org.apache.flink.python.api.util

Class SetCache

java.lang.Object

org.apache.flink.python.api.util.SetCache

public class SetCache
extends Object

A container holding DataSets, sorted andunsorted groupings.

Constructor Summary

Constructors

Constructor and Description
SetCache()

Method Summary

Modifier and Type	Method and Description
<D extends org.apache.flink.api.java.DataSet<?>> void	add(int id, D set) Adds the given DataSet to this cache for the given ID.
<S extends org.apache.flink.api.java.operators.SortedGrouping<?>> void	add(int id, S set) Adds the given SortedGrouping to this cache for the given ID.
<U extends org.apache.flink.api.java.operators.UnsortedGrouping<?>> void	add(int id, U set) Adds the given UnsortedGrouping to this cache for the given ID.
<T> org.apache.flink.api.java.DataSet<T>	getDataSet(int id) Returns the cached DataSet for the given ID.
<T> org.apache.flink.api.java.operators.SortedGrouping<T>	getSortedGrouping(int id) Returns the cached SortedGrouping for the given ID.
<T> org.apache.flink.api.java.operators.UnsortedGrouping<T>	getUnsortedGrouping(int id) Returns the cached UnsortedGrouping for the given ID.
boolean	isDataSet(int id) Checks whether the cached set for the given ID is a DataSet.
boolean	isSortedGrouping(int id) Checks whether the cached set for the given ID is a SortedGrouping.
boolean	isUnsortedGrouping(int id) Checks whether the cached set for the given ID is an UnsortedGrouping.
void	reset() Resets this SetCache, removing any cached sets.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

SetCache

public SetCache()

Method Detail

add

public <D extends org.apache.flink.api.java.DataSet<?>> void add(int id,
                                                                 D set)

Adds the given DataSet to this cache for the given ID.

Type Parameters:

D - DataSet class

Parameters:

id - Set ID

set - DataSet to add

add

public <U extends org.apache.flink.api.java.operators.UnsortedGrouping<?>> void add(int id,
                                                                                    U set)

Adds the given UnsortedGrouping to this cache for the given ID.

Type Parameters:

U - UnsortedGrouping class

Parameters:

id - Set ID

set - UnsortedGrouping to add

add

public <S extends org.apache.flink.api.java.operators.SortedGrouping<?>> void add(int id,
                                                                                  S set)

Adds the given SortedGrouping to this cache for the given ID.

Type Parameters:

S - SortedGrouping class

Parameters:

id - Set ID

set - SortedGrouping to add

isDataSet

public boolean isDataSet(int id)

Checks whether the cached set for the given ID is a DataSet.

Parameters:

id - id of set to check

Returns:

true, if the cached set is a DataSet, false otherwise

isUnsortedGrouping

public boolean isUnsortedGrouping(int id)

Checks whether the cached set for the given ID is an UnsortedGrouping.

Parameters:

id - id of set to check

Returns:

true, if the cached set is an UnsortedGrouping, false otherwise

isSortedGrouping

public boolean isSortedGrouping(int id)

Checks whether the cached set for the given ID is a SortedGrouping.

Parameters:

id - Set ID

Returns:

true, if the cached set is a SortedGrouping, false otherwise

getDataSet

public <T> org.apache.flink.api.java.DataSet<T> getDataSet(int id)

Returns the cached DataSet for the given ID.

Type Parameters:

T - DataSet type

Parameters:

id - Set ID

Returns:

Cached DataSet

Throws:

IllegalStateException - if the cached set is not a DataSet

getUnsortedGrouping

public <T> org.apache.flink.api.java.operators.UnsortedGrouping<T> getUnsortedGrouping(int id)

Returns the cached UnsortedGrouping for the given ID.

Type Parameters:

T - UnsortedGrouping type

Parameters:

id - Set ID

Returns:

Cached UnsortedGrouping

Throws:

IllegalStateException - if the cached set is not an UnsortedGrouping

getSortedGrouping

public <T> org.apache.flink.api.java.operators.SortedGrouping<T> getSortedGrouping(int id)

Returns the cached SortedGrouping for the given ID.

Type Parameters:

T - SortedGrouping type

Parameters:

id - Set ID

Returns:

Cached SortedGrouping

Throws:

IllegalStateException - if the cached set is not a SortedGrouping

reset

public void reset()

Resets this SetCache, removing any cached sets.