uk.ac.ed.epcc.webapp

Interface Targetted<T>

Type Parameters:

T -

All Known Subinterfaces:

AcceptFilter<T>, Accessor<T,R>, ActionListener<R>, BaseFilter<T>, BaseSQLFilter<T>, BinaryFilter<T>, DateSQLExpression, EnumeratingTypeConverter<T,D>, FieldSQLExpression<T,X>, FieldValue<T,X>, FilterProvider<T,D>, GroupingSQLValue<T>, IndexedLinkManager.LinkProvider<T,L,R>, IndexedProducer<A>, IndexedSQLValue<T,I>, JoinFilter<T>, Labeller<T,R>, LifeCycleListener<R>, LogOwner<O>, NestedSQLValue<T,N>, OrderFilter<T>, Owner<D>, PatternFilter<T>, PreferenceSetting<V>, QuestionFormHandler<T>, Setting<V>, SQLAccessor<T,R>, SQLExpression<T>, SQLFilter<T>, SQLOrderFilter<T>, SQLValue<T>, TypeConverter<T,D>, TypeFilterProducer<T,D>, TypeProducer<T,D>, WrappedSQLExpression<T>

All Known Implementing Classes:

AbstractAcceptFilter, AbstractAction, AbstractConstructedTargetList, AbstractContexedAction, AbstractContextedListener, AbstractListener, AbstractMessageHandlerFactory, AbstractMessageHandlerFactory.Status, AbstractRelationship, AbstractRequestFactory, AbstractSelfSQLValue, AbstractSetting, AbstractTargetRequestFactory, AbstractTextHandler, AbstractUserRequestFactory, AbstractUserSettingFactory, ActionList, AliasSQLValue, AndAcceptFilter, AndFilter, AppUserFactory, AppUserFactory.RoleFilter, AppUserFactory.SignupFormCreator, AppUserUpdater, ArrayFuncExpression, ArrayFuncValue, AverageValueSQLValue, BackJoinFilter, BadKeyFactory, BaseCombineFilter, BaseSQLCombineFilter, BasicType, BinaryAcceptFilter, BinaryExpression, BinarySQLValue, BooleanDataManager, BooleanFieldExpression, BooleanHandler, CachedIndexedProducer, CaseExpression, CastDoubleSQLExpression, CastLongSQLExpression, ClassificationFactory, ClassificationFactory.ClassificationCreator, ClassificationFactory.ClassificationUpdater, ClassificationHandler, ClassType, CompareSQLExpression, CompareSQLValue, CompositeIndexedSQLValue, ConcatSQLExpression, ConstExpression, ConstIndexedSQLValue, ConstJoinerFilter, ConvertToAcceptFilter, CountDistinctExpression, CreateTransition, Creator, DatabasePasswordComposite.AcceptHashFilter, DatabasePasswordComposite.PasswordStatus, DatabasePasswordComposite.SQLHashFilter, DataObjectDataProducer, DataObjectFactory, DataObjectFactory.AbstractFinder, DataObjectFactory.DataObjectAcceptFilter, DataObjectFactory.DestAcceptFilter, DataObjectFactory.FilterCounter, DataObjectFactory.FilterExists, DataObjectFactory.FilterIterator, DataObjectFactory.Finder, DataObjectFactory.MatchFilter, DataObjectFactory.ReferenceIterator, DataObjectFactory.TimeAcceptFilter, DataObjectFactory.TimeFilter, DataObjectFormFactory, DataObjectUpdateFormFactory, DataStore, DateDataManager, DateDerefSQLExpression, DateFieldExpression, DateHandler, DateSQLValue, DerefSQLExpression, DistinctCountSQLValue, DoubleConvertSQLValue, DualFilter, DurationAccessor, DurationConvertSQLValue, DurationFieldValue, DurationSecondConvertSQLValue, DurationSQLExpression, DurationSQLValue, DynamicFormManager, DynamicFormManager.Status, DynamicFormTransitionProvider.Creator, EmailChangeRequestFactory, EmailHandler, EmailListHandler, EnumPreference, EnumProducer, EnumSetting, FalseFilter, Feature, FieldExpression, FieldOrderFilter, FieldValueFilter, FileDataFactory, FileUploadHandler, FilterFinder, FilterMaker, FilterReader, FuncExpression, GenericBinaryFilter, GlobalRoleFilter, HandlerPartManager, HistoryFactory, HistoryFactory.HistoryFilter, IdAcceptFilter, IdLabeller, IndexedFieldValue, IndexedLinkManager, IndexedLinkManager.LinkFilter, IndexedLinkManager.LinkUpdater, IndexedLinkManager.SQLLinkFilter, IndexedTypeProducer, IntConvertAccessor, IntConvertSQLValue, IntegerDataManager, IntegerHandler, Joiner, JoinerFilter, LabellerSQLValue, LazyIndexProducer, LazyTypeConverter, LengthExpression, LinkHistoryAcceptFilter, LinkHistoryManager, LinkHistorySQLFilter, LinkManager, LinkManager.JoinLinkFilterIterator, LinkManager.LeftAcceptFilter, LinkManager.RightAcceptFilter, ListenerList, LocateSQLExpression, LocateSQLValue, LockFactory, LogFactory, LogFactory.DateFilter, LogFactory.ItemDateFilter, LogFactory.ItemType, LogFactory.TypeFilter, LongConvertSQLValue, MessageData.Factory, MillisecondAccessor, MillisecondSQLValue, MultiIntegerHandler, MultiLinkManager, MultiNameFactory, MysqlDateConverter, MysqlMillisecondConverter, MysqlSQLHashExpression, MysqlTimestampDiffExpr, NotAcceptFilter, NullFieldFilter, NumberFieldExpression, NumericEnumProducer, OptionDataManager, OptionHandler, OrFilter, OrphanFilter, OrphanReferenceFilter, PageManager, PartConfigFactory, PartManager, PartManager.PartCreator, PartManager.PartUpdater, PartOwnerFactory, PasswordChangeRequestFactory, PersonalResponseManager, PersonHistoryFactory, PersonRelationship, PhoneNumberHandler, PostgresqlDateConverter, PostgresqlMillisecondConverter, PredicateAcceptFilter, PreferedViewFactory, Preference, PrimaryOrderFilter, PropertyFactory, QuestionManager, RangeSearch.InfoFinder, ReferenceAcceptFilter, ReferenceFilter, Relationship, RelationshipLinkManager, RemoteAcceptFilter, RemoteSQLValue, ResponseDataManager, ResponseManager, ResultIterator, RoleUpdate, RoundSQLExpression, SectionManager, SelectAccessor, SelfIdExpression, SelfReferenceFilter, SelfSQLValue, SetMaker, SimpleClassType, SQLAndFilter, SQLExpressionFilter, SQLExpressionMatchFilter, SQLExpressionNullFilter, SQLExpressionOrderFilter, SQLFormFilter, SQLIdFilter, SQLNotFilter, SQLOrFilter, SQLResultIterator, SQLSelectValue, SQLValueFilter, SQLValuePatternTransform, StateRelationshipComposite.Filter, StateRelationshipComposite.PersonFilter, StreamDataDataManager, StreamDataFieldExpression, StringConvertAccessor, StringConvertSQLExpression, StringConvertSQLValue, StringDataManager, StringFieldExpression, StringPreference, StringSetting, TableMaker, TextDataFactory, TextFileOverlay, TextFileOverlay.TextFileCreator, TextHandler, TimestampDateFieldExpression, TupleFactory, TupleFactory.AbstractFinder, TupleFactory.AcceptFilterConverter, TupleFactory.FilterCounter, TupleFactory.FilterExists, TupleFactory.TupleAndFilter, TupleFactory.TupleIterator, TupleSelfSQLValue, TypeConverterSQLValue, TypeFilterProducerSQLValue, TypeProducerFieldValue, Updater, UpdateTransition, UserSettingFactory, UserStringSettingFactory, ValueFilter, WildCardReferenceFilter, WtmpManager, WtmpManager.DateFilter, WtmpManager.LoginFinder, XMLOverlay

public interface Targetted<T>

Object with a target type that can be queried at run-time. The primary purpose of this interface is to make a generic type explicit in code, for example a factory class can be queried for the type of object it creates of a filter can be queried for the types if filters. One use case is for run-time type checking. This also allows interactions between Targetted types so the target class returned by the factory can be used to construct compatible filters.

Method Summary

Modifier and Type	Method and Description
java.lang.Class<T>	getTarget() Get the type of the returned object as far as it is known.

Method Detail

getTarget

java.lang.Class<T> getTarget()

Get the type of the returned object as far as it is known. Normally this should be the erasure type corresponding to T.

Returns:

Class object for return type