPropertyDescriptors()
                                            throws WTIntrospectionException

Gets the array of property descriptors for the class.

Supported API: true

Returns:

PropertyDescriptor[] for the class.

Throws:

WTIntrospectionException - if fails to load class or bean info for class

getPropertyDisplayName

public static String getPropertyDisplayName(PropertyDescriptor property,
                                            Locale locale)

Gets the display name for the named property of the class, for the specified locale.

Supported API: true

Returns:

The property's display name string.

getPropertyShortDescription

public static String getPropertyShortDescription(PropertyDescriptor property,
                                                 Locale locale)

Gets the display name for the property of the class, for the specified locale.

Supported API: true

Returns:

The property's display name string.

getReadPropertyDescriptor

public PropertyDescriptor getReadPropertyDescriptor(String name)
                                             throws WTIntrospectionException

Gets a read-only property descriptor for the named attribute of the class. This method exists as an alternative to getPropertyDescriptor, to avoid the SecurityException that is thrown when reflecting on methods that are not public. That is, when a property has a protected write method (setter).

Supported API: true

Returns:

PropertyDescriptor for the named attribute, which is read-only

Throws:

WTIntrospectionException - if fails to load class or fails to locate named property

getRootContainer

private static Class getRootContainer(String name,
                                      Class container)
                               throws WTIntrospectionException

Throws:

WTIntrospectionException

getSerializableType

public Class getSerializableType()

Gets the type of serialization used by the class, if it is enabled.

Supported API: false

Returns:

The interface that defines the type of serialization.

getSerialVersionUID

public long getSerialVersionUID()

Gets the serialVersionUID for the class.

Supported API: false

Returns:

the UID long.

getStandardIcon

public String getStandardIcon()
                       throws WTIntrospectionException

Gets the fully qualified class name of the resource bundle for the standard icon.

Supported API: true

Returns:

String the fully qualified class name of the resource bundle for the icon

Throws:

WTIntrospectionException

hasDisplayName

public boolean hasDisplayName()

Deprecated.

Supported API: false

haveParentClass

protected boolean haveParentClass()

Supported API: false

isConcrete

public boolean isConcrete()

Gets the concrete status of this class. NOTE: This does not return concrete status in the strict Java class sense.

Supported API: true

Returns:

true, if this class is concrete AND the class is not a ForeignKeyLink with an abstract role class.

isLocalizable

public boolean isLocalizable()

Deprecated.

Supported API: false

isPersistable

public boolean isPersistable()

Gets the persistable status of this class.

Supported API: true

Returns:

true, if this class is persistable

getDatastoreElementType

public DatastoreElementType getDatastoreElementType()

Gets the DatastoreElementType of the class.

Supported API: true

Returns:

DatastoreElementType the datastore element type of the class

isSuperclassOf

private boolean isSuperclassOf(Class aClass)
                        throws WTIntrospectionException

Deprecated. Replaced by java.lang.Class.isAssignableFrom(Class)

Answer whether class parents the supplied class.

Supported API: true

Returns:

true, if this class is a super class of aClass

Throws:

WTIntrospectionException

See Also:

Class, getBusinessClass(), isSuperclassOf(ClassInfo)

isSuperclassOf

public boolean isSuperclassOf(ClassInfo classInfo)
                       throws WTIntrospectionException

Answer whether class parents the supplied classInfo. Result is based on the info descendency information to avoid needing class files.

Supported API: true

Returns:

true, if this class is a super class of classInfo

Throws:

WTIntrospectionException

See Also:

Class, getBusinessClass()

getAttributeColumnDescriptors

public ColumnDescriptor[] getAttributeColumnDescriptors(String name)
                                                 throws WTIntrospectionException

Return all the ColumnDescriptor's (if any) associated with the named attribute.

Supported API: true

Returns:

ColumnDescriptor[]

Throws:

WTIntrospectionException

See Also:

ColumnDescriptor

loadClass

static Class loadClass(String a_classname)
                throws WTIntrospectionException

Throws:

WTIntrospectionException

mergePropertyDescriptors

private void mergePropertyDescriptors(HashMap PDs,
                                      ClassInfo anotherInfo)
                               throws WTIntrospectionException

Throws:

WTIntrospectionException

readMyRoles

private void readMyRoles(ArrayList roles)
                  throws WTIntrospectionException

Throws:

WTIntrospectionException

resourceLookup

static String resourceLookup(String[] key,
                             String attribute,
                             Locale locale)

example: key = "DisplayName" attribute = "wt.fc.PersistInfo.createStamp"

resourceLookup

private String resourceLookup(String[] key,
                              Locale locale)

example: key = "DisplayName" classname = "wt.fc.PersistInfo"

Supported API: false

resourceLookup

private static String resourceLookup(String resourceName,
                                     String[] key,
                                     String elementName,
                                     Locale locale)

example: resourceName = "fcResource" key = "DisplayName" attribute = "PersistInfo.createStamp" locale = WTContext.getContext().getLocale()

Supported API: false

setAbsoluteDir

void setAbsoluteDir(String absolute_dir)

setIconDefault

private void setIconDefault(int icon)
                     throws WTIntrospectionException

Throws:

WTIntrospectionException

setIconName

private String setIconName(ClassInfo info,
                           int icon)
                    throws WTIntrospectionException

Throws:

WTIntrospectionException

setPropertyLocalizables

private static void setPropertyLocalizables(PropertyDescriptor property)

toDisplayNameMessage

public LocalizableMessage toDisplayNameMessage()

Gets an object, which can be used to get a localized message for this class, having the request deferred to time or location where the locale may not be the same as the current locale.

Supported API: true

Returns:

A LocalizableMessage instance, for this class.

toString

public String toString()

Returns a string representation of the object.

Supported API: true

Returns:

a string representation of the object.

getValue

public Object getValue(String attribute_name)

Retrieve a named attribute with this feature.

Supported API: true

Parameters:

attribute_name - - The locale-independent name of the attribute

Returns:

object Return an arbitrary value assigned as an extended property of the class. May be null if the attribute is unknown.

isRemoveEventParticipant

public boolean isRemoveEventParticipant()

Indicates if the persistence layer is required to dispatch Remove events for this class. Remove events include "REMOVE" and "CLEANUP_LINK".

Supported API: false

Returns:

a boolean indicating if Remove events should be dispatched.

readExternal

public void readExternal(ObjectInput input)
                  throws IOException,
                         ClassNotFoundException

Reads the non-transient fields of this class from an external source.

Supported API: false

Specified by:

readExternal in interface Externalizable

Parameters:

input - is an input stream

Throws:

IOException

ClassNotFoundException

writeExternal

public void writeExternal(ObjectOutput output)
                   throws IOException

Writes the non-transient fields of this class to an external source.

Supported API: false

Specified by:

writeExternal in interface Externalizable

Parameters:

output - is an output stream

Throws:

IOException