com.emphysic.myriad.core.data.ops

Class ChainedDatasetOperation

java.lang.Object

com.emphysic.myriad.core.data.ops.ChainedDatasetOperation

All Implemented Interfaces:

DatasetOperation, ObjectMap, com.esotericsoftware.kryo.KryoSerializable

public class ChainedDatasetOperation
extends java.lang.Object
implements DatasetOperation

ChainedDatasetOperation - performs multiple DatasetOperations on an input.

Constructor Summary

Constructors

Constructor and Description
ChainedDatasetOperation() Creates a new empty ChainedDatasetOperation.

Method Summary

Modifier and Type	Method and Description
java.util.Map<java.lang.String,java.lang.Object>	getObjectMap() Creates a map of the important fields for the instance, suitable for serialization.
java.util.List<DatasetOperation>	getOps() Returns the current list of DatasetOperations.
long	getSerializationVersion() Returns the current version of the serialization format.
int	getVersion() Returns the current class version.
void	initCurrentVersion(java.util.Map<java.lang.String,java.lang.Object> objectMap) Initializes an instance with a current-version object graph.
Dataset	run(Dataset input) Runs each DatasetOperation in turn and returns the final result.
ChainedDatasetOperation	withOp(DatasetOperation op) Appends a new DatasetOperation as the last operation in the chain.
ChainedDatasetOperation	withOp(int idx, DatasetOperation op) Adds a new DatasetOperation to the chain.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface com.emphysic.myriad.core.data.util.ObjectMap

init, initPreviousVersion, initUnknownVersion, load, read, save, write

Constructor Detail

ChainedDatasetOperation

public ChainedDatasetOperation()

Creates a new empty ChainedDatasetOperation. @see #ChainedDatasetOperation.withOp.

Method Detail

run

public Dataset run(Dataset input)

Runs each DatasetOperation in turn and returns the final result.

Specified by:

run in interface DatasetOperation

Parameters:

input - original Dataset

Returns:

result of running operations.get(0), operations.get(1), ... operations.get(N)

withOp

public ChainedDatasetOperation withOp(int idx,
                                      DatasetOperation op)

Adds a new DatasetOperation to the chain. Returns this instance for chaining, e.g. chain.withOp(Operation1).withOp(Operation2)...

Parameters:

idx - position of the operation - the 0th operation being the first operation performed.

op - DatasetOperation to add to the chain

Returns:

this

withOp

public ChainedDatasetOperation withOp(DatasetOperation op)

Appends a new DatasetOperation as the last operation in the chain. Returns this instance for chaining, e.g. chain.withOp(Operation1).withOp(Operation2)...

Parameters:

op - DatasetOperation to add to the chain

Returns:

this

getOps

public java.util.List<DatasetOperation> getOps()

Returns the current list of DatasetOperations.

Returns:

current chain

getSerializationVersion

public long getSerializationVersion()

Description copied from interface: ObjectMap

Returns the current version of the serialization format. Increments when the serialization format changes, i.e. backwards compatibility is broken.

Specified by:

getSerializationVersion in interface ObjectMap

Returns:

serialization version

getVersion

public int getVersion()

Description copied from interface: ObjectMap

Returns the current class version. Class version increments when the class changes but doesn't necessarily break compatibility with serialization.

Specified by:

getVersion in interface ObjectMap

Returns:

class version

getObjectMap

public java.util.Map<java.lang.String,java.lang.Object> getObjectMap()

Description copied from interface: ObjectMap

Creates a map of the important fields for the instance, suitable for serialization.

Specified by:

getObjectMap in interface ObjectMap

Returns:

"object map" of the instance

initCurrentVersion

public void initCurrentVersion(java.util.Map<java.lang.String,java.lang.Object> objectMap)

Description copied from interface: ObjectMap

Initializes an instance with a current-version object graph.

Specified by:

initCurrentVersion in interface ObjectMap

Parameters:

objectMap - object graph for initialization