ostore.read
Class NumberPredicate

java.lang.Object
  |
  +--ostore.read.NumberPredicate

All Implemented Interfaces:

QuickSerializable, VersionPredicate

public class NumberPredicate

extends Object

implements VersionPredicate

A VersionPredicate that requires version whose sequence number lies in a specified range.

Version:

$Id: NumberPredicate.java,v 1.16 2002/07/29 18:48:53 geels Exp $

Author:

Dennis Geels

Constructor Summary

NumberPredicate(InputBuffer buffer)
Constructs a NumberPredicate from its serialized form.

NumberPredicate(long number)
Constructs a new NumberPredicate that requires a specific version.

NumberPredicate(long low, long high)
Constructs a new NumberPredicate that requires a sequence number between low and high, inclusive.

Method Summary

long	get_high() Returns the highest accaptable sequence number;
long	get_low() Returns the lowest accaptable sequence number;
void	serialize(OutputBuffer buffer) Add the object to the buffer.
String	toString() Returns a human-readable representation of this predicate.

Methods inherited from class java.lang.Object

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

Constructor Detail

NumberPredicate

public NumberPredicate(long low,
                       long high)

Constructs a new NumberPredicate that requires a sequence number between low and high, inclusive. Set low=0 or high=Long.MAX_VALUE for open-ended predicates.

Parameters:

low - The lowest acceptable sequence number.

high - The highest acceptable sequence number.

NumberPredicate

public NumberPredicate(long number)

Constructs a new NumberPredicate that requires a specific version.

Parameters:

number - The only acceptable sequence number.

NumberPredicate

public NumberPredicate(InputBuffer buffer)

Constructs a NumberPredicate from its serialized form.

Method Detail

get_low

public long get_low()

Returns the lowest accaptable sequence number;

get_high

public long get_high()

Returns the highest accaptable sequence number;

serialize

public void serialize(OutputBuffer buffer)

Description copied from interface: QuickSerializable

Add the object to the buffer.

Specified by:

serialize in interface QuickSerializable

Parameters:

buffer - the output buffer to add the object to

toString

public String toString()

Returns a human-readable representation of this predicate.

Overrides:

toString in class Object