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

Class TupleFactory.AbstractFinder<X>

java.lang.Object

uk.ac.ed.epcc.webapp.jdbc.filter.FilterSelect<T>

uk.ac.ed.epcc.webapp.jdbc.filter.FilterReader<T,O>

uk.ac.ed.epcc.webapp.jdbc.filter.FilterMaker<T,O>

uk.ac.ed.epcc.webapp.jdbc.filter.FilterFinder<T,X>

uk.ac.ed.epcc.webapp.model.data.TupleFactory.AbstractFinder<X>

All Implemented Interfaces:

Contexed, Targetted<T>

Direct Known Subclasses:

TupleFactory.FilterCounter, TupleFactory.FilterExists

Enclosing class:

TupleFactory<A extends DataObject,AF extends DataObjectFactory<A>,T extends TupleFactory.Tuple<A>>

protected abstract class TupleFactory.AbstractFinder<X>
extends FilterFinder<T,X>

Constructor Summary

Constructors

Constructor and Description
AbstractFinder()
AbstractFinder(boolean allow_null)

Method Summary

Modifier and Type	Method and Description
protected void	addSource(java.lang.StringBuilder sb)
protected java.lang.String	getDBTag() Get the tag used to create the connection for this query from a DatabaseService.
boolean	getQualify() Should field names be qualified.
protected java.util.Set<Repository>	getSourceTables()

Methods inherited from class uk.ac.ed.epcc.webapp.jdbc.filter.FilterFinder

find, find

Methods inherited from class uk.ac.ed.epcc.webapp.jdbc.filter.FilterMaker

make

Methods inherited from class uk.ac.ed.epcc.webapp.jdbc.filter.FilterReader

getContext, getFilter, getLockClause, getLogger, getModify, getModifyParameters, getTarget, getTargetParameters, makeDefault, makeEntry, makeSelect, setFilter, setMapper, setQualify, toString

Methods inherited from class uk.ac.ed.epcc.webapp.jdbc.filter.FilterSelect

getFilterArguments, isEmpty, makeWhere, setParams

Methods inherited from class java.lang.Object

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

Constructor Detail

AbstractFinder

public AbstractFinder(boolean allow_null)

AbstractFinder

public AbstractFinder()

Method Detail

addSource

protected final void addSource(java.lang.StringBuilder sb)

Specified by:

addSource in class FilterReader<T extends TupleFactory.Tuple<A>,X>

getDBTag

protected final java.lang.String getDBTag()

Description copied from class: FilterReader

Get the tag used to create the connection for this query from a DatabaseService. Normally this just queries the repository for the main table in the query (as this table HAS to take part) and relies on the query failing if there is an illegal join. Any more advanced checking should really be done when constructing the filter as this is where there is a chance to recover from the error.

Specified by:

getDBTag in class FilterReader<T extends TupleFactory.Tuple<A>,X>

Returns:

getSourceTables

protected final java.util.Set<Repository> getSourceTables()

Specified by:

getSourceTables in class FilterReader<T extends TupleFactory.Tuple<A>,X>

getQualify

public final boolean getQualify()

Description copied from class: FilterReader

Should field names be qualified. Sub-classes can override to force this to true;

Overrides:

getQualify in class FilterReader<T extends TupleFactory.Tuple<A>,X>

Returns:

boolean true if fields should be qualified