ChainDataRDD (biojava-spark 0.3.0 API)

java.lang.Object
- org.biojava.spark.data.ChainDataRDD

```
public class ChainDataRDD
extends java.lang.Object
```
The class to provide functions on chains using the JavaPairRDD of Chain.

Author:

Anthony Bradley

Constructor Summary

Constructors
Constructor	Description
`ChainDataRDD(org.apache.spark.api.java.JavaPairRDD<java.lang.String,org.biojava.nbio.structure.Chain> chainDataRDD)`	The constructore of the `ChainDataRDD` using a `JavaPairRDD` of type `Chain`.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`GroupDataRDD`	`getGroups()`	Get the `Group` objects as an `GroupDataRDD`.
`ChainDataRDD`	`getNonPolymerChains()`	Get only the non-polymer chains.
`ChainDataRDD`	`getPolymerChains()`	Get only the polymer chains.
`org.apache.spark.api.java.JavaPairRDD<java.lang.String,org.biojava.nbio.structure.Chain>`	`getRDD()`	Get the `JavaPairRDD` of the `Chain` objects.
`ChainDataRDD`	`getWaterChains()`	Get only the water chains.

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

- Constructor Detail
  - ChainDataRDD
```
public ChainDataRDD(org.apache.spark.api.java.JavaPairRDD<java.lang.String,org.biojava.nbio.structure.Chain> chainDataRDD)
```
    The constructore of the ChainDataRDD using a JavaPairRDD of type Chain.
    
    Parameters:
    
    chainDataRDD - the input JavaPairRDD of Chain
- Method Detail
  - getRDD
```
public org.apache.spark.api.java.JavaPairRDD<java.lang.String,org.biojava.nbio.structure.Chain> getRDD()
```
    Get the JavaPairRDD of the Chain objects.
    
    Returns:
    
    the JavaPairRDD of the Chain objects
  - getPolymerChains
```
public ChainDataRDD getPolymerChains()
```
    Get only the polymer chains.
    
    Returns:
    
    a ChainDataRDD of Chain only of polymers
  - getNonPolymerChains
```
public ChainDataRDD getNonPolymerChains()
```
    Get only the non-polymer chains.
    
    Returns:
    
    a ChainDataRDD of Chain only of non-polymers
  - getWaterChains
```
public ChainDataRDD getWaterChains()
```
    Get only the water chains.
    
    Returns:
    
    a ChainDataRDD of Chain only of waters
  - getGroups
```
public GroupDataRDD getGroups()
```
    Get the Group objects as an GroupDataRDD.
    
    Returns:
    
    a GroupDataRDD of Group objects.