com.github.basking2.sdsai.dsds.node

Class Node<USERKEY,STOREKEY>

java.lang.Object

com.github.basking2.sdsai.dsds.node.Node<USERKEY,STOREKEY>

Type Parameters:

USERKEY - The user's key.

STOREKEY - The key in the data storage medium.

All Implemented Interfaces:

java.io.Serializable

public class Node<USERKEY,STOREKEY>
extends java.lang.Object
implements java.io.Serializable

The basic object that is persisted to a large distributed storage via a NodeStore. Notice that a Node does not posses any knowlede of the key it is stored under. Only it's children or ancestor nodes.

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
Node() Create a Node that can store a single ancestor, child, and data object.
Node(int childCap) Create a Node that can store a number of children, one data keys and one ancestor.
Node(int childCap, int dataCap) Create a Node that can store a number of children and data keys and has only one ancestor.
Node(int childCap, int dataCap, int ancestorsCap) Create a Node.

Method Summary

Modifier and Type	Method and Description
java.util.List<STOREKEY>	getAncestors()
int	getAncestorsCap()
int	getChildCap()
java.util.List<STOREKEY>	getChildren()
java.util.List<USERKEY>	getData()
int	getDataCap()
boolean	isAncestorsFull()
boolean	isChildrenFull()
boolean	isDataFull()
boolean	isEmpty() Return true of this node has no data.
boolean	isLeaf() Return true if this node has no children.
boolean	isRoot() Return true of this node has no ancestors.
void	setAncestorCap(int ancestorsCap)
void	setAncestors(java.util.List<STOREKEY> ancestors)
void	setChildCap(int childCap)
void	setChildren(java.util.List<STOREKEY> children)
void	setData(java.util.List<USERKEY> data)
void	setDataCap(int dataCap)
java.lang.String	toString()

Methods inherited from class java.lang.Object

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

Constructor Detail

Node

public Node()

Create a Node that can store a single ancestor, child, and data object.

Node

public Node(int childCap)

Create a Node that can store a number of children, one data keys and one ancestor.

Parameters:

childCap - The number of children this Node may have.

Node

public Node(int childCap,
            int dataCap)

Create a Node that can store a number of children and data keys and has only one ancestor.

Parameters:

childCap - The number of children this Node may have.

dataCap - The number of data entries this Node may have.

Node

public Node(int childCap,
            int dataCap,
            int ancestorsCap)

Create a Node.

Parameters:

childCap - The number of children this Node may have.

dataCap - The number of data elements this Node may have.

ancestorsCap - The number of ancestors this node may have.

Method Detail

getData

public java.util.List<USERKEY> getData()

getAncestors

public java.util.List<STOREKEY> getAncestors()

getChildren

public java.util.List<STOREKEY> getChildren()

getDataCap

public int getDataCap()

getChildCap

public int getChildCap()

getAncestorsCap

public int getAncestorsCap()

isDataFull

public boolean isDataFull()

isChildrenFull

public boolean isChildrenFull()

isAncestorsFull

public boolean isAncestorsFull()

setData

public void setData(java.util.List<USERKEY> data)

setChildren

public void setChildren(java.util.List<STOREKEY> children)

setAncestors

public void setAncestors(java.util.List<STOREKEY> ancestors)

setDataCap

public void setDataCap(int dataCap)

setChildCap

public void setChildCap(int childCap)

setAncestorCap

public void setAncestorCap(int ancestorsCap)

isEmpty

public boolean isEmpty()

Return true of this node has no data.

Returns:

true of this node has no data.

isLeaf

public boolean isLeaf()

Return true if this node has no children.

Returns:

true if this node has no children.

isRoot

public boolean isRoot()

Return true of this node has no ancestors.

Returns:

true if this node has no ancestors.

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object