AbstractWKBFactory (WKB For Java 1.0-RC1 API)

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org.wkb4j.factories
Class AbstractWKBFactory

java.lang.Object
  |
  +--org.wkb4j.factories.AbstractWKBFactory

All Implemented Interfaces:: WKBFactory, WKBGeometryTypes

Direct Known Subclasses:: JTSFactory, LoggingWKBFactory, OpenMapFactory, PostGISFactory

public abstract class AbstractWKBFactory
extends java.lang.Object
implements WKBFactory, WKBGeometryTypes

Classes implementing WKBFactory should extend this class. In particular, this class validates the WKBFormat, making sure that things happen only when they should. Among other things, it checks that geometrical objects are correctly nested: Points can only exist in LineString and LinearRing objects, GeometryCollection can contain any type of objects... This is somehow similar to a "validating" XML parser. Creation date: 6 juil. 2002 22:07:15

Version:: $Revision: 1.9 $ $Date: 2003/08/02 23:52:18 $
Author:: David Garnier

Field Summary

protected int depthPointer
          Points to the top of the stack.

protected int geometryDepth


protected boolean inUnit


protected boolean inWork


protected static org.apache.log4j.Logger log


protected int[] typeStack


protected int[] values


protected java.lang.String[] words


Fields inherited from interface org.wkb4j.engine.WKBGeometryTypes

linearRing, wkbGeometryCollection, wkbLineString, wkbMultiLineString, wkbMultiPoint, wkbMultiPolygon, wkbPoint, wkbPolygon

Constructor Summary

AbstractWKBFactory()


Method Summary

void abortGeometryCollection()
          Signals a malformed GeometryCollection.

void abortLinearRing()
          Signals a malformed LinearRing.

void abortLineString()
          Signals a malformed LineString.

void abortMultiLineString()
          Signals a malformed MultiLineString.

void abortMultiPoint()
          Signals a malformed MultiPoint.

void abortMultiPolygon()
          Signals a malformed MultiPolygon.

void abortPoint()
          Signals a malformed Point.

void abortPolygon()
          Signals a malformed Polygon.

void abortUnit()
          Signals the problematic stop of the transcription process for a Geometry.

void abortWork()
          Signals the problematic stop of the transcription process for a buffer of WKB data.

boolean addPoints(double[] points)
          points is an array of doubles reprensentings coordinates.

boolean addPoints3D(double[] points)


private void advancePointer(int type)


boolean beginGeometryCollection(int count)
          Signals the beginning of a new GeometryCollection.

boolean beginLinearRing(int count)
          Signals the beginning of a new LinearRing.

boolean beginLineString(int count)
          Signals the beginning of a new LineString

boolean beginMultiLineString(int count)
          Signals the beginning of a new MultiLineString.

boolean beginMultiPoint(int count)
          Signals the beginning of a new MultiPoint.

boolean beginMultiPolygon(int count)
          Signals the beginning of a new MultiPolygon.

boolean beginPoint()
          Signals the beginning of a new Point

boolean beginPolygon(int count)
          Signals the beginning of a new Polygon.

void beginUnit(int srid)
          Signals the beginning of the transcription process for a Geometry.

void beginUnit(java.lang.String[] words, int[] values)
          Signals the beginning of the transcription process for a Geometry.

void beginWork()
          Signals the beginning of the transcription process for a buffer of WKB data.

boolean endGeometryCollection()
          Signals the end of a GeometryCollection.

boolean endLinearRing()
          Signals the end of a LinearRing.

boolean endLineString()
          Signals the end of a LineString.

boolean endMultiLineString()
          Signals the end of a MultiLineString.

boolean endMultiPoint()
          Signals the end of a MultiPoint.

boolean endMultiPolygon()
          Signals the end of a MultiPolygon.

boolean endPoint()
          Signals the end of a Point.

boolean endPolygon()
          Signals the end of a Polygon.

void endUnit()
          Signals the end of the transcription process for a Geometry.

void endWork()
          Signals the end of the transcription process for a buffer of WKB data.

int[] getValues()
          Returns the values.

java.lang.String[] getWords()
          Returns the words.

protected void init()


boolean newGeometryCollectionComponent()
          Signals that a new component for the geometry factory is about to processed OR that all components has been used.

abstract void reset()


private boolean rewindPointer(int type)


protected void setValues(int[] values)
          Sets the values.

protected void setWords(java.lang.String[] words)
          Sets the words.

Methods inherited from class java.lang.Object

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

Field Detail

log

protected static org.apache.log4j.Logger log

geometryDepth

protected final int geometryDepth

See Also:: Constant Field Values

depthPointer

protected int depthPointer

Points to the top of the stack.

typeStack

protected int[] typeStack

inWork

protected boolean inWork

inUnit

protected boolean inUnit

words

protected java.lang.String[] words

values

protected int[] values

Constructor Detail

AbstractWKBFactory

public AbstractWKBFactory()

Method Detail