com.google.api.services.dataflow.model

Class Step

java.lang.Object

java.util.AbstractMap<String,Object>

com.google.api.client.util.GenericData

com.google.api.client.json.GenericJson

com.google.api.services.dataflow.model.Step

All Implemented Interfaces:

Cloneable, Map<String,Object>

public final class Step
extends GenericJson

Defines a particular step within a Cloud Dataflow job. A job consists of multiple steps, each of which performs some specific operation as part of the overall job. Data is typically passed from one step to another as part of the job. Here's an example of a sequence of steps which together implement a Map-Reduce job: * Read a collection of data from some source, parsing the collection's elements. * Validate the elements. * Apply a user-defined function to map each element to some value and extract an element- specific key value. * Group elements with the same key into a single element with that key, transforming a multiply-keyed collection into a uniquely-keyed collection. * Write the elements out to some data sink. Note that the Cloud Dataflow service may be used to run many different types of jobs, not just Map-Reduce.

This is the Java data model class that specifies how to parse/serialize into the JSON that is transmitted over HTTP when working with the Google Dataflow API. For a detailed explanation see: http://code.google.com/p/google-http-java-client/wiki/JSON

Author:

Google, Inc.

Nested Class Summary

Nested classes/interfaces inherited from class com.google.api.client.util.GenericData

GenericData.Flags

Nested classes/interfaces inherited from class java.util.AbstractMap

AbstractMap.SimpleEntry<K,V>, AbstractMap.SimpleImmutableEntry<K,V>

Nested classes/interfaces inherited from interface java.util.Map

Map.Entry<K,V>

Constructor Summary

Constructors

Constructor and Description
Step()

Method Summary

Methods

Modifier and Type	Method and Description
Step	clone()
String	getKind() The kind of step in the Cloud Dataflow job.
String	getName() The name that identifies the step.
Map<String,Object>	getProperties() Named properties associated with the step.
Step	set(String fieldName, Object value)
Step	setKind(String kind) The kind of step in the Cloud Dataflow job.
Step	setName(String name) The name that identifies the step.
Step	setProperties(Map<String,Object> properties) Named properties associated with the step.

Methods inherited from class com.google.api.client.json.GenericJson

getFactory, setFactory, toPrettyString, toString

Methods inherited from class com.google.api.client.util.GenericData

entrySet, get, getClassInfo, getUnknownKeys, put, putAll, remove, setUnknownKeys

Methods inherited from class java.util.AbstractMap

clear, containsKey, containsValue, equals, hashCode, isEmpty, keySet, size, values

Methods inherited from class java.lang.Object

finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

Step

public Step()

Method Detail

getKind

public String getKind()

The kind of step in the Cloud Dataflow job.

Returns:

value or null for none

setKind

public Step setKind(String kind)

The kind of step in the Cloud Dataflow job.

Parameters:

kind - kind or null for none

getName

public String getName()

The name that identifies the step. This must be unique for each step with respect to all other steps in the Cloud Dataflow job.

Returns:

value or null for none

setName

public Step setName(String name)

The name that identifies the step. This must be unique for each step with respect to all other steps in the Cloud Dataflow job.

Parameters:

name - name or null for none

getProperties

public Map<String,Object> getProperties()

Named properties associated with the step. Each kind of predefined step has its own required set of properties.

Returns:

value or null for none

setProperties

public Step setProperties(Map<String,Object> properties)

Named properties associated with the step. Each kind of predefined step has its own required set of properties.

Parameters:

properties - properties or null for none

set

public Step set(String fieldName,
       Object value)

Overrides:

set in class GenericJson

clone

public Step clone()

Overrides:

clone in class GenericJson