Package com.evolveum.midpoint.repo.sql.query.restriction

Class Restriction<T extends ObjectFilter>

java.lang.Object

com.evolveum.midpoint.repo.sql.query.restriction.Restriction<T>

Direct Known Subclasses:

FullTextRestriction, InOidRestriction, ItemRestriction, LogicalRestriction, OrgRestriction, TypeRestriction

public abstract class Restriction<T extends ObjectFilter>
extends Object

An image of an ObjectFilter, forming a restriction tree. Preserves some state related to the interpretation (translation). Provides functionality related to the translation. As for the state, we maintain (or, more precisely, we are able to determine) the following: - base HQL property path for the restriction - base EntityDefinition for the restriction - chain of translation states that led to the starting HQL property path (if applicable) This is stored in baseHqlEntity. Most restrictions do not change the above properties when propagating them to their children. However, Type and Exists restrictions do. The former changes EntityDefinition, the latter all three. Also, item-related restrictions may, at their own discretion, use an EntityDefinition that points to a subclass of the one provided by the parent restriction. They do that if the item referenced (e.g. location) is not available in the provided entity (e.g. RObject or RFocus or RAbstractRole), but has to be found deeper. There is one known problem in this respect, though: locality attribute. It is present in UserType as well as in OrgType. So, if having query like ObjectType: Equals(locality, 'abc') it might be narrowed as o.localityUser or o.locality. (Maybe there are other attributes like that, I don't know.)

Author:

lazyman, mederly

Field Summary

Fields

Modifier and Type	Field	Description
protected @NotNull InterpretationContext	context
protected T	filter
protected Restriction	parent

Constructor Summary

Constructors

Constructor	Description
Restriction(@NotNull InterpretationContext context, T filter, @NotNull JpaEntityDefinition baseEntityDefinition, Restriction parent)

Method Summary

Modifier and Type	Method	Description
HqlEntityInstance	getBaseHqlEntity()
HqlEntityInstance	getBaseHqlEntityForChildren()
@NotNull InterpretationContext	getContext()
T	getFilter()
protected ItemPathResolver	getItemPathResolver()
Restriction	getParent()
abstract Condition	interpret()
protected boolean	isNegated()
protected String	nameOf(Enum e)

Methods inherited from class java.lang.Object

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

Field Detail

context

@NotNull
protected final @NotNull InterpretationContext context

parent

protected final Restriction parent

filter

@NotNull
protected final T extends ObjectFilter filter

Constructor Detail

Restriction

public Restriction(@NotNull
                   @NotNull InterpretationContext context,
                   @NotNull
                   T filter,
                   @NotNull
                   @NotNull JpaEntityDefinition baseEntityDefinition,
                   Restriction parent)

Method Detail

getFilter

@NotNull
public T getFilter()

getContext

@NotNull
public @NotNull InterpretationContext getContext()

getParent

public Restriction getParent()

getBaseHqlEntity

public HqlEntityInstance getBaseHqlEntity()

interpret

public abstract Condition interpret()
                             throws QueryException

Throws:

QueryException

isNegated

protected boolean isNegated()

nameOf

protected String nameOf(Enum e)

getBaseHqlEntityForChildren

public HqlEntityInstance getBaseHqlEntityForChildren()

getItemPathResolver

protected ItemPathResolver getItemPathResolver()