simpledb.remote
Class RemoteResultSetImpl

java.lang.Object
  java.rmi.server.RemoteObject
      java.rmi.server.RemoteServer
          java.rmi.server.UnicastRemoteObject
              simpledb.remote.RemoteResultSetImpl

All Implemented Interfaces:

java.io.Serializable, java.rmi.Remote, RemoteResultSet

 class RemoteResultSetImpl
extends java.rmi.server.UnicastRemoteObject
implements RemoteResultSet

The RMI server-side implementation of RemoteResultSet.

Author:

Edward Sciore

Field Summary

Fields inherited from class java.rmi.server.RemoteObject

ref

Constructor Summary

RemoteResultSetImpl(Plan plan, RemoteConnectionImpl rconn)
Creates a RemoteResultSet object.

Method Summary

void	close() Closes the result set by closing its scan.
int	getInt(java.lang.String fldname) Returns the integer value of the specified field, by returning the corresponding value on the saved scan.
RemoteMetaData	getMetaData() Returns the result set's metadata, by passing its schema into the RemoteMetaData constructor.
java.lang.String	getString(java.lang.String fldname) Returns the integer value of the specified field, by returning the corresponding value on the saved scan.
boolean	next() Moves to the next record in the result set, by moving to the next record in the saved scan.

Methods inherited from class java.rmi.server.UnicastRemoteObject

clone, exportObject, exportObject, exportObject, unexportObject

Methods inherited from class java.rmi.server.RemoteServer

getClientHost, getLog, setLog

Methods inherited from class java.rmi.server.RemoteObject

equals, getRef, hashCode, toString, toStub

Methods inherited from class java.lang.Object

finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

RemoteResultSetImpl

public RemoteResultSetImpl(Plan plan,
                           RemoteConnectionImpl rconn)
                    throws java.rmi.RemoteException

Creates a RemoteResultSet object. The specified plan is opened, and the scan is saved.

Parameters:

plan - the query plan

rconn - TODO

Throws:

java.rmi.RemoteException

Method Detail

next

public boolean next()
             throws java.rmi.RemoteException

Moves to the next record in the result set, by moving to the next record in the saved scan.

Specified by:

next in interface RemoteResultSet

Throws:

java.rmi.RemoteException

See Also:

RemoteResultSet.next()

getInt

public int getInt(java.lang.String fldname)
           throws java.rmi.RemoteException

Returns the integer value of the specified field, by returning the corresponding value on the saved scan.

Specified by:

getInt in interface RemoteResultSet

Throws:

java.rmi.RemoteException

See Also:

RemoteResultSet.getInt(java.lang.String)

getString

public java.lang.String getString(java.lang.String fldname)
                           throws java.rmi.RemoteException

Returns the integer value of the specified field, by returning the corresponding value on the saved scan.

Specified by:

getString in interface RemoteResultSet

Throws:

java.rmi.RemoteException

See Also:

RemoteResultSet.getInt(java.lang.String)

getMetaData

public RemoteMetaData getMetaData()
                           throws java.rmi.RemoteException

Returns the result set's metadata, by passing its schema into the RemoteMetaData constructor.

Specified by:

getMetaData in interface RemoteResultSet

Throws:

java.rmi.RemoteException

See Also:

RemoteResultSet.getMetaData()

close

public void close()
           throws java.rmi.RemoteException

Closes the result set by closing its scan.

Specified by:

close in interface RemoteResultSet

Throws:

java.rmi.RemoteException

See Also:

RemoteResultSet.close()