HRegionLocation (Apache HBase 2.0.0-SNAPSHOT API)

java.lang.Object
+
- org.apache.hadoop.hbase.HRegionLocation
+

+
+
All Implemented Interfaces:
+
Comparable<HRegionLocation>
+
+
+
+
```
@InterfaceAudience.Public
+@InterfaceStability.Evolving
+public class HRegionLocation
+extends Object
+implements Comparable<HRegionLocation>
```
+
Data structure to hold HRegionInfo and the address for the hosting + HRegionServer. Immutable. Comparable, but we compare the 'location' only: + i.e. the hostname and port, and *not* the regioninfo. This means two + instances are the same if they refer to the same 'location' (the same + hostname and port), though they may be carrying different regions. + + On a big cluster, each client will have thousands of instances of this object, often + 100 000 of them if not million. It's important to keep the object size as small + as possible. + +
This interface has been marked InterfaceAudience.Public in 0.96 and 0.98.
+

+ +

Constructor Summary

+ + + + + + + + + + + +

Constructors
Constructor and Description
`HRegionLocation(HRegionInfo regionInfo, + ServerName serverName)`
`HRegionLocation(HRegionInfo regionInfo, + ServerName serverName, + long seqNum)`

+ +

+ + +

Method Summary

+ + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +

Methods
Modifier and Type	Method and Description
`int`	`compareTo(HRegionLocation o)`
`boolean`	`equals(Object o)`
`String`	`getHostname()`
`String`	`getHostnamePort()`
`int`	`getPort()`
`HRegionInfo`	`getRegionInfo()`
`long`	`getSeqNum()`
`ServerName`	`getServerName()`
`int`	`hashCode()`
`String`	`toString()`

+ + +
Methods inherited from class java.lang.Object
+clone, finalize, getClass, notify, notifyAll, wait, wait, wait

+ +
- + + +
  Constructor Detail
  + + + +
  - +
    HRegionLocation
    +
```
public HRegionLocation(HRegionInfo regionInfo,
+               ServerName serverName)
```
    +
  + + + +
  - +
    HRegionLocation
    +
```
public HRegionLocation(HRegionInfo regionInfo,
+               ServerName serverName,
+               long seqNum)
```
    +
  +
+ +
- + + +
  Method Detail
  + + + +
  - +
    toString
    +
```
public String toString()
```
    +
    +
    Overrides:
    +
    toString in class Object
    +
    See Also:
    Object.toString()
    +
  + + + +
  - +
    equals
    +
```
public boolean equals(Object o)
```
    +
    +
    Overrides:
    +
    equals in class Object
    +
    See Also:
    Object.equals(java.lang.Object)
    +
  + + + +
  - +
    hashCode
    +
```
public int hashCode()
```
    +
    +
    Overrides:
    +
    hashCode in class Object
    +
    See Also:
    Object.hashCode()
    +
  + + + +
  - +
    getRegionInfo
    +
```
public HRegionInfo getRegionInfo()
```
    +
    Returns:
    HRegionInfo
    +
  + + + +
  - +
    getHostname
    +
```
public String getHostname()
```
    +
  + + + +
  - +
    getPort
    +
```
public int getPort()
```
    +
  + + + +
  - +
    getSeqNum
    +
```
public long getSeqNum()
```
    +
  + + + +
  - +
    getHostnamePort
    +
```
public String getHostnamePort()
```
    +
    Returns:
    String made of hostname and port formatted as + per Addressing.createHostAndPortStr(String, int)
    +
  + + + +
  - +
    getServerName
    +
```
public ServerName getServerName()
```
    +
  + + + +
  - +
    compareTo
    +
```
public int compareTo(HRegionLocation o)
```
    +
    +
    Specified by:
    +
    compareTo in interface Comparable<HRegionLocation>
    +
    +
  +
+

Class HRegionLocation

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Constructor Detail

HRegionLocation

HRegionLocation

Method Detail

toString

equals

hashCode

getRegionInfo

getHostname

getPort

getSeqNum

getHostnamePort

getServerName

compareTo