Package org.apache.calcite.sql.fun

Class SqlLibraryOperatorTableFactory

java.lang.Object

org.apache.calcite.sql.fun.SqlLibraryOperatorTableFactory

public class SqlLibraryOperatorTableFactory
extends Object

Factory that creates operator tables that consist of functions and operators for particular named libraries. For example, the following code will return an operator table that contains operators for both Oracle and MySQL:

SqlOperatorTable opTab =
     SqlLibraryOperatorTableFactory.INSTANCE.getOperatorTable(
         EnumSet.of(SqlLibrary.ORACLE, SqlLibrary.MYSQL))

To define a new library, add a value to enum SqlLibrary.

To add functions to a library, add the LibraryOperator annotation to fields that of type SqlOperator, and the library name to its LibraryOperator.libraries() field.

Field Summary

Fields

Modifier and Type	Field	Description
static final SqlLibraryOperatorTableFactory	INSTANCE	The singleton instance.

Method Summary

Modifier and Type	Method	Description
SqlOperatorTable	getOperatorTable(Iterable<SqlLibrary> librarySet)	Returns a SQL operator table that contains operators in the given set of libraries.
SqlOperatorTable	getOperatorTable(Iterable<SqlLibrary> librarySet, boolean includeAll)	Returns a SQL operator table that contains operators in the given set of libraries, optionally inheriting in operators in SqlLibrary.ALL.
SqlOperatorTable	getOperatorTable(SqlLibrary... libraries)	Returns a SQL operator table that contains operators in the given library or libraries.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Details

INSTANCE

public static final SqlLibraryOperatorTableFactory INSTANCE

The singleton instance.

Method Details

getOperatorTable

public SqlOperatorTable getOperatorTable(SqlLibrary... libraries)

Returns a SQL operator table that contains operators in the given library or libraries.

getOperatorTable

public SqlOperatorTable getOperatorTable(Iterable<SqlLibrary> librarySet)

Returns a SQL operator table that contains operators in the given set of libraries.

getOperatorTable

public SqlOperatorTable getOperatorTable(Iterable<SqlLibrary> librarySet,
 boolean includeAll)

Returns a SQL operator table that contains operators in the given set of libraries, optionally inheriting in operators in SqlLibrary.ALL.