ai.grakn.graql.internal.util

Class CommonUtil

java.lang.Object

ai.grakn.graql.internal.util.CommonUtil

public class CommonUtil
extends Object

Method Summary

Modifier and Type	Method and Description
static <T> Optional<T>	optionalOr(Optional<T>... options)
static <T> java.util.stream.Stream<T>	optionalToStream(Optional<T> optional)
static <T> java.util.stream.Collector<T,com.google.common.collect.ImmutableList.Builder<T>,com.google.common.collect.ImmutableList<T>>	toImmutableList()
static <T> java.util.stream.Collector<T,com.google.common.collect.ImmutableMultiset.Builder<T>,com.google.common.collect.ImmutableMultiset<T>>	toImmutableMultiset()
static <T> java.util.stream.Collector<T,com.google.common.collect.ImmutableSet.Builder<T>,com.google.common.collect.ImmutableSet<T>>	toImmutableSet()
static <T> Optional<T>	tryAny(Iterable<T> iterable)
static <T> Optional<T>	tryNext(Iterator<T> iterator)

Methods inherited from class java.lang.Object

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

Method Detail

optionalToStream

public static <T> java.util.stream.Stream<T> optionalToStream(Optional<T> optional)

Type Parameters:

T - the type in the optional

Parameters:

optional - the optional to change into a stream

Returns:

a stream of one item if the optional has an element, else an empty stream

tryNext

public static <T> Optional<T> tryNext(Iterator<T> iterator)

tryAny

public static <T> Optional<T> tryAny(Iterable<T> iterable)

optionalOr

@SafeVarargs
public static <T> Optional<T> optionalOr(Optional<T>... options)

toImmutableSet

public static <T> java.util.stream.Collector<T,com.google.common.collect.ImmutableSet.Builder<T>,com.google.common.collect.ImmutableSet<T>> toImmutableSet()

toImmutableList

public static <T> java.util.stream.Collector<T,com.google.common.collect.ImmutableList.Builder<T>,com.google.common.collect.ImmutableList<T>> toImmutableList()

toImmutableMultiset

public static <T> java.util.stream.Collector<T,com.google.common.collect.ImmutableMultiset.Builder<T>,com.google.common.collect.ImmutableMultiset<T>> toImmutableMultiset()