org.apache.hadoop.hbase.io

Class TimeRange

java.lang.Object

org.apache.hadoop.hbase.io.TimeRange

@InterfaceAudience.Public
public class TimeRange
extends Object

Represents an interval of version timestamps. Presumes timestamps between INITIAL_MIN_TIMESTAMP and INITIAL_MAX_TIMESTAMP only. Gets freaked out if passed a timestamp that is < INITIAL_MIN_TIMESTAMP,

Evaluated according to minStamp <= timestamp < maxStamp or [minStamp,maxStamp) in interval notation.

Can be returned and read by clients. Should not be directly created by clients. Thus, all constructors are purposely @InterfaceAudience.Private.

Immutable. Thread-safe.

Field Summary

Fields

Modifier and Type	Field and Description
private static TimeRange	ALL_TIME
private boolean	allTime
static long	INITIAL_MAX_TIMESTAMP
static long	INITIAL_MIN_TIMESTAMP
private long	maxStamp
private long	minStamp

Constructor Summary

Constructors

Constructor and Description
TimeRange() Deprecated. This is made @InterfaceAudience.Private in the 2.0 line and above and may be changed to private or removed in 3.0.
TimeRange(byte[] minStamp) Deprecated. This is made @InterfaceAudience.Private in the 2.0 line and above and may be changed to private or removed in 3.0.
TimeRange(byte[] minStamp, byte[] maxStamp) Deprecated. This is made @InterfaceAudience.Private in the 2.0 line and above and may be changed to private or removed in 3.0.
TimeRange(long minStamp) Deprecated. This is made @InterfaceAudience.Private in the 2.0 line and above and may be changed to private or removed in 3.0.
TimeRange(long minStamp, long maxStamp) Deprecated. This is made @InterfaceAudience.Private in the 2.0 line and above and may be changed to private or removed in 3.0.

Method Summary

Modifier and Type	Method and Description
static TimeRange	allTime()
static TimeRange	at(long ts)
static TimeRange	between(long minStamp, long maxStamp) Represents the time interval [minStamp, maxStamp)
private static void	check(long minStamp, long maxStamp)
int	compare(long timestamp) Compare the timestamp to timerange.
static TimeRange	from(long minStamp) Represents the time interval [minStamp, Long.MAX_VALUE)
long	getMax()
long	getMin()
boolean	includesTimeRange(TimeRange tr) Check if the range has any overlap with TimeRange
boolean	isAllTime() Check if it is for all time
private static boolean	isAllTime(long minStamp, long maxStamp)
String	toString()
static TimeRange	until(long maxStamp) Represents the time interval [0, maxStamp)
boolean	withinOrAfterTimeRange(long timestamp) Check if the specified timestamp is within or after this TimeRange.
boolean	withinTimeRange(byte[] bytes, int offset) Deprecated. This is made @InterfaceAudience.Private in the 2.0 line and above and may be changed to private or removed in 3.0. Use withinTimeRange(long) instead
boolean	withinTimeRange(long timestamp) Check if the specified timestamp is within this TimeRange.

Methods inherited from class java.lang.Object

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

Field Detail

INITIAL_MIN_TIMESTAMP

public static final long INITIAL_MIN_TIMESTAMP

See Also:

Constant Field Values

INITIAL_MAX_TIMESTAMP

public static final long INITIAL_MAX_TIMESTAMP

See Also:

Constant Field Values

ALL_TIME

private static final TimeRange ALL_TIME

minStamp

private final long minStamp

maxStamp

private final long maxStamp

allTime

private final boolean allTime

Constructor Detail

TimeRange

@Deprecated
 @InterfaceAudience.Private
public TimeRange()

Deprecated. This is made @InterfaceAudience.Private in the 2.0 line and above and may be changed to private or removed in 3.0.

Default constructor. Represents interval [0, Long.MAX_VALUE) (allTime)

TimeRange

@Deprecated
 @InterfaceAudience.Private
public TimeRange(long minStamp)

Deprecated. This is made @InterfaceAudience.Private in the 2.0 line and above and may be changed to private or removed in 3.0.

