Package org.hibernate.dialect.function

Class CaseLeastGreatestEmulation

java.lang.Object

org.hibernate.query.sqm.function.AbstractSqmFunctionDescriptor

org.hibernate.query.sqm.function.AbstractSqmSelfRenderingFunctionDescriptor

org.hibernate.dialect.function.CaseLeastGreatestEmulation

All Implemented Interfaces:

FunctionRenderer, FunctionRenderingSupport, SqmFunctionDescriptor

public class CaseLeastGreatestEmulation
extends AbstractSqmSelfRenderingFunctionDescriptor

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

Constructor Summary

Constructors

Constructor	Description
CaseLeastGreatestEmulation(boolean least)

Method Summary

Modifier and Type	Method	Description
String	getArgumentListSignature()
void	render(SqlAppender sqlAppender, List<? extends SqlAstNode> arguments, ReturnableType<?> returnType, SqlAstTranslator<?> walker)

Methods inherited from class org.hibernate.query.sqm.function.AbstractSqmSelfRenderingFunctionDescriptor

generateSqmAggregateFunctionExpression, generateSqmFunctionExpression, generateSqmOrderedSetAggregateFunctionExpression, generateSqmWindowFunctionExpression, getFunctionKind

Methods inherited from class org.hibernate.query.sqm.function.AbstractSqmFunctionDescriptor

generateAggregateSqmExpression, generateOrderedSetAggregateSqmExpression, generateSqmExpression, generateWindowSqmExpression, getArgumentsValidator, getArgumentTypeResolver, getName, getReturnSignature, getReturnTypeResolver, getSignature

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.hibernate.query.sqm.function.FunctionRenderer

render, render, render, render

Methods inherited from interface org.hibernate.query.sqm.function.FunctionRenderingSupport

render, render, render

Methods inherited from interface org.hibernate.query.sqm.function.SqmFunctionDescriptor

alwaysIncludesParentheses, generateSqmExpression, generateSqmExpression

Constructor Detail

CaseLeastGreatestEmulation

public CaseLeastGreatestEmulation(boolean least)

Method Detail

render

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

Specified by:

render in interface FunctionRenderer

Specified by:

render in interface FunctionRenderingSupport

Overrides:

render in class AbstractSqmSelfRenderingFunctionDescriptor

getArgumentListSignature

public String getArgumentListSignature()

Overrides:

getArgumentListSignature in class AbstractSqmFunctionDescriptor