ostore.client
Class OSRead

java.lang.Object
  |
  +--ostore.client.OSRequest
        |
        +--ostore.client.OSRead

All Implemented Interfaces:

QueueElementIF, QuickSerializable

public class OSRead

extends OSRequest

The OSRead object is a request for reading objects....

Version:

$Id: OSRead.java,v 1.27 2002/12/19 22:11:34 eaton Exp $

Author:

Patrick R. Eaton

Field Summary

Fields inherited from class ostore.client.OSRequest

app_id

Constructor Summary

OSRead(InputBuffer buffer)

OSRead(OSAppId app_id, SecureHash target, OSVersionPredicate ver_pred, Selection selection)
Creates a new OSRead request.

OSRead(OSAppId app_id, SecureHash principal, QSPrivateKey principal_skey, SecureHash target, OSVersionPredicate ver_pred, Selection selection)
Creates a new OSRead request.

Method Summary

SecureHash	getAguid()
SecureHash	getPrincipal() Return the hash of the principal that created the read request.
Selection	getSelection()
SecureHash	getTarget()
OSVersionPredicate	getVersionPredicate()
void	serialize(OutputBuffer buffer) Add the object to the buffer.
void	setOnNodeFlag() NOT FOR GENERAL USE
String	toString()

Methods inherited from class ostore.client.OSRequest

clone, getAppId, getDispatchTime, getSeqNum, getUserTag, setUserTag

Methods inherited from class java.lang.Object

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

Constructor Detail

OSRead

public OSRead(OSAppId app_id,
              SecureHash target,
              OSVersionPredicate ver_pred,
              Selection selection)

Creates a new OSRead request.

Parameters:

app_id - the OSAppId to identify the requesting application

target - the aguid of the object from which to read

ver_pred - the version predicate to specify version constraints

selection - the selection representing the data to be read from the object

OSRead

public OSRead(OSAppId app_id,
              SecureHash principal,
              QSPrivateKey principal_skey,
              SecureHash target,
              OSVersionPredicate ver_pred,
              Selection selection)

Creates a new OSRead request.

Parameters:

app_id - the OSAppId to identify the requesting application

principal - the secure hash of the principal's public key

principal_skey - the principal's private key

target - the aguid of the object from which to read

ver_pred - the version predicate to specify version constraints

selection - the selection representing the data to be read from the object

OSRead

public OSRead(InputBuffer buffer)
       throws QSException

Method Detail

serialize

public void serialize(OutputBuffer buffer)

Description copied from interface: QuickSerializable

Add the object to the buffer.

Specified by:

serialize in interface QuickSerializable

Overrides:

serialize in class OSRequest

Parameters:

buffer - the output buffer to add the object to

getPrincipal

public SecureHash getPrincipal()

Return the hash of the principal that created the read request.

Returns:

the hash of the principal that created the read request.

getAguid

public SecureHash getAguid()

getTarget

public SecureHash getTarget()

getSelection

public Selection getSelection()

getVersionPredicate

public OSVersionPredicate getVersionPredicate()

setOnNodeFlag

public void setOnNodeFlag()

NOT FOR GENERAL USE

toString

public String toString()

Overrides:

toString in class Object