org.apache.calcite.sql.validate

Class CatalogScope

java.lang.Object

org.apache.calcite.sql.validate.DelegatingScope

org.apache.calcite.sql.validate.CatalogScope

All Implemented Interfaces:

SqlValidatorScope

class CatalogScope
extends DelegatingScope

Implementation of SqlValidatorScope that can see all schemas in the current catalog.

Occurs near the root of the scope stack; its parent is typically EmptyScope.

Helps resolve schema.table.column column references, such as

select sales.emp.empno from sales.emp

Nested Class Summary

Nested classes/interfaces inherited from interface org.apache.calcite.sql.validate.SqlValidatorScope

SqlValidatorScope.EmptyPath, SqlValidatorScope.Path, SqlValidatorScope.Resolve, SqlValidatorScope.Resolved, SqlValidatorScope.ResolvedImpl, SqlValidatorScope.Step

Field Summary

Fields

Modifier and Type	Field and Description
(package private) com.google.common.collect.ImmutableList<String>	names Fully-qualified name of the catalog.
private Set<List<String>>	schemaNames

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

parent, validator

Constructor Summary

Constructors

Constructor and Description
CatalogScope(SqlValidatorScope parent, List<String> names)

Method Summary

Modifier and Type	Method and Description
SqlNode	getNode() Returns the root node of this scope.

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

addChild, addColumnNames, findAliases, findAllColumnNames, findQualifyingTableName, findQualifyingTableNames, fullyQualify, getMonotonicity, getOperandScope, getOrderList, getParent, getTableNamespace, getValidator, lookupWindow, nullifyType, resolve, resolveColumn, resolveInNamespace, resolveTable, validateExpr

Methods inherited from class java.lang.Object

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

Field Detail

names

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

Fully-qualified name of the catalog. Typically empty or ["CATALOG"].

schemaNames

private final Set<List<String>> schemaNames

Constructor Detail

CatalogScope

CatalogScope(SqlValidatorScope parent,
             List<String> names)

Method Detail

getNode

public SqlNode getNode()

Description copied from interface: SqlValidatorScope

Returns the root node of this scope. Never null.