net.sf.farrago.query
Class FarragoQueryNamedColumnSet

java.lang.Object
  org.eigenbase.relopt.RelOptAbstractTable
      net.sf.farrago.query.FarragoQueryNamedColumnSet

All Implemented Interfaces:

FarragoMedColumnSet, FarragoQueryColumnSet, RelOptTable, SqlValidatorTable

Direct Known Subclasses:

FarragoView

public abstract class FarragoQueryNamedColumnSet
extends RelOptAbstractTable
implements FarragoQueryColumnSet

An abstract base for implementations of RelOptTable which access data described by Farrago's catalog.

Version:

$Id: //open/dev/farrago/src/net/sf/farrago/query/FarragoQueryNamedColumnSet.java#18 $

Author:

John V. Sichi

Field Summary

private SqlAccessType	allowedAccess Allowed access
private CwmNamedColumnSet	cwmColumnSet Catalog definition of column set.
private FarragoPreparingStmt	preparingStmt Refinement for RelOptAbstractTable.schema.

Fields inherited from class org.eigenbase.relopt.RelOptAbstractTable

name, rowType, schema

Constructor Summary

FarragoQueryNamedColumnSet(CwmNamedColumnSet cwmColumnSet, RelDataType rowType)
Creates a new FarragoQueryNamedColumnSet object.

Method Summary

SqlAccessType	getAllowedAccess() Returns the access type of the table
CwmNamedColumnSet	getCwmColumnSet()
SqlMonotonicity	getMonotonicity(String columnName) Returns whether a given column is monotonic.
FarragoPreparingStmt	getPreparingStmt()
String[]	getQualifiedName() Obtains an identifier for this table.
void	setCwmColumnSet(CwmNamedColumnSet cwmColumnSet) Sets the CwmNamedColumnSet corresponding to this column set.
void	setPreparingStmt(FarragoPreparingStmt stmt) Sets the FarragoPreparingStmt acting on this column set.

Methods inherited from class org.eigenbase.relopt.RelOptAbstractTable

getCollationList, getName, getRelOptSchema, getRowCount, getRowType, setRowType

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.eigenbase.relopt.RelOptTable

getCollationList, getRelOptSchema, getRowCount, getRowType, toRel

Methods inherited from interface org.eigenbase.sql.validate.SqlValidatorTable

getRowType

Field Detail

cwmColumnSet

private CwmNamedColumnSet cwmColumnSet

Catalog definition of column set.

preparingStmt

private FarragoPreparingStmt preparingStmt

Refinement for RelOptAbstractTable.schema.

allowedAccess

private SqlAccessType allowedAccess

Allowed access

Constructor Detail

FarragoQueryNamedColumnSet

FarragoQueryNamedColumnSet(CwmNamedColumnSet cwmColumnSet,
                           RelDataType rowType)

Creates a new FarragoQueryNamedColumnSet object.

Parameters:

cwmColumnSet - catalog definition for column set

rowType - type for rows stored in column set

Method Detail

getQualifiedName

public String[] getQualifiedName()

Description copied from interface: RelOptTable

Obtains an identifier for this table. The identifier must be unique with respect to the Connection producing this table.

Specified by:

getQualifiedName in interface RelOptTable

Specified by:

getQualifiedName in interface SqlValidatorTable

Overrides:

getQualifiedName in class RelOptAbstractTable

Returns:

qualified name

getMonotonicity

public SqlMonotonicity getMonotonicity(String columnName)

Description copied from interface: SqlValidatorTable

Returns whether a given column is monotonic.

Specified by:

getMonotonicity in interface SqlValidatorTable

getAllowedAccess

public SqlAccessType getAllowedAccess()

Description copied from interface: SqlValidatorTable

Returns the access type of the table

Specified by:

getAllowedAccess in interface SqlValidatorTable

getPreparingStmt

public FarragoPreparingStmt getPreparingStmt()

Specified by:

getPreparingStmt in interface FarragoQueryColumnSet

Returns:

the FarragoPreparingStmt acting on this column set

setPreparingStmt

public void setPreparingStmt(FarragoPreparingStmt stmt)

Description copied from interface: FarragoQueryColumnSet

Sets the FarragoPreparingStmt acting on this column set.

Specified by:

setPreparingStmt in interface FarragoQueryColumnSet

Parameters:

stmt - the FarragoPreparingStmt to set

setCwmColumnSet

public void setCwmColumnSet(CwmNamedColumnSet cwmColumnSet)

Description copied from interface: FarragoQueryColumnSet

Sets the CwmNamedColumnSet corresponding to this column set.

Specified by:

setCwmColumnSet in interface FarragoQueryColumnSet

Parameters:

cwmColumnSet - the CwmNamedColumnSet, or null if this column set is not defined in the catalog

getCwmColumnSet

public CwmNamedColumnSet getCwmColumnSet()

Specified by:

getCwmColumnSet in interface FarragoQueryColumnSet

Returns:

the CwmNamedColumnSet corresponding to this column set