org.kitesdk.data.partition
Class IdentityFieldPartitioner<S extends Comparable>

java.lang.Object
  org.kitesdk.data.FieldPartitioner<S,S>
      org.kitesdk.data.partition.IdentityFieldPartitioner<S>

All Implemented Interfaces:

com.google.common.base.Function<S,S>, Comparator<S>

@Beta
public class IdentityFieldPartitioner<S extends Comparable>
extends FieldPartitioner<S,S>

Constructor Summary

IdentityFieldPartitioner(String name, Class<S> type, int buckets)

Method Summary

S	apply(S value) Apply the partition function to the given value.
int	compare(S o1, S o2)
boolean	equals(Object o)
int	hashCode()
com.google.common.base.Predicate<S>	project(com.google.common.base.Predicate<S> predicate) Projects a source-data constraint Predicate into the image of the backing partition function.
String	toString()
S	valueFromString(String stringValue) Deprecated.

Methods inherited from class org.kitesdk.data.FieldPartitioner

getCardinality, getName, getSourceName, getSourceType, getType, valueToString

Methods inherited from class java.lang.Object

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

Constructor Detail

IdentityFieldPartitioner

public IdentityFieldPartitioner(String name,
                                Class<S> type,
                                int buckets)

Method Detail

apply

public S apply(S value)

Description copied from class: FieldPartitioner

Apply the partition function to the given value.

The type of value must be compatible with the field partitioner implementation. Normally, this is validated at the time of initial configuration rather than at runtime.

Specified by:

apply in interface com.google.common.base.Function<S extends Comparable,S extends Comparable>

Specified by:

apply in class FieldPartitioner<S extends Comparable,S extends Comparable>

valueFromString

@Deprecated
public S valueFromString(String stringValue)

Deprecated.

Description copied from class: FieldPartitioner

Retrieve the value for the field from the string representation.

Specified by:

valueFromString in class FieldPartitioner<S extends Comparable,S extends Comparable>

project

public com.google.common.base.Predicate<S> project(com.google.common.base.Predicate<S> predicate)

Description copied from class: FieldPartitioner

Projects a source-data constraint Predicate into the image of the backing partition function. If the function cannot be projected exactly, the resulting predicate must be more permissive than the original predicate.

Specified by:

project in class FieldPartitioner<S extends Comparable,S extends Comparable>

equals

public boolean equals(Object o)

Specified by:

equals in interface com.google.common.base.Function<S extends Comparable,S extends Comparable>

Specified by:

equals in interface Comparator<S extends Comparable>

Overrides:

equals in class Object

compare

public int compare(S o1,
                   S o2)

hashCode

public int hashCode()

Overrides:

hashCode in class Object

toString

public String toString()

Overrides:

toString in class Object