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Java Source Code / Java Documentation » Search Engine » Jofti » com.jofti.btree

Source Cross Reference

Class Diagram

Java Document (Java Doc)

java.lang .Object

com.jofti.btree .Node

com.jofti.btree .AbstractLeafNode

com.jofti.btree .PagedLeafNode

PagedLeafNode

public class PagedLeafNode extends AbstractLeafNode implements Leaf,Serializable(Code)

A version of a LeafNode that pages its entries to and from disk. The entries are managed in an IPage which has operations performed upon it. Storage and retrieval is performed by an IStoreManager . This object uses the IPage as its transfer object.

The Node does not keep a reference to the IPage inbetween operations and so a retrieval from the IStoreManager is required each time. The Manager is free to cache these objects in order to make this operation more performant.

author:
steve Woodcock
version:
1.36

Field Summary
IStoreKey	key
transient IStoreManager	manager
Page	pageData

Constructor Summary
public	PagedLeafNode(IStoreManager manager, IStoreKey key)

Method Summary
public boolean	contains(Comparable value)
public boolean	deleteEntry(NodeEntry entry)
public boolean	equals(Object obj)
public Object[]	getEntries()
public LeafNodeEntry	getEntry(Comparable value)
public synchronized IStoreKey	getKey()
protected IPage	getPage()
public int	hashCode()
protected int	indexedBinaryLocate(IPage page, Object obj)
protected LeafNodeEntry	indexedBinaryRetrieve(IPage page, Object obj)
public Object[]	insertEntry(NodeEntry entry)
public boolean	isLeaf()
protected Object[]	realGetEntries()
protected void	removeEntries() Removes all the entries in the node and propogate this to the underlying IStoreManager .
protected void	removePage(IPage page)
public void	setEntries(Object[] temp)
public synchronized void	setKey(IStoreKey key)
protected void	setPage(IPage page)
public void	setPageEntries(IPage temp) Sets this node's page entries to be the IPage passed in.
public Node	splitNode(Object[] entries)

Field Detail

key
IStoreKey key(Code)

manager
transient IStoreManager manager(Code)

pageData
Page pageData(Code)

Constructor Detail

PagedLeafNode
public PagedLeafNode(IStoreManager manager, IStoreKey key)(Code)

Method Detail

contains
public boolean contains(Comparable value)(Code)

deleteEntry
public boolean deleteEntry(NodeEntry entry)(Code)

equals
public boolean equals(Object obj)(Code)

getEntries
public Object[] getEntries()(Code)

getEntry
public LeafNodeEntry getEntry(Comparable value)(Code)

getKey
public synchronized IStoreKey getKey()(Code)

getPage
protected IPage getPage()(Code)

hashCode
public int hashCode()(Code)

indexedBinaryLocate
protected int indexedBinaryLocate(IPage page, Object obj)(Code)

indexedBinaryRetrieve
protected LeafNodeEntry indexedBinaryRetrieve(IPage page, Object obj)(Code)

insertEntry
public Object[] insertEntry(NodeEntry entry) throws JoftiException(Code)

isLeaf
public boolean isLeaf()(Code)

realGetEntries
protected Object[] realGetEntries()(Code)

removeEntries
protected void removeEntries()(Code)
	Removes all the entries in the node and propogate this to the underlying IStoreManager .

removePage
protected void removePage(IPage page)(Code)

setEntries
public void setEntries(Object[] temp)(Code)

setKey
public synchronized void setKey(IStoreKey key)(Code)

setPage
protected void setPage(IPage page) throws JoftiException(Code)

setPageEntries
public void setPageEntries(IPage temp)(Code)
	Sets this node's page entries to be the IPage passed in. Parameters: temp -

splitNode
public Node splitNode(Object[] entries) throws JoftiException(Code)

Fields inherited from com.jofti.btree.AbstractLeafNode

protected boolean deleted(Code)(Java Doc)
protected NodeLink nextNode(Code)(Java Doc)
protected IndexNodeEntry parentKey(Code)(Java Doc)
protected Comparable rightValue(Code)(Java Doc)

Methods inherited from com.jofti.btree.AbstractLeafNode

public LeafNodeEntry getEntry(Comparable value)(Code)(Java Doc)
public int getEntryNumber()(Code)(Java Doc)
public NodeLink getLinkNode()(Code)(Java Doc)
public Comparable getRightValue()(Code)(Java Doc)
protected LeafNodeEntry indexedBinaryRetrieve(Object[] list1, Object obj)(Code)(Java Doc)
public boolean isDeleted()(Code)(Java Doc)
public boolean isEmpty()(Code)(Java Doc)
public boolean isUnderFull()(Code)(Java Doc)
abstract protected Object[] realGetEntries()(Code)(Java Doc)
protected void resetNextNode()(Code)(Java Doc)
public void setDeleted(boolean deleted)(Code)(Java Doc)
public void setLinkNode(NodeLink node)(Code)(Java Doc)
public void setRightValue(Comparable value)(Code)(Java Doc)

Fields inherited from com.jofti.btree.Node

protected int entryNumber(Code)(Java Doc)
final public ReadWriteLock nodeLock(Code)(Java Doc)

Methods inherited from com.jofti.btree.Node

public ReadWriteLock getNodeLock()(Code)(Java Doc)
public boolean isLeaf()(Code)(Java Doc)
protected Object[] split(Object[] tempEntries, int entryNumber)(Code)(Java Doc)

Methods inherited from java.lang.Object

native protected Object clone() throws CloneNotSupportedException(Code)(Java Doc)
public boolean equals(Object obj)(Code)(Java Doc)
protected void finalize() throws Throwable(Code)(Java Doc)
final native public Class getClass()(Code)(Java Doc)
native public int hashCode()(Code)(Java Doc)
final native public void notify()(Code)(Java Doc)
final native public void notifyAll()(Code)(Java Doc)
public String toString()(Code)(Java Doc)
final native public void wait(long timeout) throws InterruptedException(Code)(Java Doc)
final public void wait(long timeout, int nanos) throws InterruptedException(Code)(Java Doc)
final public void wait() throws InterruptedException(Code)(Java Doc)

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