ReductionDataReader (Solr 8.1.0 API)

java.lang.Object
- org.apache.solr.analytics.stream.reservation.read.ReductionDataReader<A>

Direct Known Subclasses:

BooleanDataReader, DoubleDataReader, FloatDataReader, IntDataReader, LongDataReader, ReductionCheckedDataReader, ReductionDataArrayReader, StringDataReader
```
public abstract class ReductionDataReader<A>
extends Object
```
Abstract class to manage the reading and application of data from a DataInput stream.

- Field Summary
  
  Fields
  Modifier and Type Field Description
  
  protected A applier
  
  protected DataInput inputStream
- Constructor Summary
  
  Constructors
  Constructor Description
  
  ReductionDataReader(DataInput inputStream, A applier)
- Method Summary
  
  All Methods Instance Methods Abstract Methods
  Modifier and Type Method Description
  
  abstract void read()
  Read a piece of data from the input stream and feed it to the applier.
  - Methods inherited from class java.lang.Object
    clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

inputStream
```
protected final DataInput inputStream
```

applier
```
protected final A applier
```

Constructor Detail

ReductionDataReader

public ReductionDataReader(DataInput inputStream,
                           A applier)

Method Detail
- read
```
public abstract void read()
                   throws IOException
```
  Read a piece of data from the input stream and feed it to the applier.
  
  Throws:
  
  IOException - if an exception occurs while reading from the input stream