@InterfaceAudience.Public @InterfaceStability.Stable public static class Counters.Group extends Object implements CounterGroupBase<Counters.Counter>
Group of counters, comprising of counters from a particular
  counter Enum class.
  Grouphandles localization of the class name and the
  counter names.
| Modifier | Constructor and Description | 
|---|---|
| protected  | Group() | 
| Modifier and Type | Method and Description | 
|---|---|
| void | addCounter(Counters.Counter counter)Add a counter to this group. | 
| Counters.Counter | addCounter(String name,
          String displayName,
          long value)Add a counter to this group | 
| boolean | equals(Object genericRight) | 
| Counters.Counter | findCounter(String counterName)Find a counter in the group. | 
| Counters.Counter | findCounter(String counterName,
           boolean create)Find a counter in the group | 
| Counters.Counter | findCounter(String counterName,
           String displayName)Find a counter in the group. | 
| Counters.Counter | getCounter(int id,
          String name)Deprecated. 
 use  findCounter(String)instead | 
| long | getCounter(String counterName) | 
| Counters.Counter | getCounterForName(String name)Get the counter for the given name and create it if it doesn't exist. | 
| String | getDisplayName()Get the display name of the group. | 
| String | getName()Get the internal name of the group | 
| CounterGroupBase<Counters.Counter> | getUnderlyingGroup() | 
| int | hashCode() | 
| void | incrAllCounters(CounterGroupBase<Counters.Counter> rightGroup)Increment all counters by a group of counters | 
| Iterator<Counters.Counter> | iterator() | 
| String | makeEscapedCompactString() | 
| void | readFields(DataInput in)Deserialize the fields of this object from  in. | 
| void | setDisplayName(String displayName)Set the display name of the group | 
| int | size() | 
| void | write(DataOutput out)Serialize the fields of this object to  out. | 
clone, finalize, getClass, notify, notifyAll, toString, wait, wait, waitforEach, spliteratorpublic long getCounter(String counterName)
counterName - the name of the counterpublic String makeEscapedCompactString()
@Deprecated public Counters.Counter getCounter(int id, String name)
findCounter(String) insteadid - the numeric id of the counter within the groupname - the internal counter namepublic Counters.Counter getCounterForName(String name)
name - the internal counter namepublic void write(DataOutput out) throws IOException
Writableout.write in interface Writableout - DataOuput to serialize this object into.IOException - any other problem for write.public void readFields(DataInput in) throws IOException
Writablein.  
 
 For efficiency, implementations should attempt to re-use storage in the existing object where possible.
readFields in interface Writablein - DataInput to deseriablize this object from.IOException - any other problem for readFields.public Iterator<Counters.Counter> iterator()
iterator in interface Iterable<Counters.Counter>public String getName()
CounterGroupBasegetName in interface CounterGroupBase<Counters.Counter>public String getDisplayName()
CounterGroupBasegetDisplayName in interface CounterGroupBase<Counters.Counter>public void setDisplayName(String displayName)
CounterGroupBasesetDisplayName in interface CounterGroupBase<Counters.Counter>displayName - of the grouppublic void addCounter(Counters.Counter counter)
CounterGroupBaseaddCounter in interface CounterGroupBase<Counters.Counter>counter - to addpublic Counters.Counter addCounter(String name, String displayName, long value)
CounterGroupBaseaddCounter in interface CounterGroupBase<Counters.Counter>name - of the counterdisplayName - of the countervalue - of the counterpublic Counters.Counter findCounter(String counterName, String displayName)
CounterGroupBasefindCounter in interface CounterGroupBase<Counters.Counter>counterName - the name of the counterdisplayName - the display name of the counterpublic Counters.Counter findCounter(String counterName, boolean create)
CounterGroupBasefindCounter in interface CounterGroupBase<Counters.Counter>counterName - the name of the countercreate - create the counter if not found if truepublic Counters.Counter findCounter(String counterName)
CounterGroupBasefindCounter in interface CounterGroupBase<Counters.Counter>counterName - the name of the counterpublic int size()
size in interface CounterGroupBase<Counters.Counter>public void incrAllCounters(CounterGroupBase<Counters.Counter> rightGroup)
CounterGroupBaseincrAllCounters in interface CounterGroupBase<Counters.Counter>rightGroup - the group to be added to this grouppublic CounterGroupBase<Counters.Counter> getUnderlyingGroup()
Copyright © 2023 Apache Software Foundation. All rights reserved.