Accumulator

Type Parameters:

T - the type

All Superinterfaces:

java.lang.Iterable<T>

All Known Implementing Classes:

CallbackAccumulator, FilteringAccumulatorWrapper, ListAccumulator, SetAccumulator, SizeLimitedAccumulatorWrapper, SynchronizedListAccumulator
```
public interface Accumulator<T>
extends java.lang.Iterable<T>
```
The interface provides a mechanism for clients to pass around an object that is effectively a 'results object', into which data can be placed as it is discovered.
Historically, clients that load data will return results, once fully loaded, in a Collection. This has the drawback that the discovered data cannot be used until all searching is complete. This interface can now be passed into such a method (as opposed to be returned by it) so that the client can make use of data as it is discovered. This allows for long searching processes to report data as they work.

Method Summary

All Methods Instance Methods Abstract Methods Default Methods
Modifier and Type	Method	Description
`void`	`add(T t)`
`void`	`addAll(java.util.Collection<T> collection)`
`boolean`	`contains(T t)`
`java.util.Collection<T>`	`get()`
`default boolean`	`isEmpty()`
`int`	`size()`
`default java.util.stream.Stream<T>`	`stream()`

Methods inherited from interface java.lang.Iterable
forEach, iterator, spliterator

Method Detail

add
```
void add(T t)
```

addAll

void addAll(java.util.Collection<T> collection)

contains
```
boolean contains(T t)
```

get
```
java.util.Collection<T> get()
```

size
```
int size()
```

isEmpty
```
default boolean isEmpty()
```

stream

default java.util.stream.Stream<T> stream()