Package org.apache.calcite.sql.fun

Class SqlJsonArrayAggAggFunction

java.lang.Object

org.apache.calcite.sql.SqlOperator

org.apache.calcite.sql.SqlFunction

org.apache.calcite.sql.SqlAggFunction

org.apache.calcite.sql.fun.SqlJsonArrayAggAggFunction

All Implemented Interfaces:

Context, Wrapper

public class SqlJsonArrayAggAggFunction
extends SqlAggFunction

The JSON_OBJECTAGG aggregate function.

Field Summary

Fields inherited from class org.apache.calcite.sql.SqlOperator

kind, MDX_PRECEDENCE, NL

Constructor Summary

Constructors

Constructor	Description
SqlJsonArrayAggAggFunction(SqlKind kind, SqlJsonConstructorNullClause nullClause)

Method Summary

Modifier and Type	Method	Description
SqlCall	createCall(@Nullable SqlLiteral functionQualifier, SqlParserPos pos, @Nullable SqlNode... operands)	Creates a call to this operator with an array of operands.
RelDataType	deriveType(SqlValidator validator, SqlValidatorScope scope, SqlCall call)	Derives the type of a call to this operator.
SqlJsonConstructorNullClause	getNullClause()
void	unparse(SqlWriter writer, SqlCall call, int leftPrec, int rightPrec)	Writes a SQL representation of a call to this operator to a writer, including parentheses if the operators on either side are of greater precedence.
SqlJsonArrayAggAggFunction	with(SqlJsonConstructorNullClause nullClause)

Methods inherited from class org.apache.calcite.sql.SqlAggFunction

allowsFilter, allowsNullTreatment, getDistinctOptionality, getParameterTypes, getReturnType, getRollup, isAggregator, isPercentile, isQuantifierAllowed, requiresGroupOrder, requiresOrder, requiresOver, unwrap, validateCall

Methods inherited from class org.apache.calcite.sql.SqlFunction

getFunctionType, getNameAsId, getParamNames, getParamTypes, getSqlIdentifier, getSyntax, validateQuantifier

Methods inherited from class org.apache.calcite.sql.SqlOperator

acceptCall, acceptCall, adjustType, allowsFraming, argumentMustBeScalar, checkOperandCount, checkOperandTypes, constructArgNameList, constructArgTypeList, constructOperandList, createCall, createCall, createCall, createCall, createCall, createCall, deriveOperandType, equals, getAllowedSignatures, getAllowedSignatures, getKind, getLeftPrec, getMonotonicity, getMonotonicity, getName, getOperandCountRange, getOperandTypeChecker, getOperandTypeInference, getReturnTypeInference, getRightPrec, getSignatureTemplate, getStrongPolicyInference, hashCode, inferReturnType, inferReturnType, isDeterministic, isDynamicFunction, isGroup, isGroupAuxiliary, isName, isSymmetrical, leftPrec, not, preValidateCall, requiresDecimalExpansion, reverse, rewriteCall, rightPrec, toString, unparseListClause, unparseListClause, validateOperands, validRexOperands

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface org.apache.calcite.schema.Wrapper

maybeUnwrap, unwrapOrThrow

Constructor Details

SqlJsonArrayAggAggFunction

public SqlJsonArrayAggAggFunction(SqlKind kind,
 SqlJsonConstructorNullClause nullClause)

Method Details

unparse

public void unparse(SqlWriter writer,
 SqlCall call,
 int leftPrec,
 int rightPrec)

Description copied from class: SqlOperator

Writes a SQL representation of a call to this operator to a writer, including parentheses if the operators on either side are of greater precedence.

The default implementation of this method delegates to SqlSyntax.unparse(org.apache.calcite.sql.SqlWriter, org.apache.calcite.sql.SqlOperator, org.apache.calcite.sql.SqlCall, int, int).

Overrides:

unparse in class SqlFunction

deriveType

public RelDataType deriveType(SqlValidator validator,
 SqlValidatorScope scope,
 SqlCall call)

Description copied from class: SqlOperator

Derives the type of a call to this operator.

This method is an intrinsic part of the validation process so, unlike SqlOperator.inferReturnType(org.apache.calcite.sql.SqlOperatorBinding), specific operators would not typically override this method.

Overrides:

deriveType in class SqlFunction

Parameters:

validator - Validator

scope - Scope of validation

call - Call to this operator

Returns:

Type of call

createCall

public SqlCall createCall(@Nullable SqlLiteral functionQualifier,
 SqlParserPos pos,
 @Nullable SqlNode... operands)

Description copied from class: SqlOperator

Creates a call to this operator with an array of operands.

The position of the resulting call is the union of the pos and the positions of all of the operands.

Overrides:

createCall in class SqlOperator

Parameters:

functionQualifier - Function qualifier (e.g. "DISTINCT"), or null

pos - Parser position of the identifier of the call

operands - Array of operands

with

public SqlJsonArrayAggAggFunction with(SqlJsonConstructorNullClause nullClause)

getNullClause

public SqlJsonConstructorNullClause getNullClause()