org.apache.hadoop.hbase
Class HStoreFile

java.lang.Object
  extended by org.apache.hadoop.hbase.HStoreFile
All Implemented Interfaces:
Comparable, HConstants, Writable, WritableComparable

public class HStoreFile
extends Object
implements HConstants, WritableComparable

Each HStore maintains a bunch of different data files. The filename is a mix of the parent dir, the region name, the column name, and the file identifier. This class handles all that path-building stuff for you.


Field Summary
 
Fields inherited from interface org.apache.hadoop.hbase.HConstants
COL_REGIONINFO, COL_SERVER, COL_STARTCODE, COLUMN_FAMILY, COLUMN_FAMILY_ARRAY, COMPLETE_CACHEFLUSH, DEFAULT_HBASE_DIR, DEFAULT_HOST, DEFAULT_MASTER_ADDRESS, DEFAULT_MAX_FILE_SIZE, DEFAULT_REGION_SERVER_CLASS, DEFAULT_REGIONSERVER_ADDRESS, DELETE_BYTES, HBASE_DIR, HREGION_LOGDIR_NAME, HREGION_OLDLOGFILE_NAME, HREGIONDIR_PREFIX, MASTER_ADDRESS, META_TABLE_NAME, REGION_SERVER_CLASS, REGIONSERVER_ADDRESS, ROOT_TABLE_NAME, THREAD_WAKE_FREQUENCY, UTF8_ENCODING
 
Method Summary
 int compareTo(Object o)
           
 boolean equals(Object o)
           
 int hashCode()
           
 void readFields(DataInput in)
          Reads the fields of this object from in.
 void write(DataOutput out)
          Writes the fields of this object to out.
 
Methods inherited from class java.lang.Object
clone, finalize, getClass, notify, notifyAll, toString, wait, wait, wait
 

Method Detail

equals

public boolean equals(Object o)
Overrides:
equals in class Object

hashCode

public int hashCode()
Overrides:
hashCode in class Object

write

public void write(DataOutput out)
           throws IOException
Description copied from interface: Writable
Writes the fields of this object to out.

Specified by:
write in interface Writable
Throws:
IOException

readFields

public void readFields(DataInput in)
                throws IOException
Description copied from interface: Writable
Reads the fields of this object from in. For efficiency, implementations should attempt to re-use storage in the existing object where possible.

Specified by:
readFields in interface Writable
Throws:
IOException

compareTo

public int compareTo(Object o)
Specified by:
compareTo in interface Comparable


Copyright © 2006 The Apache Software Foundation