Package org.hibernate.dialect.function.array

Class DB2UnnestFunction

java.lang.Object

org.hibernate.query.sqm.function.AbstractSqmSetReturningFunctionDescriptor

org.hibernate.query.sqm.function.AbstractSqmSelfRenderingSetReturningFunctionDescriptor

org.hibernate.dialect.function.array.UnnestFunction

org.hibernate.dialect.function.array.DB2UnnestFunction

All Implemented Interfaces:

SetReturningFunctionRenderer, SqmSetReturningFunctionDescriptor

public class DB2UnnestFunction
extends UnnestFunction

DB2 unnest function. Unnesting JSON arrays requires more effort since DB2 doesn't support arrays in json_table(). See DB2JsonTableFunction for more details.

See Also:

• DB2JsonTableFunction

Constructor Summary

Constructors

Constructor	Description
DB2UnnestFunction(int maximumArraySize)

Method Summary

Modifier and Type	Method	Description
protected <T> SelfRenderingSqmSetReturningFunction<T>	generateSqmSetReturningFunctionExpression(List<? extends SqmTypedNode<?>> arguments, QueryEngine queryEngine)	Return an SQM node or subtree representing an invocation of this function with the given arguments.
protected void	renderJsonTable(SqlAppender sqlAppender, Expression array, BasicPluralType<?,?> pluralType, @Nullable SqlTypedMapping sqlTypedMapping, AnonymousTupleTableGroupProducer tupleType, String tableIdentifierVariable, SqlAstTranslator<?> walker)

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

getDdlType, render, renderJsonTableColumns, renderUnnest, renderXmlTable, renderXmlTableColumns

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

generateSqmExpression, getArgumentListSignature, getArgumentsValidator, getArgumentTypeResolver, getName, getSetReturningTypeResolver, 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.SetReturningFunctionRenderer

rendersIdentifierVariable

Constructor Details

DB2UnnestFunction

public DB2UnnestFunction(int maximumArraySize)

Method Details

generateSqmSetReturningFunctionExpression

protected <T>
SelfRenderingSqmSetReturningFunction<T> generateSqmSetReturningFunctionExpression(List<? extends SqmTypedNode<?>> arguments,
 QueryEngine queryEngine)

Description copied from class: AbstractSqmSetReturningFunctionDescriptor

Return an SQM node or subtree representing an invocation of this function with the given arguments. This method may be overridden in the case of function descriptors that wish to customize creation of the node.

Overrides:

generateSqmSetReturningFunctionExpression in class AbstractSqmSelfRenderingSetReturningFunctionDescriptor

Parameters:

arguments - the arguments of the function invocation

renderJsonTable

protected void renderJsonTable(SqlAppender sqlAppender,
 Expression array,
 BasicPluralType<?,?> pluralType,
 @Nullable SqlTypedMapping sqlTypedMapping,
 AnonymousTupleTableGroupProducer tupleType,
 String tableIdentifierVariable,
 SqlAstTranslator<?> walker)

Overrides:

renderJsonTable in class UnnestFunction