org.apache.calcite.prepare

Class PlannerImpl.ViewExpanderImpl

java.lang.Object

org.apache.calcite.prepare.PlannerImpl.ViewExpanderImpl

All Implemented Interfaces:

RelOptTable.ViewExpander

Enclosing class:

PlannerImpl

public class PlannerImpl.ViewExpanderImpl
extends Object
implements RelOptTable.ViewExpander

Implements RelOptTable.ViewExpander interface for Planner.

Constructor Summary

Constructors

Constructor and Description
ViewExpanderImpl()

Method Summary

Modifier and Type	Method and Description
RelRoot	expandView(RelDataType rowType, String queryString, List<String> schemaPath, List<String> viewPath) Returns a relational expression that is to be substituted for an access to a SQL view.

Methods inherited from class java.lang.Object

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

Constructor Detail

ViewExpanderImpl

public ViewExpanderImpl()

Method Detail

expandView

public RelRoot expandView(RelDataType rowType,
                          String queryString,
                          List<String> schemaPath,
                          List<String> viewPath)

Description copied from interface: RelOptTable.ViewExpander

Returns a relational expression that is to be substituted for an access to a SQL view.

Specified by:

expandView in interface RelOptTable.ViewExpander

Parameters:

rowType - Row type of the view

queryString - Body of the view

schemaPath - Path of a schema wherein to find referenced tables

viewPath - Path of the view, ending with its name; may be null

Returns:

Relational expression