Package org.hibernate.dialect.function.array

Class H2ArrayPositionsFunction

java.lang.Object

org.hibernate.query.sqm.function.AbstractSqmFunctionDescriptor

org.hibernate.query.sqm.function.AbstractSqmSelfRenderingFunctionDescriptor

org.hibernate.dialect.function.array.AbstractArrayPositionsFunction

org.hibernate.dialect.function.array.H2ArrayPositionsFunction

All Implemented Interfaces:

FunctionRenderer, FunctionRenderingSupport, SqmFunctionDescriptor

public class H2ArrayPositionsFunction
extends AbstractArrayPositionsFunction

H2 requires a very special emulation, because unnest is pretty much useless, due to https://github.com/h2database/h2database/issues/1815. This emulation uses array_get, array_length and system_range functions to roughly achieve the same.

Constructor Summary

Constructors

Constructor	Description
H2ArrayPositionsFunction(boolean list, int maximumArraySize, TypeConfiguration typeConfiguration)

Method Summary

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

Methods inherited from class org.hibernate.dialect.function.array.AbstractArrayPositionsFunction

getArgumentListSignature

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

H2ArrayPositionsFunction

public H2ArrayPositionsFunction(boolean list,
                                int maximumArraySize,
                                TypeConfiguration typeConfiguration)

Method Detail

render

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

Specified by:

render in interface FunctionRenderer

Specified by:

render in interface FunctionRenderingSupport

Overrides:

render in class AbstractSqmSelfRenderingFunctionDescriptor