Package org.hibernate.sql.ast.tree.from

Class DelegatingTableGroup

java.lang.Object

org.hibernate.sql.ast.tree.from.DelegatingTableGroup

All Implemented Interfaces:

DomainResultProducer, SqmPathInterpretation, SqlSelectionProducer, Expression, ColumnReferenceQualifier, TableGroup, SqlAstNode

Direct Known Subclasses:

LazyTableGroup, MappedByTableGroup

public abstract class DelegatingTableGroup
extends Object
implements TableGroup

Constructor Summary

Constructors

Constructor	Description
DelegatingTableGroup()

Method Summary

Modifier and Type	Method	Description
void	accept(SqlAstWalker sqlTreeWalker)
void	addNestedTableGroupJoin(TableGroupJoin join)	A nested table group join is a join against a table group, that is ensured to be joined against the primary table reference and table reference joins in isolation, prior to doing other table group joins e.g.
void	addTableGroupJoin(TableGroupJoin join)
void	applyAffectedTableNames(Consumer<String> nameCollector)
void	applySqlSelections(DomainResultCreationState creationState)	Used when this producer is a selection in a sub-query.
boolean	canUseInnerJoins()
DomainResult	createDomainResult(String resultVariable, DomainResultCreationState creationState)	Produce the domain query
SqlSelection	createSqlSelection(int jdbcPosition, int valuesArrayPosition, JavaType javaType, boolean virtual, TypeConfiguration typeConfiguration)	Create a SqlSelection for the given JDBC ResultSet position
ColumnReference	getColumnReference()
ModelPart	getExpressionType()	The type for this expression
String	getGroupAlias()	If we want to use CTE for TableGroup rendering we will need to know the alias we can use for the group
ModelPartContainer	getModelPart()
NavigablePath	getNavigablePath()
List<TableGroupJoin>	getNestedTableGroupJoins()
TableReference	getPrimaryTableReference()
String	getSourceAlias()
Expression	getSqlExpression()
protected abstract TableGroup	getTableGroup()
List<TableGroupJoin>	getTableGroupJoins()
TableReference	getTableReference(NavigablePath navigablePath, String tableExpression, boolean resolve)	Returns the table reference for the table expression, or null if not found.
TableReference	getTableReference(NavigablePath navigablePath, ValuedModelPart modelPart, String tableExpression, boolean resolve)
List<TableReferenceJoin>	getTableReferenceJoins()
boolean	isFetched()
boolean	isInitialized()	If this is a lazy table group, it may report that it is not initialized, which would also mean that a join referring to this table group should not be rendered.
boolean	isLateral()
boolean	isRealTableGroup()
void	prependTableGroupJoin(NavigablePath navigablePath, TableGroupJoin join)	Adds the given table group join before a join as found via the given navigable path.
void	visitNestedTableGroupJoins(Consumer<TableGroupJoin> consumer)
void	visitTableGroupJoins(Consumer<TableGroupJoin> consumer)

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.hibernate.sql.ast.tree.from.ColumnReferenceQualifier

getTableReference, getTableReference, resolveTableReference, resolveTableReference, resolveTableReference

Methods inherited from interface org.hibernate.sql.ast.tree.expression.Expression

createDomainResultSqlSelection

Methods inherited from interface org.hibernate.sql.ast.tree.from.TableGroup

findCompatibleJoin, findCompatibleJoinedGroup, findTableGroupJoin, findTableReference, hasRealJoins, isVirtual

Constructor Details

DelegatingTableGroup

public DelegatingTableGroup()

Method Details

getTableGroup

protected abstract TableGroup getTableGroup()

getExpressionType

public ModelPart getExpressionType()

Description copied from interface: Expression

The type for this expression

Specified by:

getExpressionType in interface Expression

Specified by:

getExpressionType in interface SqmPathInterpretation

getSqlExpression

public Expression getSqlExpression()

Specified by:

getSqlExpression in interface SqmPathInterpretation

getColumnReference

public ColumnReference getColumnReference()

Specified by:

getColumnReference in interface Expression

createSqlSelection

public SqlSelection createSqlSelection(int jdbcPosition,
 int valuesArrayPosition,
 JavaType javaType,
 boolean virtual,
 TypeConfiguration typeConfiguration)

Description copied from interface: SqlSelectionProducer

Create a SqlSelection for the given JDBC ResultSet position

Specified by:

createSqlSelection in interface Expression

Specified by:

createSqlSelection in interface SqlSelectionProducer

Parameters:

jdbcPosition - The index position used to read values from JDBC

valuesArrayPosition - The position in our "current JDBC values array"

javaType - The descriptor for the Java type to read the value as

virtual - Whether the select is virtual or real. See SqlSelection.isVirtual()

typeConfiguration - The associated TypeConfiguration

getTableReference

public TableReference getTableReference(NavigablePath navigablePath,
 String tableExpression,
 boolean resolve)

Description copied from interface: ColumnReferenceQualifier

Returns the table reference for the table expression, or null if not found.