Represents interval [minStamp, Long.MAX_VALUE)

Parameters:

minStamp - the minimum timestamp value, inclusive

TimeRange

@Deprecated
 @InterfaceAudience.Private
public TimeRange(byte[] minStamp)

Deprecated. This is made @InterfaceAudience.Private in the 2.0 line and above and may be changed to private or removed in 3.0.

Represents interval [minStamp, Long.MAX_VALUE)

Parameters:

minStamp - the minimum timestamp value, inclusive

TimeRange

@Deprecated
 @InterfaceAudience.Private
public TimeRange(byte[] minStamp,
                                                         byte[] maxStamp)

Deprecated. This is made @InterfaceAudience.Private in the 2.0 line and above and may be changed to private or removed in 3.0.

Represents interval [minStamp, maxStamp)

Parameters:

minStamp - the minimum timestamp, inclusive

maxStamp - the maximum timestamp, exclusive

TimeRange

@Deprecated
 @InterfaceAudience.Private
public TimeRange(long minStamp,
                                                         long maxStamp)

Deprecated. This is made @InterfaceAudience.Private in the 2.0 line and above and may be changed to private or removed in 3.0.

Represents interval [minStamp, maxStamp)

Parameters:

minStamp - the minimum timestamp, inclusive

maxStamp - the maximum timestamp, exclusive

Throws:

IllegalArgumentException - if either <0,

Method Detail

allTime

public static TimeRange allTime()

at

public static TimeRange at(long ts)

from

public static TimeRange from(long minStamp)

Represents the time interval [minStamp, Long.MAX_VALUE)

Parameters:

minStamp - the minimum timestamp value, inclusive

until

public static TimeRange until(long maxStamp)

Represents the time interval [0, maxStamp)

Parameters:

maxStamp - the minimum timestamp value, exclusive

between

public static TimeRange between(long minStamp,
                                long maxStamp)

Represents the time interval [minStamp, maxStamp)

Parameters:

minStamp - the minimum timestamp, inclusive

maxStamp - the maximum timestamp, exclusive

isAllTime

private static boolean isAllTime(long minStamp,
                                 long maxStamp)

check

private static void check(long minStamp,
                          long maxStamp)

getMin

public long getMin()

Returns:

the smallest timestamp that should be considered

getMax

public long getMax()

Returns:

the biggest timestamp that should be considered

isAllTime

public boolean isAllTime()

Check if it is for all time

Returns:

true if it is for all time

withinTimeRange

@Deprecated
public boolean withinTimeRange(byte[] bytes,
                                           int offset)

Deprecated. This is made @InterfaceAudience.Private in the 2.0 line and above and may be changed to private or removed in 3.0. Use withinTimeRange(long) instead

Check if the specified timestamp is within this TimeRange.

Returns true if within interval [minStamp, maxStamp), false if not.

Parameters:

bytes - timestamp to check

offset - offset into the bytes

Returns:

true if within TimeRange, false if not

withinTimeRange

public boolean withinTimeRange(long timestamp)

Check if the specified timestamp is within this TimeRange.

Returns true if within interval [minStamp, maxStamp), false if not.

Parameters:

timestamp - timestamp to check

Returns:

true if within TimeRange, false if not

includesTimeRange

public boolean includesTimeRange(TimeRange tr)

Check if the range has any overlap with TimeRange

Parameters:

tr - TimeRange

Returns:

True if there is overlap, false otherwise

withinOrAfterTimeRange

public boolean withinOrAfterTimeRange(long timestamp)

Check if the specified timestamp is within or after this TimeRange.

Returns true if greater than minStamp, false if not.

Parameters:

timestamp - timestamp to check

Returns:

true if within or after TimeRange, false if not

compare

public int compare(long timestamp)

Compare the timestamp to timerange.

Returns:

-1 if timestamp is less than timerange, 0 if timestamp is within timerange, 1 if timestamp is greater than timerange

toString

public String toString()

Overrides:

toString in class Object