Package org.hibernate.dialect.aggregate

Class PostgreSQLAggregateSupport

java.lang.Object

org.hibernate.dialect.aggregate.AggregateSupportImpl

org.hibernate.dialect.aggregate.PostgreSQLAggregateSupport

All Implemented Interfaces:

AggregateSupport

public class PostgreSQLAggregateSupport
extends AggregateSupportImpl

Nested Class Summary

Nested classes/interfaces inherited from interface org.hibernate.dialect.aggregate.AggregateSupport

AggregateSupport.AggregateColumnWriteExpression, AggregateSupport.WriteExpressionRenderer

Constructor Summary

Constructors

Constructor	Description
PostgreSQLAggregateSupport()

Method Summary

Modifier and Type	Method	Description
String	aggregateComponentAssignmentExpression(String aggregateParentAssignmentExpression, String column, ColumnTypeInformation aggregateColumnType, ColumnTypeInformation columnType)	Returns the assignment expression to use for column, which is part of the aggregate type of aggregatePath.
String	aggregateComponentCustomReadExpression(String template, String placeholder, String aggregateParentReadExpression, String column, ColumnTypeInformation aggregateColumnType, ColumnTypeInformation columnType)	Returns the custom read expression to use for column.
AggregateSupport.WriteExpressionRenderer	aggregateCustomWriteExpressionRenderer(SelectableMapping aggregateColumn, SelectableMapping[] columnsToUpdate, TypeConfiguration typeConfiguration)
boolean	preferSelectAggregateMapping(int aggregateSqlTypeCode)	Whether to prefer selecting the aggregate column as a whole instead of individual parts.
boolean	requiresAggregateCustomWriteExpressionRenderer(int aggregateSqlTypeCode)	Whether AggregateSupport.aggregateCustomWriteExpressionRenderer(SelectableMapping, SelectableMapping[], TypeConfiguration) is needed when assigning an expression to individual aggregated columns in an update statement.
static AggregateSupport	valueOf(Dialect dialect)

Methods inherited from class org.hibernate.dialect.aggregate.AggregateSupportImpl

aggregateAuxiliaryDatabaseObjects, aggregateComponentSqlTypeCode, aggregateCustomWriteExpression, preferBindAggregateMapping, supportsComponentCheckConstraints

Methods inherited from class java.lang.Object

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

Constructor Detail

PostgreSQLAggregateSupport

public PostgreSQLAggregateSupport()

Method Detail

valueOf

public static AggregateSupport valueOf(Dialect dialect)

aggregateComponentCustomReadExpression

public String aggregateComponentCustomReadExpression(String template,
                                                     String placeholder,
                                                     String aggregateParentReadExpression,
                                                     String column,
                                                     ColumnTypeInformation aggregateColumnType,
                                                     ColumnTypeInformation columnType)

Description copied from interface: AggregateSupport

Returns the custom read expression to use for column. Replaces the given placeholder in the given template by the custom read expression to use for column.

Specified by:

aggregateComponentCustomReadExpression in interface AggregateSupport

Overrides:

aggregateComponentCustomReadExpression in class AggregateSupportImpl

Parameters:

template - The custom read expression template of the column

placeholder - The placeholder to replace with the actual read expression

aggregateParentReadExpression - The expression to the aggregate column, which contains the column

column - The column within the aggregate type, for which to return the read expression

aggregateColumnType - The type information for the aggregate column

columnType - The type information for the column within the aggregate type

aggregateComponentAssignmentExpression

public String aggregateComponentAssignmentExpression(String aggregateParentAssignmentExpression,
                                                     String column,
                                                     ColumnTypeInformation aggregateColumnType,
                                                     ColumnTypeInformation columnType)

Description copied from interface: AggregateSupport

Returns the assignment expression to use for column, which is part of the aggregate type of aggregatePath.

Specified by:

aggregateComponentAssignmentExpression in interface AggregateSupport

Overrides:

aggregateComponentAssignmentExpression in class AggregateSupportImpl

Parameters:

aggregateParentAssignmentExpression - The expression to the aggregate column, which contains the column

column - The column within the aggregate type, for which to return the assignment expression

aggregateColumnType - The type information for the aggregate column

columnType - The type information for the column within the aggregate type

requiresAggregateCustomWriteExpressionRenderer

public boolean requiresAggregateCustomWriteExpressionRenderer(int aggregateSqlTypeCode)

Description copied from interface: AggregateSupport

Whether AggregateSupport.aggregateCustomWriteExpressionRenderer(SelectableMapping, SelectableMapping[], TypeConfiguration) is needed when assigning an expression to individual aggregated columns in an update statement.

Specified by:

requiresAggregateCustomWriteExpressionRenderer in interface AggregateSupport

Overrides:

requiresAggregateCustomWriteExpressionRenderer in class AggregateSupportImpl

preferSelectAggregateMapping

public boolean preferSelectAggregateMapping(int aggregateSqlTypeCode)

Description copied from interface: AggregateSupport

Whether to prefer selecting the aggregate column as a whole instead of individual parts.

Specified by:

preferSelectAggregateMapping in interface AggregateSupport

Overrides:

preferSelectAggregateMapping in class AggregateSupportImpl

aggregateCustomWriteExpressionRenderer

public AggregateSupport.WriteExpressionRenderer aggregateCustomWriteExpressionRenderer(SelectableMapping aggregateColumn,
                                                                                       SelectableMapping[] columnsToUpdate,
                                                                                       TypeConfiguration typeConfiguration)

Specified by:

aggregateCustomWriteExpressionRenderer in interface AggregateSupport

Overrides:

aggregateCustomWriteExpressionRenderer in class AggregateSupportImpl

Parameters:

aggregateColumn - The mapping of the aggregate column

columnsToUpdate - The mappings of the columns that should be updated

typeConfiguration - The type configuration