org.archive.wayback.util.partition.size

Class HourPartitionSize

java.lang.Object

org.archive.wayback.util.partition.size.HourPartitionSize

All Implemented Interfaces:

PartitionSize

public class HourPartitionSize
extends Object
implements PartitionSize

PartitionSize which aligns on one Hour partitions

Author:

brad

Field Summary

Fields inherited from interface org.archive.wayback.util.partition.PartitionSize

DAY_IN_MONTH, DAY_IN_WEEK, DAY_IN_YEAR, DAY_NAME, HOUR_IN_DAY, HOUR_NAME, MONTH_NAME, MS_IN_DAY, MS_IN_HOUR, MS_IN_MONTH, MS_IN_SEC, MS_IN_TWO_MONTH, MS_IN_TWO_YEAR, MS_IN_WEEK, MS_IN_YEAR, SEC_IN_HOUR, TWO_MONTH_NAME, TWO_YEAR_NAME, WEEK_NAME, YEAR_NAME

Constructor Summary

Constructors

Constructor and Description
HourPartitionSize()

Method Summary

Modifier and Type	Method and Description
void	alignStart(Calendar in) Align the calendar argument to the start of the interval covered by this size.
Calendar	increment(Calendar start, int offset) Create a new Calendar object, aligned relative to the Calendar argument, either forward or backward some number of partitions.
long	intervalMS()
String	name()

Methods inherited from class java.lang.Object

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

Constructor Detail

HourPartitionSize

public HourPartitionSize()

Method Detail

name

public String name()

Specified by:

name in interface PartitionSize

Returns:

the name of this PartitionSize. Likely useful for localized lookup of human readable text from a properties file.

intervalMS

public long intervalMS()

Specified by:

intervalMS in interface PartitionSize

Returns:

the estimated number of milliseconds covered by this PartitionSize. Note that this is estimated because of different number of days in a month, leap days, leap seconds, etc.

alignStart

public void alignStart(Calendar in)

Description copied from interface: PartitionSize

Align the calendar argument to the start of the interval covered by this size. Calling this method on a DayPartitionSize will align the Calendar to the beginning of the Day in which the Calendar's Date object falls within.

Specified by:

alignStart in interface PartitionSize

Parameters:

in - Calendar object which has internal Date set

increment

public Calendar increment(Calendar start,
                          int offset)

Description copied from interface: PartitionSize

Create a new Calendar object, aligned relative to the Calendar argument, either forward or backward some number of partitions.

Specified by:

increment in interface PartitionSize

Parameters:

start - the returned Calendar will be aligned one day, week, month, etc. ahead or behind of this Calendar argument.

offset - the relative distance to move the returned calendar relative to the argument Calendar.

Returns:

a new Calendar aligned relative to the start Calendar.