uk.ac.ed.epcc.webapp.model.data

Class SelfSQLValue<T extends DataObject>

java.lang.Object

uk.ac.ed.epcc.webapp.model.data.AbstractSelfSQLValue<T,T>

uk.ac.ed.epcc.webapp.model.data.SelfSQLValue<T>

Type Parameters:

T -

All Implemented Interfaces:

Accessor<IndexedReference,T>, FilterProvider<T,IndexedReference>, GroupingSQLValue<IndexedReference>, IndexedSQLValue<T,T>, SQLAccessor<IndexedReference,T>, SQLValue<IndexedReference>, Targetted<IndexedReference>

public class SelfSQLValue<T extends DataObject>
extends AbstractSelfSQLValue<T,T>

SQLValue of a Reference to the current record

Constructor Summary

Constructors

Constructor and Description
SelfSQLValue(DataObjectFactory<T> fac)

Method Summary

Modifier and Type	Method and Description
java.lang.Class<T>	getFilterType() get the type bounds on the produced SQLFilter.
SQLFilter<T>	getSQLFilter(SQLFilter<T> fil) Create a filter for the home table out of a a filter on the target object.
IndexedReference<T>	getValue(T r) get the value from the target object
java.lang.String	toString()

Methods inherited from class uk.ac.ed.epcc.webapp.model.data.AbstractSelfSQLValue

add, canSet, getFactory, getFilter, getIDExpression, getNullFilter, getOrderFilter, getParameters, getRequiredFilter, getTarget, groupingIsomorphic, makeObject, makeReference, setValue

Methods inherited from class java.lang.Object

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

Methods inherited from interface uk.ac.ed.epcc.webapp.jdbc.expr.GroupingSQLValue

addGroup, checkContentsCanGroup, getGroupParameters

Constructor Detail

SelfSQLValue

public SelfSQLValue(DataObjectFactory<T> fac)

Method Detail

toString

public java.lang.String toString()

Overrides:

toString in class AbstractSelfSQLValue<T extends DataObject,T extends DataObject>

getValue

public IndexedReference<T> getValue(T r)

Description copied from interface: Accessor

get the value from the target object

Parameters:

r - target object

Returns:

value

getFilterType

public java.lang.Class<T> getFilterType()

Description copied from interface: FilterProvider

get the type bounds on the produced SQLFilter.

Returns:

Class

getSQLFilter

public SQLFilter<T> getSQLFilter(SQLFilter<T> fil)
                          throws CannotFilterException

Description copied from interface: IndexedSQLValue

Create a filter for the home table out of a a filter on the target object. This adds any necessary join filters. If fil is null it only returns the necessary join filter.

Returns:

SQLFilter

Throws:

CannotFilterException