Package org.jdbi.v3.core.internal

Class IterableLike

java.lang.Object

org.jdbi.v3.core.internal.IterableLike

public class IterableLike
extends Object

Implements Iterator methods for unidentified arrays and Iterable things that do not have a more specific type than Object. Note that its elements will be returned as Object, primitives included (will be autoboxed).

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
(package private) static class	IterableLike.PrimitiveArrayIterator

Constructor Summary

Constructors

Modifier	Constructor	Description
private	IterableLike()

Method Summary

Modifier and Type	Method	Description
static Optional<Type>	elementTypeOf(Object iterable)	Given an iterable-like object, try to determine its static (i.e, without looking at contents) element type.
static Optional<Type>	elementTypeOf(Type type)	Given an iterable-like type, try to determine its static (i.e, without looking at contents) element type.
private static String	getTypeWarning(Class<?> type)
static boolean	isIterable(Object maybeIterable)	Returns true if the given object is iterable.
static Iterable<Object>	iterable(Object iterable)	Given an iterable object (which may be a iterator, iterable, primitive or reference array), return an iterable over its (possibly boxed) elements.
static Iterator<Object>	of(Object iterable)	Given an iterable object (which may be a iterator, iterable, primitive or reference array), return an iterator over its (possibly boxed) elements.
static Stream<Object>	stream(Object iterable)	Given an iterable object (which may be a iterator, iterable, primitive or reference array), return a Stream over its (possibly boxed) elements.
static List<Object>	toList(Object iterable)	Collect an iterable-like into a newly allocated ArrayList.

Methods inherited from class java.lang.Object

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

Constructor Details

IterableLike

private IterableLike()

Method Details

isIterable

public static boolean isIterable(Object maybeIterable)

Returns true if the given object is iterable.

Parameters:

maybeIterable - the object that might be iterable.

Returns:

whether IterableLike can iterate over the given object.

of

public static Iterator<Object> of(Object iterable)

Given an iterable object (which may be a iterator, iterable, primitive or reference array), return an iterator over its (possibly boxed) elements.

Parameters:

iterable - the iterable-like

Returns:

an iterator of the given array's elements

elementTypeOf

public static Optional<Type> elementTypeOf(Object iterable)

Given an iterable-like object, try to determine its static (i.e, without looking at contents) element type.

elementTypeOf

public static Optional<Type> elementTypeOf(Type type)

Given an iterable-like type, try to determine its static (i.e, without looking at contents) element type.

stream

public static Stream<Object> stream(Object iterable)

Given an iterable object (which may be a iterator, iterable, primitive or reference array), return a Stream over its (possibly boxed) elements.

Returns:

a stream of the given array's elements

iterable

public static Iterable<Object> iterable(Object iterable)

Given an iterable object (which may be a iterator, iterable, primitive or reference array), return an iterable over its (possibly boxed) elements.

Parameters:

iterable - the iterable-like to create a real Iterable for

Returns:

the created Iterable

toList

public static List<Object> toList(Object iterable)

Collect an iterable-like into a newly allocated ArrayList.

Parameters:

iterable - the iterable-like to collect

Returns:

a new list with the elements

getTypeWarning

private static String getTypeWarning(Class<?> type)