graphql.util

Class FpKit

java.lang.Object

graphql.util.FpKit

public class FpKit
extends java.lang.Object

Constructor Summary

Constructors

Constructor and Description
FpKit()

Method Summary

Modifier and Type	Method and Description
static <T> java.util.List<T>	concat(java.util.List<T> l1, java.util.List<T> l2) Concatenates two lists into one
static <T> java.util.List<T>	concat(java.util.List<T> l, T t) Concatenates (appends) a single elements to an existing list
static <T> java.util.Map<java.lang.String,T>	getByName(java.util.List<T> namedObjects, java.util.function.Function<T,java.lang.String> nameFn)
static <T> java.util.Map<java.lang.String,T>	getByName(java.util.List<T> namedObjects, java.util.function.Function<T,java.lang.String> nameFn, java.util.function.BinaryOperator<T> mergeFunc)
static <T> java.util.function.BinaryOperator<T>	mergeFirst()
static <T> java.util.Collection<T>	toCollection(java.lang.Object iterableResult) Converts an object that should be an Iterable into a Collection efficiently, leaving it alone if it is already is one.
static <T> java.util.List<T>	valuesToList(java.util.Map<?,T> map)

Methods inherited from class java.lang.Object

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

Constructor Detail

FpKit

public FpKit()

Method Detail

getByName

public static <T> java.util.Map<java.lang.String,T> getByName(java.util.List<T> namedObjects,
                                                              java.util.function.Function<T,java.lang.String> nameFn,
                                                              java.util.function.BinaryOperator<T> mergeFunc)

getByName

public static <T> java.util.Map<java.lang.String,T> getByName(java.util.List<T> namedObjects,
                                                              java.util.function.Function<T,java.lang.String> nameFn)

mergeFirst

public static <T> java.util.function.BinaryOperator<T> mergeFirst()

toCollection

public static <T> java.util.Collection<T> toCollection(java.lang.Object iterableResult)

Converts an object that should be an Iterable into a Collection efficiently, leaving it alone if it is already is one. Useful when you want to get the size of something

Type Parameters:

T - the type of thing

Parameters:

iterableResult - the result object

Returns:

an Iterable from that object

Throws:

java.lang.ClassCastException - if its not an Iterable

concat

public static <T> java.util.List<T> concat(java.util.List<T> l,
                                           T t)

Concatenates (appends) a single elements to an existing list

Type Parameters:

T - the type of elements of the list

Parameters:

l - the list onto which to append the element

t - the element to append

Returns:

a new list componsed of the first list elements and the new element

concat

public static <T> java.util.List<T> concat(java.util.List<T> l1,
                                           java.util.List<T> l2)

Concatenates two lists into one

Type Parameters:

T - the type of element of the lists

Parameters:

l1 - the first list to concatenate

l2 - the second list to concatenate

Returns:

a new list composed of the two concatenated lists elements

valuesToList

public static <T> java.util.List<T> valuesToList(java.util.Map<?,T> map)