T
- the type of elements returned by this PrimitiveIterator. The type must be a wrapper type for a primitive type, such as Integer
for the primitive int
type.T_CONS
- the type of primitive consumer. The type must be a primitive specialization of Consumer
for T
, such as IntConsumer
for Integer
.public interface PrimitiveIterator<T,T_CONS> extends Iterator<T>
A base type for primitive specializations of Iterator
. Specialized subtypes are provided for int
, long
, and double
values.
The specialized subtype default implementations of Iterator.next()
and Iterator.forEachRemaining(java.util.function.Consumer)
box primitive values to instances of their corresponding wrapper class. Such boxing may offset any advantages gained when using the primitive specializations. To avoid boxing, the corresponding primitive-based methods should be used. For example, PrimitiveIterator.OfInt.nextInt()
and PrimitiveIterator.OfInt.forEachRemaining(java.util.function.IntConsumer)
should be used in preference to PrimitiveIterator.OfInt.next()
and PrimitiveIterator.OfInt.forEachRemaining(java.util.function.Consumer)
.
Iteration of primitive values using boxing-based methods next()
and forEachRemaining()
, does not affect the order in which the values, transformed to boxed values, are encountered.
org.openjdk.java.util.stream.tripwire
is set to true
then diagnostic warnings are reported if boxing of primitive values occur when operating on primitive subtype specializations.Modifier and Type | Interface and Description |
---|---|
static interface |
PrimitiveIterator.OfDouble An Iterator specialized for |
static interface |
PrimitiveIterator.OfInt An Iterator specialized for |
static interface |
PrimitiveIterator.OfLong An Iterator specialized for |
void forEachRemaining(T_CONS action)
Performs the given action for each remaining element, in the order elements occur when iterating, until all elements have been processed or the action throws an exception. Errors or runtime exceptions thrown by the action are relayed to the caller.
action
- The action to be performed for each elementNullPointerException
- if the specified action is null
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Documentation extracted from Debian's OpenJDK Development Kit package.
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