Package io.jmix.aitools.dataload.execution

Class JpqlAccessSupport.EntityOccurrence

java.lang.Object

io.jmix.aitools.dataload.execution.JpqlAccessSupport.EntityOccurrence

Enclosing class:

JpqlAccessSupport

protected static class JpqlAccessSupport.EntityOccurrence
extends Object

Where one entity occurs in a query.

Field Summary

Fields

Modifier and Type	Field	Description
protected boolean	inner	Whether the entity also occurs where an outer condition cannot reach it: in a subquery, or as a collection without an alias.
protected final Set<String>	leftJoinTargets	Variables declared for the entity by a left join of the outer query.
protected final Map<String,@Nullable String>	outerTargets	The entity's aliases and the path prefixes reaching it in the outer query, each mapped to its null check or null.
protected final Map<String,JpqlAccessSupport.ReferenceTarget>	referenceTargets	Outer references the query reads by themselves or through their primary key (d.parent for d.parent is null or d.parent.id).

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	EntityOccurrence()

Method Summary

Modifier and Type	Method	Description
protected boolean	hasOnTargets()
protected boolean	readsForeignKeyOnly()

Methods inherited from class java.lang.Object

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

Field Details

outerTargets

protected final Map<String,@Nullable String> outerTargets

The entity's aliases and the path prefixes reaching it in the outer query, each mapped to its null check or null. Their conditions go to the outer where.

leftJoinTargets

protected final Set<String> leftJoinTargets

Variables declared for the entity by a left join of the outer query. Their conditions go to the join's own on, so that a hidden record is joined as an absent one.

referenceTargets

protected final Map<String,JpqlAccessSupport.ReferenceTarget> referenceTargets

Outer references the query reads by themselves or through their primary key (d.parent for d.parent is null or d.parent.id). Each is rewritten into a left join of its own.

inner

protected boolean inner

Whether the entity also occurs where an outer condition cannot reach it: in a subquery, or as a collection without an alias.

Constructor Details

EntityOccurrence

protected EntityOccurrence()

Method Details

hasOnTargets

protected boolean hasOnTargets()

readsForeignKeyOnly

protected boolean readsForeignKeyOnly()