de.ipcon.db.core

Class UnresolvedReferencesResolver

java.lang.Object

de.ipcon.db.core.UnresolvedReferencesResolver

public class UnresolvedReferencesResolver
extends java.lang.Object

UnresolvedReferencesCache maintains a list of references to not-yet-existing objects (represented by PairStorages) and for each of them a list of BO/AttributeI(name) combinations. This can be used to resolve/actually set the references once all required objects have been loaded/created/do exist.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
class	UnresolvedReferencesResolver.MultipleReferencesWarning
class	UnresolvedReferencesResolver.NullReferenceWarning
class	UnresolvedReferencesResolver.Warning

Field Summary

Fields

Modifier and Type	Field and Description
static org.apache.log4j.Logger	log

Constructor Summary

Constructors

Constructor and Description
UnresolvedReferencesResolver(SchemaI _schema)

Method Summary

Modifier and Type	Method and Description
void	addRequest(PairStorage psTo, BO boFrom, java.lang.String attrnameFrom) Adds a request to later resolve the references specified by _boFrom and the relation attribute _attrnameFrom to the object represented by _psTo
void	addResolved(PairStorage psTo, BO boTo) Adds a mapping for psTo to the actual object boTo.
void	addWarning(UnresolvedReferencesResolver.Warning warning)
void	dumpUnresolved() For debugging.
void	dumpUnresolved(MiniLogI miniLog)
BO	getResolved(PairStorage psTo) Returns the actual object for psTo (if a matching mapping is available).
UnresolvedReferencesResolver.Warning[]	getWarnings()
boolean	hasUnresolved()
PairStorage	hasUnresolved(BO boTo) Returns the PairStorage of the first unresolved reference if this URR knows about at least one still unresolved reference of _boTo; null if all references of _boTo have been resolved (or this URR does not know about any unresolved references).
void	loadBOs(Transaction tx) Loads the BOs from the DB for all unresolved references of class Benannt (or subclasses thereof).
void	loadBOs(Transaction tx, boolean allowAutomatik)
void	resolve() Tries to resolve all queued references.
void	resolve(Transaction tx)

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

log

public static final org.apache.log4j.Logger log

Constructor Detail

UnresolvedReferencesResolver

public UnresolvedReferencesResolver(SchemaI _schema)

Method Detail

addRequest

public void addRequest(PairStorage psTo,
                       BO boFrom,
                       java.lang.String attrnameFrom)
                throws AttributeResolveException,
                       EntityResolveException

Adds a request to later resolve the references specified by _boFrom and the relation attribute _attrnameFrom to the object represented by _psTo

Throws:

AttributeResolveException

EntityResolveException

addResolved

public void addResolved(PairStorage psTo,
                        BO boTo)

Adds a mapping for psTo to the actual object boTo.

getResolved

public BO getResolved(PairStorage psTo)

Returns the actual object for psTo (if a matching mapping is available).

resolve

public void resolve()

Tries to resolve all queued references. References that could not be resolved will remain in mapTodo.

resolve

public void resolve(Transaction tx)

hasUnresolved

public boolean hasUnresolved()

hasUnresolved

public PairStorage hasUnresolved(BO boTo)

Returns the PairStorage of the first unresolved reference if this URR knows about at least one still unresolved reference of _boTo; null if all references of _boTo have been resolved (or this URR does not know about any unresolved references).

dumpUnresolved

public void dumpUnresolved()

For debugging.

dumpUnresolved

public void dumpUnresolved(MiniLogI miniLog)

loadBOs

public void loadBOs(Transaction tx)

Loads the BOs from the DB for all unresolved references of class Benannt (or subclasses thereof).

loadBOs

public void loadBOs(Transaction tx,
                    boolean allowAutomatik)

addWarning

public void addWarning(UnresolvedReferencesResolver.Warning warning)

getWarnings

public UnresolvedReferencesResolver.Warning[] getWarnings()