org.eigenbase.sql

Interface SqlOperatorTable

All Known Implementing Classes:

ChainedSqlOperatorTable, ListSqlOperatorTable, OptiqCatalogReader, ReflectiveSqlOperatorTable, SqlStdOperatorTable

public interface SqlOperatorTable

SqlOperatorTable defines a directory interface for enumerating and looking up SQL operators and functions.

Method Summary

Methods

Modifier and Type	Method and Description
List<SqlOperator>	getOperatorList() Retrieves a list of all functions and operators in this table.
void	lookupOperatorOverloads(SqlIdentifier opName, SqlFunctionCategory category, SqlSyntax syntax, List<SqlOperator> operatorList) Retrieves a list of operators with a given name and syntax.

Method Detail

lookupOperatorOverloads

void lookupOperatorOverloads(SqlIdentifier opName,
                           SqlFunctionCategory category,
                           SqlSyntax syntax,
                           List<SqlOperator> operatorList)

Retrieves a list of operators with a given name and syntax. For example, by passing SqlSyntax.Function, the returned list is narrowed to only matching SqlFunction objects.

Parameters:

opName - name of operator

category - function category to look up, or null for any matching operator

syntax - syntax type of operator

operatorList - mutable list to which to append matches

getOperatorList

List<SqlOperator> getOperatorList()

Retrieves a list of all functions and operators in this table. Used for automated testing.

Returns:

list of SqlOperator objects