org.apache.calcite.sql.validate

Class SqlValidatorImpl.Expander

java.lang.Object

org.apache.calcite.sql.util.SqlBasicVisitor<SqlNode>

org.apache.calcite.sql.util.SqlShuttle

org.apache.calcite.sql.validate.SqlScopedShuttle

org.apache.calcite.sql.validate.SqlValidatorImpl.Expander

All Implemented Interfaces:

SqlVisitor<SqlNode>

Direct Known Subclasses:

SqlValidatorImpl.ExtendedExpander

Enclosing class:

SqlValidatorImpl

private static class SqlValidatorImpl.Expander
extends SqlScopedShuttle

Converts an expression into canonical form by fully-qualifying any identifiers.

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.calcite.sql.util.SqlShuttle

SqlShuttle.CallCopyingArgHandler

Nested classes/interfaces inherited from class org.apache.calcite.sql.util.SqlBasicVisitor

SqlBasicVisitor.ArgHandler<R>, SqlBasicVisitor.ArgHandlerImpl<R>

Field Summary

Fields

Modifier and Type	Field and Description
protected SqlValidatorImpl	validator

Constructor Summary

Constructors

Constructor and Description
Expander(SqlValidatorImpl validator, SqlValidatorScope scope)

Method Summary

Modifier and Type	Method and Description
SqlNode	visit(SqlIdentifier id) Visits an identifier.
protected SqlNode	visitScoped(SqlCall call) Visits an operator call.

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

getScope, visit

Methods inherited from class org.apache.calcite.sql.util.SqlShuttle

visit, visit, visit, visit, visit

Methods inherited from class java.lang.Object

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

Field Detail

validator

protected final SqlValidatorImpl validator

Constructor Detail

Expander

Expander(SqlValidatorImpl validator,
         SqlValidatorScope scope)

Method Detail

visit

public SqlNode visit(SqlIdentifier id)

Description copied from interface: SqlVisitor

Visits an identifier.

Specified by:

visit in interface SqlVisitor<SqlNode>

Overrides:

visit in class SqlShuttle

Parameters:

id - identifier

See Also:

SqlIdentifier.accept(SqlVisitor)

visitScoped

protected SqlNode visitScoped(SqlCall call)

Description copied from class: SqlScopedShuttle

Visits an operator call. If the call has entered a new scope, the base class will have already modified the scope.

Overrides:

visitScoped in class SqlScopedShuttle