org.apache.calcite.sql

Class SqlSpecialOperator

java.lang.Object

org.apache.calcite.sql.SqlOperator

org.apache.calcite.sql.SqlSpecialOperator

Direct Known Subclasses:

SqlAsOperator, SqlColumnListConstructor, SqlCursorConstructor, SqlDatetimeSubtractionOperator, SqlFunctionalOperator, SqlInfixOperator, SqlInternalOperator, SqlLikeOperator, SqlLiteralChainOperator, SqlMultisetQueryConstructor, SqlMultisetValueConstructor, SqlOverlapsOperator, SqlRowOperator, SqlSequenceValueOperator, SqlThrowOperator, SqlValuesOperator

public class SqlSpecialOperator
extends SqlOperator

Generic operator for nodes with special syntax.

Field Summary

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

kind, MDX_PRECEDENCE, NL

Constructor Summary

Constructors

Constructor and Description
SqlSpecialOperator(String name, SqlKind kind)
SqlSpecialOperator(String name, SqlKind kind, int prec)
SqlSpecialOperator(String name, SqlKind kind, int prec, boolean leftAssoc, SqlReturnTypeInference returnTypeInference, SqlOperandTypeInference operandTypeInference, SqlOperandTypeChecker operandTypeChecker)

Method Summary

Methods

Modifier and Type	Method and Description
SqlSyntax	getSyntax() Returns the syntactic type of this operator, never null.
int	reduceExpr(int ordinal, List<Object> list) Reduces a list of operators and arguments according to the rules of precedence and associativity.

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

acceptCall, acceptCall, adjustType, allowsFraming, argumentMustBeScalar, checkOperandCount, checkOperandTypes, createCall, createCall, createCall, createCall, deriveType, equals, getAllowedSignatures, getAllowedSignatures, getKind, getLeftPrec, getMonotonicity, getName, getOperandCountRange, getOperandTypeChecker, getOperandTypeInference, getReturnTypeInference, getRightPrec, getSignatureTemplate, hashCode, inferReturnType, inferReturnType, isAggregator, isDeterministic, isDynamicFunction, isName, leftPrec, preValidateCall, requiresDecimalExpansion, requiresOrder, rewriteCall, rightPrec, toString, unparse, unparseListClause, unparseListClause, validateCall, validateOperands, validRexOperands

Methods inherited from class java.lang.Object

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

Constructor Detail

SqlSpecialOperator

public SqlSpecialOperator(String name,
                  SqlKind kind)

SqlSpecialOperator

public SqlSpecialOperator(String name,
                  SqlKind kind,
                  int prec)

SqlSpecialOperator

public SqlSpecialOperator(String name,
                  SqlKind kind,
                  int prec,
                  boolean leftAssoc,
                  SqlReturnTypeInference returnTypeInference,
                  SqlOperandTypeInference operandTypeInference,
                  SqlOperandTypeChecker operandTypeChecker)

Method Detail

getSyntax

public SqlSyntax getSyntax()

Description copied from class: SqlOperator

Returns the syntactic type of this operator, never null.

Specified by:

getSyntax in class SqlOperator

reduceExpr

public int reduceExpr(int ordinal,
             List<Object> list)

Reduces a list of operators and arguments according to the rules of precedence and associativity. Returns the ordinal of the node which replaced the expression.

The default implementation throws UnsupportedOperationException.

Parameters:

ordinal - indicating the ordinal of the current operator in the list on which a possible reduction can be made

list - List of alternating SqlParserUtil.ToTreeListItem and SqlNode

Returns:

ordinal of the node which replaced the expression