Specified by:

getTableReference in interface ColumnReferenceQualifier

Parameters:

navigablePath - The path for which to look up the table reference, may be null

tableExpression - The table expression for which to look up the table reference

resolve - Whether to potentially create table reference joins for this table group

getTableReference

public TableReference getTableReference(NavigablePath navigablePath,
 ValuedModelPart modelPart,
 String tableExpression,
 boolean resolve)

Specified by:

getTableReference in interface ColumnReferenceQualifier

getNavigablePath

public NavigablePath getNavigablePath()

Specified by:

getNavigablePath in interface SqmPathInterpretation

Specified by:

getNavigablePath in interface TableGroup

getGroupAlias

public String getGroupAlias()

Description copied from interface: TableGroup

If we want to use CTE for TableGroup rendering we will need to know the alias we can use for the group

Specified by:

getGroupAlias in interface TableGroup

getModelPart

public ModelPartContainer getModelPart()

Specified by:

getModelPart in interface TableGroup

getSourceAlias

public String getSourceAlias()

Specified by:

getSourceAlias in interface TableGroup

getTableGroupJoins

public List<TableGroupJoin> getTableGroupJoins()

Specified by:

getTableGroupJoins in interface TableGroup

getNestedTableGroupJoins

public List<TableGroupJoin> getNestedTableGroupJoins()

Specified by:

getNestedTableGroupJoins in interface TableGroup

canUseInnerJoins

public boolean canUseInnerJoins()

Specified by:

canUseInnerJoins in interface TableGroup

isLateral

public boolean isLateral()

Specified by:

isLateral in interface TableGroup

addTableGroupJoin

public void addTableGroupJoin(TableGroupJoin join)

Specified by:

addTableGroupJoin in interface TableGroup

prependTableGroupJoin

public void prependTableGroupJoin(NavigablePath navigablePath,
 TableGroupJoin join)

Description copied from interface: TableGroup

Adds the given table group join before a join as found via the given navigable path.

Specified by:

prependTableGroupJoin in interface TableGroup

addNestedTableGroupJoin

public void addNestedTableGroupJoin(TableGroupJoin join)

Description copied from interface: TableGroup

A nested table group join is a join against a table group, that is ensured to be joined against the primary table reference and table reference joins in isolation, prior to doing other table group joins e.g. select * from entity1 e left join ( collection_table c1 join association a on a.id = c1.target_id ) on c1.entity_id = e.id and c1.key = 1 is modeled as TableGroup( primaryTableReference = TableReference(entity1, e), tableGroupJoins = [ TableGroupJoin( TableGroup( primaryTableReference = TableReference(collection_table, c1), nestedTableGroupJoins = [ TableGroupJoin( TableGroup( primaryTableReference = TableReference(association, a) ) ) ] ) ) ] ) This is necessary to correctly retain the cardinality of an HQL join like e.g. from Entity1 e left join e.collectionAssociation c on key(c) = 1

Specified by:

addNestedTableGroupJoin in interface TableGroup

visitTableGroupJoins

public void visitTableGroupJoins(Consumer<TableGroupJoin> consumer)

Specified by:

visitTableGroupJoins in interface TableGroup

visitNestedTableGroupJoins

public void visitNestedTableGroupJoins(Consumer<TableGroupJoin> consumer)

Specified by:

visitNestedTableGroupJoins in interface TableGroup

applyAffectedTableNames

public void applyAffectedTableNames(Consumer<String> nameCollector)

Specified by:

applyAffectedTableNames in interface TableGroup

getPrimaryTableReference

public TableReference getPrimaryTableReference()

Specified by:

getPrimaryTableReference in interface TableGroup

getTableReferenceJoins

public List<TableReferenceJoin> getTableReferenceJoins()

Specified by:

getTableReferenceJoins in interface TableGroup

createDomainResult

public DomainResult createDomainResult(String resultVariable,
 DomainResultCreationState creationState)

Description copied from interface: DomainResultProducer

Produce the domain query

Specified by:

createDomainResult in interface DomainResultProducer

Specified by:

createDomainResult in interface TableGroup

applySqlSelections

public void applySqlSelections(DomainResultCreationState creationState)

Description copied from interface: DomainResultProducer

Used when this producer is a selection in a sub-query. The DomainResult is only needed for root query of a SELECT statement. This default impl assumes this producer is a true (Sql)Expression

Specified by:

applySqlSelections in interface DomainResultProducer

Specified by:

applySqlSelections in interface TableGroup

accept

public void accept(SqlAstWalker sqlTreeWalker)

Specified by:

accept in interface SqlAstNode

Specified by:

accept in interface TableGroup

isRealTableGroup

public boolean isRealTableGroup()

Specified by:

isRealTableGroup in interface TableGroup

isFetched

public boolean isFetched()

Specified by:

isFetched in interface TableGroup

isInitialized

public boolean isInitialized()

Description copied from interface: TableGroup

If this is a lazy table group, it may report that it is not initialized, which would also mean that a join referring to this table group should not be rendered.

Specified by:

isInitialized in interface TableGroup