MemoryPostingsFormat (Lucene 7.7.0 API)

java.lang.Object
- org.apache.lucene.codecs.PostingsFormat
- - org.apache.lucene.codecs.memory.MemoryPostingsFormat

All Implemented Interfaces:

NamedSPILoader.NamedSPI
```
public final class MemoryPostingsFormat
extends PostingsFormat
```
Stores terms and postings (docs, positions, payloads) in RAM, using an FST.
Note that this codec implements advance as a linear scan! This means if you store large fields in here, queries that rely on advance will (AND BooleanQuery, PhraseQuery) will be relatively slow!

WARNING: This API is experimental and might change in incompatible ways in the next release.

Field Summary
- Fields inherited from class org.apache.lucene.codecs.PostingsFormat
  EMPTY

Constructor Summary

Constructors
Constructor	Description
`MemoryPostingsFormat()`
`MemoryPostingsFormat(boolean doPackFST, float acceptableOverheadRatio)`	Create MemoryPostingsFormat, specifying advanced FST options.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`FieldsConsumer`	`fieldsConsumer(SegmentWriteState state)`
`FieldsProducer`	`fieldsProducer(SegmentReadState state)`
`String`	`toString()`

Methods inherited from class org.apache.lucene.codecs.PostingsFormat
availablePostingsFormats, forName, getName, reloadPostingsFormats

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

- Constructor Detail
  - MemoryPostingsFormat
```
public MemoryPostingsFormat()
```
  - MemoryPostingsFormat
```
public MemoryPostingsFormat(boolean doPackFST,
                            float acceptableOverheadRatio)
```
    Create MemoryPostingsFormat, specifying advanced FST options.
    
    Parameters:
    
    doPackFST - true if a packed FST should be built. NOTE: packed FSTs are limited to ~2.1 GB of postings.
    
    acceptableOverheadRatio - allowable overhead for packed ints during FST construction.
- Method Detail
  - toString
```
public String toString()
```
    Overrides:
    
    toString in class PostingsFormat
  - fieldsConsumer
```
public FieldsConsumer fieldsConsumer(SegmentWriteState state)
                              throws IOException
```
    Specified by:
    
    fieldsConsumer in class PostingsFormat
    
    Throws:
    
    IOException
  - fieldsProducer
```
public FieldsProducer fieldsProducer(SegmentReadState state)
                              throws IOException
```
    Specified by:
    
    fieldsProducer in class PostingsFormat
    
    Throws:
    
    IOException