org.apache.derby.impl.sql
Class CursorInfo

java.lang.Object
  extended byorg.apache.derby.impl.sql.CursorInfo
All Implemented Interfaces:
java.io.Externalizable, Formatable, java.io.Serializable, TypedFormat

public class CursorInfo
extends java.lang.Object
implements Formatable

A basic holder for information about cursors for execution.

Author:
jamie
See Also:
Serialized Form

Field Summary
(package private)  ResultColumnDescriptor[] targetColumns
           
(package private)  ExecCursorTableReference targetTable
          This class implements Formatable.
(package private)  java.lang.String[] updateColumns
           
(package private)  int updateMode
           
 
Constructor Summary
CursorInfo()
          Niladic constructor for Formatable
CursorInfo(int updateMode, ExecCursorTableReference targetTable, ResultColumnDescriptor[] targetColumns, java.lang.String[] updateColumns)
           
 
Method Summary
 int getTypeFormatId()
          Get the formatID which corresponds to this class.
 void readExternal(java.io.ObjectInput in)
          Read this object from a stream of stored objects.
 java.lang.String toString()
           
 void writeExternal(java.io.ObjectOutput out)
          Write this object out
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait
 

Field Detail

targetTable

ExecCursorTableReference targetTable
This class implements Formatable. That means that it can write itself to and from a formatted stream. If you add more fields to this class, make sure that you also write/read them with the writeExternal()/readExternal() methods. If, inbetween releases, you add more fields to this class, then you should bump the version number emitted by the getTypeFormatId() method.


targetColumns

ResultColumnDescriptor[] targetColumns

updateColumns

java.lang.String[] updateColumns

updateMode

int updateMode
Constructor Detail

CursorInfo

public CursorInfo()
Niladic constructor for Formatable


CursorInfo

public CursorInfo(int updateMode,
                  ExecCursorTableReference targetTable,
                  ResultColumnDescriptor[] targetColumns,
                  java.lang.String[] updateColumns)
Method Detail

writeExternal

public void writeExternal(java.io.ObjectOutput out)
                   throws java.io.IOException
Write this object out

Specified by:
writeExternal in interface java.io.Externalizable
Parameters:
out - write bytes here
Throws:
java.io.IOException - thrown on error

readExternal

public void readExternal(java.io.ObjectInput in)
                  throws java.io.IOException,
                         java.lang.ClassNotFoundException
Read this object from a stream of stored objects.

Specified by:
readExternal in interface java.io.Externalizable
Parameters:
in - read this.
Throws:
java.io.IOException - thrown on error
java.lang.ClassNotFoundException - thrown on error

getTypeFormatId

public int getTypeFormatId()
Get the formatID which corresponds to this class.

Specified by:
getTypeFormatId in interface TypedFormat
Returns:
the formatID of this class

toString

public java.lang.String toString()

Built on Tue 2006-10-10 19:23:47+0200, from revision exported

Apache Derby V10.1 Engine Documentation - Copyright © 1997,2005 The Apache Software Foundation or its licensors, as applicable.