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java.lang.Objectorg.apache.hadoop.util.bloom.Key
public class Key
The general behavior of a key that must be stored in a filter.
The general behavior of a filter| Constructor Summary | |
|---|---|
Key()
default constructor - use with readFields |
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Key(byte[] value)
Constructor. |
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Key(byte[] value,
double weight)
Constructor. |
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| Method Summary | |
|---|---|
int |
compareTo(Key other)
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boolean |
equals(Object o)
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byte[] |
getBytes()
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double |
getWeight()
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int |
hashCode()
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void |
incrementWeight()
Increments the weight of this key by one. |
void |
incrementWeight(double weight)
Increments the weight of this key with a specified value. |
void |
readFields(DataInput in)
Deserialize the fields of this object from in. |
void |
set(byte[] value,
double weight)
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void |
write(DataOutput out)
Serialize the fields of this object to out. |
| Methods inherited from class java.lang.Object |
|---|
clone, finalize, getClass, notify, notifyAll, toString, wait, wait, wait |
| Constructor Detail |
|---|
public Key()
public Key(byte[] value)
Builds a key with a default weight.
value - The byte value of this key.
public Key(byte[] value,
double weight)
Builds a key with a specified weight.
value - The value of this key.weight - The weight associated to this key.| Method Detail |
|---|
public void set(byte[] value,
double weight)
value - weight - public byte[] getBytes()
public double getWeight()
public void incrementWeight(double weight)
weight - The increment.public void incrementWeight()
public boolean equals(Object o)
equals in class Objectpublic int hashCode()
hashCode in class Object
public void write(DataOutput out)
throws IOException
Writableout.
write in interface Writableout - DataOuput to serialize this object into.
IOException
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.
IOExceptionpublic int compareTo(Key other)
compareTo in interface Comparable<Key>
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