Java Doc for IndexFile.java in  » GIS » GeoTools-2.4.1 » org » geotools » data » shapefile » shp » 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.data.shapefile.shp   Source Cross Reference   Class Diagram   Java Document (Java Doc)   java.lang.Object    org.geotools.data.shapefile.shp.IndexFile IndexFile public class IndexFile (Code) IndexFile parser for .shx files. For now, the creation of index files is done in the ShapefileWriter. But this can be used to access the index. For details on the index file, see "ESRI(r) Shapefile - A Technical Description" 'An ESRI White Paper . May 1997' author:    Ian Schneider Constructor Summary public   IndexFile(ReadableByteChannel channel)      Load the index file from the given channel. public   IndexFile(ReadableByteChannel channel, boolean useMemoryMappedBuffer)      Load the index file from the given channel. Method Summary public  void close()      protected  void finalize()      public  int getContentLength(int index)      Get the content length of the given record in bytes, not 16 bit words. public  ShapefileHeader getHeader()      Get the header of this index file. public  int getOffset(int index)      Get the offset of the record (in 16-bit words). public  int getOffsetInBytes(int index)      Get the offset of the record (in real bytes, not 16-bit words). public  int getRecordCount()      Get the number of records in this index. Constructor Detail IndexFile public IndexFile(ReadableByteChannel channel) throws IOException(Code) Load the index file from the given channel. Parameters:   channel - The channel to read from. throws:   IOException - If an error occurs. IndexFile public IndexFile(ReadableByteChannel channel, boolean useMemoryMappedBuffer) throws IOException(Code) Load the index file from the given channel. Parameters:   channel - The channel to read from. throws:   IOException - If an error occurs. Method Detail close public void close() throws IOException(Code) finalize protected void finalize() throws Throwable(Code) See Also:   java.lang.Object.finalize getContentLength public int getContentLength(int index) throws IOException(Code) Get the content length of the given record in bytes, not 16 bit words. Parameters:   index - The index, from 0 to getRecordCount - 1 The lengh in bytes of the record. throws:   IOException - getHeader public ShapefileHeader getHeader()(Code) Get the header of this index file. The header of the index file. getOffset public int getOffset(int index) throws IOException(Code) Get the offset of the record (in 16-bit words). Parameters:   index - The index, from 0 to getRecordCount - 1 The offset in 16-bit words. throws:   IOException - getOffsetInBytes public int getOffsetInBytes(int index) throws IOException(Code) Get the offset of the record (in real bytes, not 16-bit words). Parameters:   index - The index, from 0 to getRecordCount - 1 The offset in bytes. throws:   IOException - getRecordCount public int getRecordCount()(Code) Get the number of records in this index. The number of records. 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)