Top Description Constructors Methods
org.hibernate.dialect.function

public Class PostgreSQLMinMaxFunction

extends AbstractSqmSelfRenderingFunctionDescriptor
Class Inheritance
Imports
java.util.List, org.hibernate.metamodel.mapping.JdbcMapping, org.hibernate.query.ReturnableType, org.hibernate.query.sqm.function.AbstractSqmSelfRenderingFunctionDescriptor, .FunctionKind, org.hibernate.query.sqm.produce.function.ArgumentTypesValidator, .StandardArgumentsValidators, .StandardFunctionArgumentTypeResolvers, .StandardFunctionReturnTypeResolvers, org.hibernate.sql.ast.Clause, .SqlAstTranslator, org.hibernate.sql.ast.spi.SqlAppender, org.hibernate.sql.ast.tree.SqlAstNode, org.hibernate.sql.ast.tree.expression.Expression, org.hibernate.sql.ast.tree.predicate.Predicate, org.hibernate.type.SqlTypes

Deprecated

as a consequence of AbstractSqmSelfRenderingFunctionDescriptor being deprecated. See corresponding docs for further information.

PostgreSQL doesn't support min/max for uuid yet, but since that type is comparable we want to support this operation. The workaround is to cast uuid to text and aggregate that, which preserves the ordering, and finally cast the result back to uuid.
Author
Christian Beikov

Constructor Summary

AccessConstructor and Description
public
PostgreSQLMinMaxFunction(String name)

Method Summary

Modifier and TypeMethod and Description
public String
getArgumentListSignature()

Overrides org.hibernate.query.sqm.function.AbstractSqmFunctionDescriptor.getArgumentListSignature.

public void
render(SqlAppender sqlAppender, List<? extends SqlAstNode> sqlAstArguments, ReturnableType<?> returnType, SqlAstTranslator<?> walker)

Overrides org.hibernate.query.sqm.function.AbstractSqmSelfRenderingFunctionDescriptor.render.

Implements org.hibernate.query.sqm.function.FunctionRenderer.render.

public void
render(SqlAppender sqlAppender, List<? extends SqlAstNode> sqlAstArguments, Predicate filter, ReturnableType<?> returnType, SqlAstTranslator<?> translator)

Overrides default org.hibernate.query.sqm.function.FunctionRenderer.render.

private String
renderArgument(SqlAppender sqlAppender, SqlAstTranslator<?> translator, Expression arg)

Inherited from org.hibernate.query.sqm.function.AbstractSqmSelfRenderingFunctionDescriptor:
generateSqmAggregateFunctionExpressiongenerateSqmFunctionExpressiongenerateSqmOrderedSetAggregateFunctionExpressiongenerateSqmWindowFunctionExpressiongetFunctionKind

Constructor Detail

PostgreSQLMinMaxFunctionback to summary
public PostgreSQLMinMaxFunction(String name)

Method Detail

getArgumentListSignatureback to summary
public String getArgumentListSignature()

Overrides org.hibernate.query.sqm.function.AbstractSqmFunctionDescriptor.getArgumentListSignature.

Annotations
@Override
renderback to summary
public void render(SqlAppender sqlAppender, List<? extends SqlAstNode> sqlAstArguments, ReturnableType<?> returnType, SqlAstTranslator<?> walker)

Overrides org.hibernate.query.sqm.function.AbstractSqmSelfRenderingFunctionDescriptor.render.

Implements org.hibernate.query.sqm.function.FunctionRenderer.render.

Annotations
@Override
renderback to summary
public void render(SqlAppender sqlAppender, List<? extends SqlAstNode> sqlAstArguments, Predicate filter, ReturnableType<?> returnType, SqlAstTranslator<?> translator)

Overrides default org.hibernate.query.sqm.function.FunctionRenderer.render.

Annotations
@Override
renderArgumentback to summary
private String renderArgument(SqlAppender sqlAppender, SqlAstTranslator<?> translator, Expression arg)