CompressedAny2RIDIndex (arcadedb-engine 22.1.2 API)

java.lang.Object
- com.arcadedb.index.CompressedAny2RIDIndex<K>

```
public class CompressedAny2RIDIndex<K>
extends Object
```
Map like optimized to avoid stressing the GC by using mechanical sympathy technique + compression of key and values. This class is synchronized. Values are RIDs, key can be anything. This Map implementation doesn't support to overwrite a value. Values cannot be null.
A Binary object is used to store the hash table (the first part of it) and then keys and values. The key is serialized in the position pointed by the hash table, then a fixed-size integer containing the next entry (with the same hash) and after that the compressed RID.
TODO support up to 4GB by using unsigned int

Nested Class Summary

Nested Classes
Modifier and Type Class Description

class CompressedAny2RIDIndex.EntryIterator

Constructor Summary

Constructors
Constructor Description

CompressedAny2RIDIndex(Database database, Type keyType, int expectedSize)

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`boolean`	`containsKey(Object key)`
`RID`	`get(Binary threadBuffer, Object key)`
`RID`	`get(Object key)`
`int`	`getChunkAllocated()`
`int`	`getChunkSize()`
`Binary`	`getInternalBuffer()`
`Type`	`getKeyBinaryType()`
`int`	`getTotalUsedSlots()`
`boolean`	`isEmpty()`
`void`	`put(K key, RID value)`
`int`	`size()`
`CompressedAny2RIDIndex.EntryIterator`	`vertexIterator()`

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

Constructor Detail

CompressedAny2RIDIndex

public CompressedAny2RIDIndex(Database database,
                              Type keyType,
                              int expectedSize)

Method Detail

getKeyBinaryType
```
public Type getKeyBinaryType()
```

vertexIterator

public CompressedAny2RIDIndex.EntryIterator vertexIterator()

size
```
public int size()
```

isEmpty
```
public boolean isEmpty()
```

containsKey

public boolean containsKey(Object key)

get
```
public RID get(Object key)
```

get

public RID get(Binary threadBuffer,
               Object key)

put

public void put(K key,
                RID value)

getChunkSize
```
public int getChunkSize()
```

getChunkAllocated
```
public int getChunkAllocated()
```

getTotalUsedSlots
```
public int getTotalUsedSlots()
```

getInternalBuffer
```
public Binary getInternalBuffer()
```