Java Doc for FileSystemNode.java in » GIS » GeoTools-2.4.1 » org » geotools » index » rtree » cachefs » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » GIS » GeoTools 2.4.1 » org.geotools.index.rtree.cachefs

Source Cross Reference

Class Diagram

Java Document (Java Doc)

java.lang .Object

org.geotools.index.rtree .Node

org.geotools.index.rtree.cachefs .FileSystemNode

FileSystemNode
public class FileSystemNode extends Node (Code)
	DOCUMENT ME! author: Tommaso Nolli

Field Summary
final static int	ENTRY_SIZE

Constructor Summary
public	FileSystemNode(Parameters params)
public	FileSystemNode(Parameters params, long offset)

Method Summary
protected void	doSave()
public boolean	equals(Object obj)
protected void	finalize()
public void	flush() Flushes this node to disk Node page structure: 1 * byte --> 1 = leaf, 2 = non leaf 1 * long --> parent offset entries len * 40 --> the entries each entry is as follow 4 * double --> the bounding box (x1, x2, y1, y2) 1 * long --> the pointer (-1 if leaf) Data pages are immediatly after leaf Node pages.
void	free()
protected Entry	getEntry(Node node)
long	getOffset()
public Node	getParent()
public void	setParent(Node node)

Field Detail

ENTRY_SIZE
final static int ENTRY_SIZE(Code)

Constructor Detail

FileSystemNode
public FileSystemNode(Parameters params)(Code)
	DOCUMENT ME! Parameters: params -

FileSystemNode
public FileSystemNode(Parameters params, long offset) throws IOException, TreeException(Code)
	DOCUMENT ME! Parameters: params - Parameters: offset - DOCUMENT ME! throws: IOException - DOCUMENT ME! throws: TreeException - DOCUMENT ME!

Method Detail

doSave
protected void doSave() throws TreeException(Code)
	See Also: org.geotools.rtree.Node.save

equals
public boolean equals(Object obj)(Code)
	See Also: java.lang.Object.equals(java.lang.Object)

finalize
protected void finalize() throws Throwable(Code)
	Force this node flush throws: Throwable - DOCUMENT ME!

flush

public void flush() throws TreeException(Code)

Flushes this node to disk

 Node page structure:
 1 * byte         --> 1 = leaf, 2 = non leaf
 1 * long         --> parent offset
 entries len * 40 --> the entries
 each entry is as follow
 4 * double --> the bounding box (x1, x2, y1, y2)
 1 * long   --> the pointer (-1 if leaf)
 Data pages are immediatly after leaf Node pages.

throws:
TreeException - DOCUMENT ME!

free
void free() throws IOException(Code)
	DOCUMENT ME! throws: IOException -

getEntry
protected Entry getEntry(Node node)(Code)
	See Also: org.geotools.rtree.Node.getEntry(org.geotools.rtree.Node)

getOffset
long getOffset()(Code)
	DOCUMENT ME!

getParent
public Node getParent() throws TreeException(Code)
	See Also: org.geotools.rtree.Node.getParent

setParent
public void setParent(Node node)(Code)
	See Also: org.geotools.rtree.Node.setParent(org.geotools.rtree.Node)

Fields inherited from org.geotools.index.rtree.Node

protected Envelope bounds(Code)(Java Doc)
protected Entry[] entries(Code)(Java Doc)
protected int entriesCount(Code)(Java Doc)
protected boolean isChanged(Code)(Java Doc)
protected int maxNodeEntries(Code)(Java Doc)

Methods inherited from org.geotools.index.rtree.Node

final public void addEntry(Entry entry)(Code)(Java Doc)
public void boundsChanged(Entry e)(Code)(Java Doc)
public void clear()(Code)(Java Doc)
abstract protected void doSave() throws TreeException(Code)(Java Doc)
public Envelope getBounds()(Code)(Java Doc)
public Collection getEntries()(Code)(Java Doc)
public int getEntriesCount()(Code)(Java Doc)
public Entry getEntry(int n)(Code)(Java Doc)
abstract protected Entry getEntry(Node node)(Code)(Java Doc)
abstract public Node getParent() throws TreeException(Code)(Java Doc)
public boolean isLeaf()(Code)(Java Doc)
final public void removeEntry(Entry entry)(Code)(Java Doc)
final public void save() throws TreeException(Code)(Java Doc)
public void setLeaf(boolean b)(Code)(Java Doc)
abstract public void setParent(Node node)(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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