| java.lang.Object
 org.geotools.data.shapefile.dbf.DbaseFileReader
All known Subclasses: org.geotools.data.shapefile.dbf.IndexedDbaseFileReader,
| DbaseFileReader | | public class DbaseFileReader (Code) | | A DbaseFileReader is used to read a dbase III format file.
The general use of this class is:
FileChannel in = new FileInputStream("thefile.dbf").getChannel();
DbaseFileReader r = new DbaseFileReader( in ) Object[] fields = new
Object[r.getHeader().getNumFields()]; while (r.hasNext()) {
r.readEntry(fields); // do stuff } r.close();
EACH CALL TO readEntry OR readRow ADVANCES THE FILE!
An example of using the Row method of reading:
FileChannel in = new FileInputStream("thefile.dbf").getChannel();
DbaseFileReader r = new DbaseFileReader( in ) int fields =
r.getHeader().getNumFields(); while (r.hasNext()) { DbaseFileReader.Row row =
r.readRow(); for (int i = 0; i < fields; i++) { // do stuff Foo.bar(
row.read(i) ); } } r.close();
author:
Ian Schneider |
| Inner Class :final public class Row | |
| buffer | | ByteBuffer buffer(Code) | | |
| charBuffer | | CharBuffer charBuffer(Code) | | |
| currentOffset | | protected int currentOffset(Code) | | |
| decoder | | CharsetDecoder decoder(Code) | | |
| fieldLengths | | int[] fieldLengths(Code) | | |
| fieldTypes | | char[] fieldTypes(Code) | | |
| randomAccessEnabled | | final protected boolean randomAccessEnabled(Code) | | |
| useMemoryMappedBuffer | | protected boolean useMemoryMappedBuffer(Code) | | |
| DbaseFileReader | | public DbaseFileReader(ReadableByteChannel channel, boolean useMemoryMappedBuffer) throws IOException(Code) | | Creates a new instance of DBaseFileReader
Parameters:
channel - The readable channel to use.
throws:
IOException - If an error occurs while initializing. |
| DbaseFileReader | | public DbaseFileReader(ReadableByteChannel channel, boolean useMemoryMappedBuffer, Charset charset) throws IOException(Code) | | Creates a new instance of DBaseFileReader
Parameters:
channel - The readable channel to use.
throws:
IOException - If an error occurs while initializing. |
| close | | public void close() throws IOException(Code) | | Clean up all resources associated with this reader.Highly recomended.
throws:
IOException - If an error occurs. |
| getHeader | | public DbaseFileHeader getHeader()(Code) | | Get the header from this file. The header is read upon instantiation.
The header associated with this file or null if an erroroccurred. |
| hasNext | | public boolean hasNext()(Code) | | Query the reader as to whether there is another record.
True if more records exist, false otherwise. |
| readEntry | | public Object[] readEntry() throws IOException(Code) | | Get the next record (entry). Will return a new array of values.
throws:
IOException - If an error occurs. A new array of values. |
| readEntry | | public Object[] readEntry(Object[] entry, int offset) throws IOException(Code) | | Copy the next record into the array starting at offset.
Parameters:
entry - Th array to copy into.
Parameters:
offset - The offset to start at
throws:
IOException - If an error occurs. The same array passed in. |
| readEntry | | public Object[] readEntry(Object[] entry) throws IOException(Code) | | Copy the next entry into the array.
Parameters:
entry - The array to copy into.
throws:
IOException - If an error occurs. The same array passed in. |
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