org.apache.calcite.sql.validate

Class SchemaNamespace

java.lang.Object

org.apache.calcite.sql.validate.AbstractNamespace

org.apache.calcite.sql.validate.SchemaNamespace

All Implemented Interfaces:

SqlValidatorNamespace

class SchemaNamespace
extends AbstractNamespace

Namespace based on a schema.

The visible names are tables and sub-schemas.

Field Summary

Fields

Modifier and Type	Field and Description
private com.google.common.collect.ImmutableList<String>	names The path of this schema.

Fields inherited from class org.apache.calcite.sql.validate.AbstractNamespace

enclosingNode, rowType, type, validator

Constructor Summary

Constructors

Constructor and Description
SchemaNamespace(SqlValidatorImpl validator, com.google.common.collect.ImmutableList<String> names) Creates a SchemaNamespace.

Method Summary

Modifier and Type	Method and Description
SqlNode	getNode() Returns the parse tree node at the root of this namespace.
protected RelDataType	validateImpl(RelDataType targetRowType) Validates this scope and returns the type of the records it returns.

Methods inherited from class org.apache.calcite.sql.validate.AbstractNamespace

convertToStruct, fieldExists, getEnclosingNode, getMonotonicExprs, getMonotonicity, getRowType, getRowTypeSansSystemColumns, getTable, getType, getValidator, isWrapperFor, lookupChild, makeNullable, resolve, setType, supportsModality, toStruct, translate, unwrap, validate

Methods inherited from class java.lang.Object

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

Field Detail

names

private final com.google.common.collect.ImmutableList<String> names

The path of this schema.

Constructor Detail

SchemaNamespace

SchemaNamespace(SqlValidatorImpl validator,
                com.google.common.collect.ImmutableList<String> names)

Creates a SchemaNamespace.

Method Detail

validateImpl

protected RelDataType validateImpl(RelDataType targetRowType)

Description copied from class: AbstractNamespace

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

Specified by:

validateImpl in class AbstractNamespace

Parameters:

targetRowType - Desired row type, must not be null, may be the data type 'unknown'.

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; null for TableNamespace