org.apache.calcite.sql.validate

Class DelegatingSqlValidatorCatalogReader

java.lang.Object

org.apache.calcite.sql.validate.DelegatingSqlValidatorCatalogReader

All Implemented Interfaces:

SqlValidatorCatalogReader

public abstract class DelegatingSqlValidatorCatalogReader
extends Object
implements SqlValidatorCatalogReader

Implementation of SqlValidatorCatalogReader that passes all calls to a parent catalog reader.

Field Summary

Fields

Modifier and Type	Field and Description
protected SqlValidatorCatalogReader	catalogReader

Constructor Summary

Constructors

Constructor and Description
DelegatingSqlValidatorCatalogReader(SqlValidatorCatalogReader catalogReader) Creates a DelegatingSqlValidatorCatalogReader.

Method Summary

Methods

Modifier and Type	Method and Description
List<SqlMoniker>	getAllSchemaObjectNames(List<String> names) Given fully qualified schema name, returns schema object names as specified.
RelDataType	getNamedType(SqlIdentifier typeName) Finds a user-defined type with the given name, possibly qualified.
List<String>	getSchemaName() Returns the name of the current schema.
SqlValidatorTable	getTable(List<String> names) Finds a table with the given name, possibly qualified.

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.calcite.sql.validate.SqlValidatorCatalogReader

createTypeFromProjection, field, fieldOrdinal, match, matches

Field Detail

catalogReader

protected final SqlValidatorCatalogReader catalogReader

Constructor Detail

DelegatingSqlValidatorCatalogReader

public DelegatingSqlValidatorCatalogReader(SqlValidatorCatalogReader catalogReader)

Creates a DelegatingSqlValidatorCatalogReader.

Parameters:

catalogReader - Parent catalog reader

Method Detail

getTable

public SqlValidatorTable getTable(List<String> names)

Description copied from interface: SqlValidatorCatalogReader

Finds a table with the given name, possibly qualified.

Specified by:

getTable in interface SqlValidatorCatalogReader

Parameters:

names - Qualified name of table

Returns:

named table, or null if not found

getNamedType

public RelDataType getNamedType(SqlIdentifier typeName)

Description copied from interface: SqlValidatorCatalogReader

Finds a user-defined type with the given name, possibly qualified.

NOTE jvs 12-Feb-2005: the reason this method is defined here instead of on RelDataTypeFactory is that it has to take into account context-dependent information such as SQL schema path, whereas a type factory is context-independent.

Specified by:

getNamedType in interface SqlValidatorCatalogReader

Parameters:

typeName - Name of type

Returns:

named type, or null if not found

getAllSchemaObjectNames

public List<SqlMoniker> getAllSchemaObjectNames(List<String> names)

Description copied from interface: SqlValidatorCatalogReader

Given fully qualified schema name, returns schema object names as specified. They can be schema, table, function, view. When names array is empty, the contents of root schema should be returned.

Specified by:

getAllSchemaObjectNames in interface SqlValidatorCatalogReader

Parameters:

names - the array contains fully qualified schema name or empty list for root schema

Returns:

the list of all object (schema, table, function, view) names under the above criteria

getSchemaName

public List<String> getSchemaName()

Description copied from interface: SqlValidatorCatalogReader

Returns the name of the current schema.

Specified by:

getSchemaName in interface SqlValidatorCatalogReader

Returns:

name of the current schema