PerColumnIndexWriter (apache-cassandra API)

All Known Implementing Classes:

MemtableIndexWriter, SSTableIndexWriter
```
public interface PerColumnIndexWriter
```
Creates the on-disk components for a given column index.

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`void`	`abort(java.lang.Throwable cause)`	Aborts accumulating data.
`void`	`addRow(PrimaryKey key, Row row, long sstableRowId)`	Adds a row to this index.
`void`	`complete(com.google.common.base.Stopwatch stopwatch)`	Builds on-disk index data structures from accumulated data, moves them all to the filesystem, and fsync created files.

- Method Detail
  - addRow
```
void addRow(PrimaryKey key,
            Row row,
            long sstableRowId)
     throws java.io.IOException
```
    Adds a row to this index.
    Note: Callers are responsible for ensuring that rows are added in PrimaryKey order.
    
    Throws:
    
    java.io.IOException
  - complete
```
void complete(com.google.common.base.Stopwatch stopwatch)
       throws java.io.IOException
```
    Builds on-disk index data structures from accumulated data, moves them all to the filesystem, and fsync created files.
    
    Throws:
    
    java.io.IOException
  - abort
```
void abort(java.lang.Throwable cause)
```
    Aborts accumulating data. Allows to clean up resources on error.
    Note: Implementations should be idempotent, i.e. safe to call multiple times without producing undesirable side-effects.