org.apache.oozie.fluentjob.api.dag

Class Decision

java.lang.Object

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

org.apache.oozie.fluentjob.api.dag.Decision

public class Decision
extends NodeBase

A class representing decision 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
Decision(String name) Create a new decision 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) Adds the provided node as a parent of this node.
void	addParentDefaultConditional(Decision parent) Adds the provided node as the default conditional parent of this node.
void	addParentWithCondition(Decision parent, Condition condition) Adds the provided node as a conditional parent of this node.
void	clearParents() Removes all parents (whether or not conditional) of this NodeBase object.
List<NodeBase>	getChildren() Returns all the children (whether conditional or not) of this NodeBase object.
List<DagNodeWithCondition>	getChildrenWithConditions() Returns the children of this Decision node together with their conditions (all children are conditional), including the default child.
NodeBase	getDefaultChild() Returns the default child of this Decision node.
NodeBase	getParent() Returns the parent of this node.
protected void	removeChild(NodeBase child) Removes the specified child from this NodeBase object.
void	removeParent(NodeBase parent) Removes a parent (whether or not conditional).

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

Decision

public Decision(String name)

Create a new decision node with the given name.

Parameters:

name - The name of the new decision node.

Method Detail

getParent

public NodeBase getParent()

Returns the parent of this node.

Returns:

The parent of this node.

addParent

public void addParent(NodeBase parent)

Adds the provided node as a parent of this node.

Specified by:

addParent in class NodeBase

Parameters:

parent - The new parent of this node.

Throws:

IllegalStateException - if this node already has a parent.

addParentWithCondition

public void addParentWithCondition(Decision parent,
                                   Condition condition)

Adds the provided node as a conditional parent of this node.

Specified by:

addParentWithCondition in class NodeBase

Parameters:

parent - The new conditional parent of this node.

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

Throws:

IllegalStateException - if this node already has a parent.

addParentDefaultConditional

public void addParentDefaultConditional(Decision parent)

Adds the provided node as the default conditional parent of this node.

Specified by:

addParentDefaultConditional in class NodeBase

Parameters:

parent - The new conditional parent of this node.

Throws:

IllegalStateException - if this node already has a parent.

removeParent

public void removeParent(NodeBase parent)

Description copied from class: NodeBase

Removes a parent (whether or not conditional).

Specified by:

removeParent in class NodeBase

Parameters:

parent - The parent to remove.

clearParents

public void clearParents()

Description copied from class: NodeBase

Removes all parents (whether or not conditional) of this NodeBase object.

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.

getChildrenWithConditions

public List<DagNodeWithCondition> getChildrenWithConditions()

Returns the children of this Decision node together with their conditions (all children are conditional), including the default child.

Returns:

The conditional children of this Decision node together with their conditions, including the default child.

getDefaultChild

public NodeBase getDefaultChild()

Returns the default child of this Decision node.

Returns:

The default child of this Decision node.

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.