org.eigenbase.sql.validate
Class TableConstructorNamespace

java.lang.Object
  org.eigenbase.sql.validate.AbstractNamespace
      org.eigenbase.sql.validate.TableConstructorNamespace

All Implemented Interfaces:

SqlValidatorNamespace

public class TableConstructorNamespace
extends AbstractNamespace

Namespace for a table constructor VALUES (expr, expr, ...).

Since:

Mar 25, 2003

Version:

$Id: //open/dev/farrago/src/org/eigenbase/sql/validate/TableConstructorNamespace.java#9 $

Author:

jhyde

Field Summary

private SqlValidatorScope	scope
private SqlCall	values

Fields inherited from class org.eigenbase.sql.validate.AbstractNamespace

enclosingNode, rowType, validator

Constructor Summary

TableConstructorNamespace(SqlValidatorImpl validator, SqlCall values, SqlValidatorScope scope, SqlNode enclosingNode)
Creates a TableConstructorNamespace.

Method Summary

SqlNode	getNode() Returns the parse tree node at the root of this namespace.
SqlValidatorScope	getScope() Returns the scope.
protected RelDataType	validateImpl() Validates this scope and returns the type of the records it returns.

Methods inherited from class org.eigenbase.sql.validate.AbstractNamespace

fieldExists, getEnclosingNode, getMonotonicExprs, getMonotonicity, getRowType, getRowTypeSansSystemColumns, getTable, getValidator, isWrapperFor, lookupChild, makeNullable, setRowType, translate, unwrap, validate

Methods inherited from class java.lang.Object

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

Field Detail

values

private final SqlCall values

scope

private final SqlValidatorScope scope

Constructor Detail

TableConstructorNamespace

TableConstructorNamespace(SqlValidatorImpl validator,
                          SqlCall values,
                          SqlValidatorScope scope,
                          SqlNode enclosingNode)

Creates a TableConstructorNamespace.

Parameters:

validator - Validator

values - VALUES parse tree node

scope - Scope

enclosingNode - Enclosing node

Method Detail

validateImpl

protected RelDataType validateImpl()

Description copied from class: AbstractNamespace

Validates this scope and returns the type of the records it returns. External users should call AbstractNamespace.validate(), which uses the AbstractNamespace.status field to protect against cycles.

Specified by:

validateImpl in class AbstractNamespace

Returns:

record data type, never null

getNode

public SqlNode getNode()

Description copied from interface: SqlValidatorNamespace

Returns the parse tree node at the root of this namespace.

Returns:

parse tree node

getScope

public SqlValidatorScope getScope()

Returns the scope.

Returns:

scope