Java Doc for IndexedFidReader.java in  » GIS » GeoTools-2.4.1 » org » geotools » data » shapefile » indexed » 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.indexed   Source Cross Reference   Class Diagram   Java Document (Java Doc)   java.lang.Object    org.geotools.data.shapefile.indexed.IndexedFidReader IndexedFidReader public class IndexedFidReader implements FIDReader(Code) This object reads from a file the fid of a feature in a shapefile. author:    Jesse Field Summary  StreamLogging streamLogger      Constructor Summary public   IndexedFidReader(String typeName, ReadableByteChannel readChannel)      public   IndexedFidReader(String typeName, RecordNumberTracker reader, ReadableByteChannel readChannel)      Method Summary public  void close()      public  int currentIndex()      Returns the record number of the feature in the shx or shp that is identified by the the last fid returned by next(). public  long findFid(String fid)      Returns the offset to the location in the SHX file that the fid identifies. public  long getCount()      Returns the number of Fid Entries in the file. public  int getRemoves()      Returns the number of features that have been removed since the fid index was regenerated. public  void goTo(long recno)      public  boolean hasNext()      public  String next()       long search(long desired, long minRec, long maxRec, long predictedRec)      Searches for the desired record. Parameters:   desired - the id of the desired record. Parameters:   minRec - the last record that is known to be before thedesired record. Parameters:   maxRec - the first record that is known to be after thedesired record. Parameters:   predictedRec - the record that is predicted to be the desiredrecord. Field Detail streamLogger StreamLogging streamLogger(Code) Constructor Detail IndexedFidReader public IndexedFidReader(String typeName, ReadableByteChannel readChannel) throws IOException(Code) IndexedFidReader public IndexedFidReader(String typeName, RecordNumberTracker reader, ReadableByteChannel readChannel) throws IOException(Code) Method Detail close public void close() throws IOException(Code) currentIndex public int currentIndex()(Code) Returns the record number of the feature in the shx or shp that is identified by the the last fid returned by next(). Returns the record number of the feature in the shx or shp thatis identified by the the last fid returned by next(). throws:   NoSuchElementException - DOCUMENT ME! findFid public long findFid(String fid) throws IOException(Code) Returns the offset to the location in the SHX file that the fid identifies. This search take logN time. Parameters:   fid - the fid to find. Returns the record number of the record in the SHX file that thefid identifies. Will return -1 if the fid was not found. throws:   IOException - throws:   IllegalArgumentException - DOCUMENT ME! getCount public long getCount()(Code) Returns the number of Fid Entries in the file. Returns the number of Fid Entries in the file. getRemoves public int getRemoves()(Code) Returns the number of features that have been removed since the fid index was regenerated. Returns the number of features that have been removed since thefid index was regenerated. goTo public void goTo(long recno) throws IOException(Code) hasNext public boolean hasNext() throws IOException(Code) next public String next() throws IOException(Code) search long search(long desired, long minRec, long maxRec, long predictedRec) throws IOException(Code) Searches for the desired record. Parameters:   desired - the id of the desired record. Parameters:   minRec - the last record that is known to be before thedesired record. Parameters:   maxRec - the first record that is known to be after thedesired record. Parameters:   predictedRec - the record that is predicted to be the desiredrecord. returns the record number of the feature in the shx file. throws:   IOException - 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)