ManyToManyIndex (Atlassian Bamboo 9.5.1 API)

java.lang.Object
- com.atlassian.bamboo.plan.cache.index.util.ManyToManyIndex<K,V>

```
@Internal
@ThreadSafe
public class ManyToManyIndex<K,V>
extends Object
```
A class that allows to index any key <-> value, many-to-many relationship. The key characteristics of this class is that, unlike Multimap, it doesn't require linear scan when removing by value. Both K and V _must_ have hashCode() and equals() correctly defined. The class is, for the most part, thread safe. Important: if accessing forward and backward mapping directly, calling code should synchronize on this object.

Constructor Summary

Constructors
Constructor Description

ManyToManyIndex()

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`void`	`clear()`
`@NotNull Map<V,Set<K>>`	`getBackwardMapping()`	You need to synchronize on this object if using this method.
`@NotNull Set<V>`	`getByKey(K key)`
`@NotNull Set<K>`	`getByValue(V value)`
`@NotNull Map<K,Set<V>>`	`getForwardMapping()`	You need to synchronize on this object if using this method.
`void`	`index(K key, V value)`
`@Nullable Set<V>`	`removeByKey(K key)`
`@Nullable Set<K>`	`removeByValue(V value)`

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail
- ManyToManyIndex
```
public ManyToManyIndex()
```

Method Detail

index

public void index(@NotNull
                  K key,
                  @NotNull
                  V value)

getForwardMapping
```
@NotNull
public @NotNull Map<K,Set<V>> getForwardMapping()
```
You need to synchronize on this object if using this method.

getBackwardMapping
```
@NotNull
public @NotNull Map<V,Set<K>> getBackwardMapping()
```
You need to synchronize on this object if using this method.

removeByKey

@Nullable
public @Nullable Set<V> removeByKey(@NotNull
                                    K key)

removeByValue

@Nullable
public @Nullable Set<K> removeByValue(@NotNull
                                      V value)

getByKey

@NotNull
public @NotNull Set<V> getByKey(@NotNull
                                K key)

getByValue

@NotNull
public @NotNull Set<K> getByValue(@NotNull
                                  V value)

clear
```
public void clear()
```