org.shapelogic.calculation
Class QueryCalc<K,V>

java.lang.Object
  org.shapelogic.calculation.QueryCalc<K,V>

Type Parameters:

K - key

V - value

All Implemented Interfaces:

IQueryCalc<K,V>

public class QueryCalc<K,V>
extends java.lang.Object
implements IQueryCalc<K,V>

A very general interface for doing any kind of queries to lazy calculations and streams.
Generic will mainly not be used. The can be expanded with wild cards, but ignore for now.

Author:

Sami Badawi

Constructor Summary

QueryCalc()

Method Summary

V	get(K key, java.util.Map<K,?>... maps) It is a get that will do the lazy calculation.
V	get(K key, RecursiveContext<K> recursiveContexts) It is a get that will do the lazy calculation.
static QueryCalc	getInstance()
void	put(K key, V value, RecursiveContext<K> recursiveContext) Put in the first non null context in a RecursiveContext.

Methods inherited from class java.lang.Object

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

Constructor Detail

QueryCalc

public QueryCalc()

Method Detail

getInstance

public static QueryCalc getInstance()

get

public V get(K key,
             java.util.Map<K,?>... maps)

It is a get that will do the lazy calculation.
This should not be used to get a Stream since this is treated as a CalcValue and the value is returned instead of the stream.

Specified by:

get in interface IQueryCalc<K,V>

Parameters:

key -

map - sequence of maps to do lookup in starting from the last

Returns:

the value of the first lookup found from the back

get

public V get(K key,
             RecursiveContext<K> recursiveContexts)

Description copied from interface: IQueryCalc

It is a get that will do the lazy calculation.

Specified by:

get in interface IQueryCalc<K,V>

recursiveContexts - class that contains the contexts that this is to be done in.

Returns:

put

public void put(K key,
                V value,
                RecursiveContext<K> recursiveContext)

Put in the first non null context in a RecursiveContext.

Specified by:

put in interface IQueryCalc<K,V>