org.apache.oozie.fluentjob.api.dag

Class Start

java.lang.Object

org.apache.oozie.fluentjob.api.dag.NodeBase

org.apache.oozie.fluentjob.api.dag.Start

public class Start
extends NodeBase

A class representing start nodes in an Oozie workflow definition DAG. These nodes are generated automatically, the end user should not need to use this class directly.

Constructor Summary

Constructors

Constructor and Description
Start(String name) Create a new start node with the given name.

Method Summary

Modifier and Type	Method and Description
protected void	addChild(NodeBase child) Adds a child to this NodeBase object.
void	addParent(NodeBase parent) Throws IllegalStateException as start nodes cannot have parents.
void	addParentDefaultConditional(Decision parent) Throws IllegalStateException as start nodes cannot have parents.
void	addParentWithCondition(Decision parent, Condition condition) Throws IllegalStateException as start nodes cannot have parents.
void	clearParents() Does nothing as start nodes cannot have parents.
NodeBase	getChild() Returns the child of this Start object.
List<NodeBase>	getChildren() Returns all the children (whether conditional or not) of this NodeBase object.
protected void	removeChild(NodeBase child) Removes the specified child from this NodeBase object.
void	removeParent(NodeBase parent) Throws IllegalStateException as start nodes cannot have parents.

Methods inherited from class org.apache.oozie.fluentjob.api.dag.NodeBase

getName

Methods inherited from class java.lang.Object

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

Constructor Detail

Start

public Start(String name)

Create a new start node with the given name.

Parameters:

name - The name of the new start node.

Method Detail

getChild

public NodeBase getChild()

Returns the child of this Start object.

Returns:

the child NodeBase

addParent

public void addParent(NodeBase parent)

Throws IllegalStateException as start nodes cannot have parents.

Specified by:

addParent in class NodeBase

Parameters:

parent - The new parent of this NodeBase object.

Throws:

IllegalStateException - always.

addParentWithCondition

public void addParentWithCondition(Decision parent,
                                   Condition condition)

Throws IllegalStateException as start nodes cannot have parents.

Specified by:

addParentWithCondition in class NodeBase

Parameters:

parent - The new parent of this NodeBase object.

condition - The condition which must be true in addition the parent completing successfully for this node to be executed.

Throws:

IllegalStateException - always.

addParentDefaultConditional

public void addParentDefaultConditional(Decision parent)

Throws IllegalStateException as start nodes cannot have parents.

Specified by:

addParentDefaultConditional in class NodeBase

Parameters:

parent - The new parent of this NodeBase object.

Throws:

IllegalStateException - always.

removeParent

public void removeParent(NodeBase parent)

Throws IllegalStateException as start nodes cannot have parents.

Specified by:

removeParent in class NodeBase

Parameters:

parent - The new parent of this NodeBase object.

Throws:

IllegalStateException - always.

clearParents

public void clearParents()

Does nothing as start nodes cannot have parents.

Specified by:

clearParents in class NodeBase

getChildren

public List<NodeBase> getChildren()

Description copied from class: NodeBase

Returns all the children (whether conditional or not) of this NodeBase object.

Specified by:

getChildren in class NodeBase

Returns:

All the children (whether conditional or not) of this NodeBase object.

addChild

protected void addChild(NodeBase child)

Description copied from class: NodeBase

Adds a child to this NodeBase object. This method should only be used in the implementation of the NodeBase.addParent(NodeBase) method of a subclass of NodeBase, so that whenever a node is assigned a new parent, the parent also knows about the child.

Specified by:

addChild in class NodeBase

Parameters:

child - The node to be added as the child of this NodeBase.

removeChild

protected void removeChild(NodeBase child)

Description copied from class: NodeBase

Removes the specified child from this NodeBase object. This method should only be used in the implementation of the NodeBase.removeParent(NodeBase) method of a subclass of NodeBase, so that whenever a child is removed from a node, the parent also knows about the child having been removed.

Specified by:

removeChild in class NodeBase

Parameters:

child - The node to be removed as the child of this NodeBase.