org.apache.ignite.internal.processors.hadoop.counter

Class HadoopCounterAdapter

java.lang.Object

org.apache.ignite.internal.processors.hadoop.counter.HadoopCounterAdapter

All Implemented Interfaces:

Externalizable, Serializable, HadoopCounter

Direct Known Subclasses:

HadoopLongCounter, HadoopPerformanceCounter

public abstract class HadoopCounterAdapter
extends Object
implements HadoopCounter, Externalizable

Default Hadoop counter implementation.

See Also:

Serialized Form

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	HadoopCounterAdapter() Default constructor required by Externalizable.
protected	HadoopCounterAdapter(String grp, String name) Creates new counter with given group and name.

Method Summary

Modifier and Type	Method and Description
boolean	equals(Object o)
String	group()
int	hashCode()
String	name()
void	readExternal(ObjectInput in)
protected abstract void	readValue(ObjectInput in) Read value of this counter from input.
String	toString()
void	writeExternal(ObjectOutput out)
protected abstract void	writeValue(ObjectOutput out) Writes value of this counter to output.

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface org.apache.ignite.internal.processors.hadoop.counter.HadoopCounter

merge

Constructor Detail

HadoopCounterAdapter

protected HadoopCounterAdapter()

Default constructor required by Externalizable.

HadoopCounterAdapter

protected HadoopCounterAdapter(String grp,
                               String name)

Creates new counter with given group and name.

Parameters:

grp - Counter group name.

name - Counter name.

Method Detail

name

public String name()

Specified by:

name in interface HadoopCounter

group

@Nullable
public String group()

Specified by:

group in interface HadoopCounter

writeExternal

public void writeExternal(ObjectOutput out)
                   throws IOException

Specified by:

writeExternal in interface Externalizable

Throws:

IOException

readExternal

public void readExternal(ObjectInput in)
                  throws IOException,
                         ClassNotFoundException

Specified by:

readExternal in interface Externalizable

Throws:

IOException

ClassNotFoundException

equals

public boolean equals(Object o)

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object

toString

public String toString()

Overrides:

toString in class Object

writeValue

protected abstract void writeValue(ObjectOutput out)
                            throws IOException

Writes value of this counter to output.

Parameters:

out - Output.

Throws:

IOException - If failed.

readValue

protected abstract void readValue(ObjectInput in)
                           throws IOException

Read value of this counter from input.

Parameters:

in - Input.

Throws:

IOException - If failed.