Top Description Fields Constructors Methods
org.hibernate.dialect.function

public Class CaseLeastGreatestEmulation

extends AbstractSqmSelfRenderingFunctionDescriptor
Class Inheritance
Imports
java.util.List, org.hibernate.query.ReturnableType, org.hibernate.query.sqm.function.AbstractSqmSelfRenderingFunctionDescriptor, org.hibernate.query.sqm.produce.function.ArgumentTypesValidator, .StandardArgumentsValidators, .StandardFunctionArgumentTypeResolvers, .StandardFunctionReturnTypeResolvers, org.hibernate.sql.ast.SqlAstTranslator, org.hibernate.sql.ast.spi.SqlAppender, org.hibernate.sql.ast.tree.SqlAstNode

Deprecated

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

Some databases don't have a function like least() or greatest(), and on those platforms we emulate the function using case.
Author
Christian Beikov

Field Summary

Modifier and TypeField and Description
private final String
operator

Constructor Summary

AccessConstructor and Description
public
CaseLeastGreatestEmulation(boolean least)

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> arguments, ReturnableType<?> returnType, SqlAstTranslator<?> walker)

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

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

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

Field Detail

operatorback to summary
private final String operator

Constructor Detail

CaseLeastGreatestEmulationback to summary
public CaseLeastGreatestEmulation(boolean least)

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> arguments, ReturnableType<?> returnType, SqlAstTranslator<?> walker)

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

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

Annotations
@Override