| java.lang.Object
 org.geotools.dbffile.Dbf
| Dbf | | public class Dbf implements DbfConsts(Code) | | This class represents a DBF (or DBase) file.
Construct it with a URL or File (including the .dbf)
this causes the header and field definitions to be read.
Later queries return rows or columns of the database.
If a URL is specified then the whole file is read into memory
if a file is specified then a randomAccess system is used.
author:
Ian Turton Centre for
author:
Computaional Geography, University of Leeds, LS2 9JT, 1998.
author:
author:
mod to getStringCol by James Macgill. |
| Inner Class :class DbfFileHeader | |
| DEBUG | | final static boolean DEBUG(Code) | | |
| data_offset | | int data_offset(Code) | | |
| filesizenumfields | | int filesizenumfields(Code) | | |
| last_update_dlast_update_mlast_update_y | | int last_update_dlast_update_mlast_update_y(Code) | | |
| GetNextDbfRec | | public StringBuffer GetNextDbfRec() throws java.io.IOException(Code) | | gets the next record and returns it as a string. This method works on
a sequential stream and can not go backwards. Only useful if you want
to read the whole file in one.
exception:
java.io.IOException - on read error. |
| ParseRecord | | public Vector ParseRecord(StringBuffer rec)(Code) | | Parses the record stored in the StringBuffer rec into a vector of
objects
Parameters:
rec - the record to be parsed. |
| getFieldNumber | | public int getFieldNumber(String name)(Code) | | looks up the field number for the given named column
Parameters:
name - A String for the name to look up int The col number for the field, -1 if field could not be found |
| getFieldType | | public char getFieldType(int col)(Code) | | |
| getFileSize | | public int getFileSize()(Code) | | Returns the size of the database file.
|
| getFloatCol | | public Float[] getFloatCol(int col, int start, int end) throws DbfFileException, java.io.IOException(Code) | | Fetches a part column of Floats from the database file.
Parameters:
col - - the column to fetch
Parameters:
start - - the row to start fetching from
Parameters:
end - - the row to stop fetching at.
exception:
java.io.IOException - - on read error
exception:
DbfFileException - - column is not an Integer. |
| getIntegerCol | | public Integer[] getIntegerCol(int col, int start, int end) throws java.io.IOException, DbfFileException(Code) | | Fetches a part column of Integers from the database file.
Parameters:
col - - the column to fetch
Parameters:
start - - the row to start fetching from
Parameters:
end - - the row to stop fetching at.
exception:
java.io.IOException - - on read error
exception:
DbfFileException - - column is not an Integer. |
| getLastRec | | public int getLastRec()(Code) | | Returns the number of records in the database file.
|
| getLastUpdate | | public String getLastUpdate()(Code) | | Returns the date of the last update of the file as a string.
|
| getNumFields | | public int getNumFields()(Code) | | Returns the number of fields in the records in the database file.
|
| getRecSize | | public int getRecSize()(Code) | | Returns the size of the records in the database file.
|
| getStringCol | | public String[] getStringCol(int col, int start, int end) throws DbfFileException, java.io.IOException(Code) | | Fetches a part column of Strings from the database file.
Parameters:
col - - the column to fetch
Parameters:
start - - the row to start fetching from
Parameters:
end - - the row to stop fetching at.
exception:
java.io.IOException - - on read error
exception:
DbfFileException - - column is not an Integer. |
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