com.cinchapi.concourse.data.transform

Class DataProjection<T>

Object

ForwardingObject

ForwardingMap<KT,VT>

DataProjection<T>

All Implemented Interfaces:

Projection<T>, Map<T,Set<Long>>

public class DataProjection<T>
extends ForwardingMap<KT,VT>
implements Projection<T>

A Projection based on a TObject result set, that transforms values on the fly.

Nested Class Summary

Nested classes/interfaces inherited from class ForwardingMap

ForwardingMap.StandardEntrySet, ForwardingMap.StandardKeySet, ForwardingMap.StandardValues

Nested classes/interfaces inherited from interface Map

Map.Entry<K,V>

Method Summary

Modifier and Type	Method and Description
protected Supplier<Map<T,Set<Long>>>	$prettyMapSupplier() Return a Supplier of a Map instance that outputs a pretty string.
protected Map<KT,VT>	delegate()
boolean	isEmpty()
static <T> DataProjection<T>	of(Map<TObject,Set<Long>> data) Convert the TObject values in the results to their java counterparts and prettify the result set lazily.
int	size()
String	toString()
protected T	transformKey(TObject key) Transform the key to the appropriate type.
protected Set<Long>	transformValue(Set<Long> value) Transform the value to the appropriate type.

Methods inherited from class ForwardingMap

clear, containsKey, containsValue, entrySet, equals, get, hashCode, keySet, put, putAll, remove, standardClear, standardContainsKey, standardContainsValue, standardEquals, standardHashCode, standardIsEmpty, standardPutAll, standardRemove, standardToString, values

Methods inherited from class Object

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

Methods inherited from interface Map

clear, compute, computeIfAbsent, computeIfPresent, containsKey, containsValue, entrySet, equals, forEach, get, getOrDefault, hashCode, isEmpty, keySet, merge, put, putAll, putIfAbsent, remove, remove, replace, replace, replaceAll, size, values

Method Detail

of

public static <T> DataProjection<T> of(Map<TObject,Set<Long>> data)

Convert the TObject values in the results to their java counterparts and prettify the result set lazily.

Parameters:

data -

Returns:

the converted results in the form of a Map whose toString() method does pretty printing

$prettyMapSupplier

protected Supplier<Map<T,Set<Long>>> $prettyMapSupplier()

Return a Supplier of a Map instance that outputs a pretty string.

Returns:

an empty Map

See Also:

com.cinchapi.concourse.util.PrettyLinkedHashMap}, com.cinchapi.concourse.util.PrettyLinkedTableMap}

transformKey

protected T transformKey(TObject key)

Transform the key to the appropriate type.

Returns:

the transformed key

transformValue

protected Set<Long> transformValue(Set<Long> value)

Transform the value to the appropriate type.

Returns:

the transformed value.

isEmpty

public boolean isEmpty()

Specified by:

isEmpty in interface Map<KT,VT>

Overrides:

isEmpty in class ForwardingMap<KT,VT>

size

public int size()

Specified by:

size in interface Map<KT,VT>

Overrides:

size in class ForwardingMap<KT,VT>

toString

public final String toString()

Overrides:

toString in class ForwardingObject

delegate

protected Map<KT,VT> delegate()

Overrides:

delegate in class ForwardingMap<KT,VT>