oracle.spatial.util

Class DBFReaderJGeom

java.lang.Object

oracle.spatial.util.DBFReaderJGeom

public class DBFReaderJGeom
extends java.lang.Object

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	DBFReaderJGeom.CharacterColumn
static class	DBFReaderJGeom.DateColumn
static class	DBFReaderJGeom.LogicalColumn
static class	DBFReaderJGeom.NumericColumn
static class	DBFReaderJGeom.RecordColumn

Constructor Summary

Constructors

Constructor and Description
DBFReaderJGeom()
DBFReaderJGeom(java.lang.String name) construct an object out of the specified shapefile's DBF file.

Method Summary

Modifier and Type	Method and Description
void	closeDBF() close this dbfile.
java.lang.String	getFieldData(int ith, byte[] rec) get the value string for the ith field in the given record.
int	getFieldLength(int nth) return the length of the specified field.
java.lang.String	getFieldName(int ith) returns the name for the ith field of records in this file.
byte	getFieldType(int ith) get the type for the ith field in a record.
byte[]	getRecord(int nth) retrieve the nth record in the file.
int	numFields() return the number of fields in each record
int	numRecords() return the number of records in the DBF file.
void	openDBF(java.lang.String name) Given a DBF file's name, open the file and read the header info.
void	print() nicely print out the general information of this shapefile.
void	readCodePage(java.lang.String name) Given a DBF file's name, open the (optional) .cpg file and read the character encoding value.
int	recordSize() return the record size in the DBF file

Methods inherited from class java.lang.Object

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

Constructor Detail

DBFReaderJGeom

public DBFReaderJGeom()

DBFReaderJGeom

public DBFReaderJGeom(java.lang.String name)
               throws java.io.IOException

construct an object out of the specified shapefile's DBF file.

Throws:

java.io.IOException

Method Detail

readCodePage

public void readCodePage(java.lang.String name)
                  throws java.io.IOException

Given a DBF file's name, open the (optional) .cpg file and read the character encoding value. Use this value in GetFieldData() to explicitly set the character set.

Throws:

java.io.IOException

openDBF

public void openDBF(java.lang.String name)
             throws java.io.IOException

Given a DBF file's name, open the file and read the header info. Records can be read afterwards.

Throws:

java.io.IOException

closeDBF

public void closeDBF()
              throws java.io.IOException

close this dbfile.

Throws:

java.io.IOException

numRecords

public int numRecords()

return the number of records in the DBF file.

numFields

public int numFields()

return the number of fields in each record

recordSize

public int recordSize()

return the record size in the DBF file

getRecord

public byte[] getRecord(int nth)

retrieve the nth record in the file. return the pointer to the beginning of the record. the recordDeform method can be called on this pointer to interpret individual fields.

getFieldData

public java.lang.String getFieldData(int ith,
                                     byte[] rec)

get the value string for the ith field in the given record. This is an ascii representation of this field's actual value. For fields with type 'I' or 'N', Use atoi() or strtod() accordingly to convert the returned string into an integer or double. Null is returned if something is wrong (e.g., invalid field index). bug-9852192: explicitly set codePage if .cpg file available

getFieldLength

public int getFieldLength(int nth)

return the length of the specified field.

getFieldName

public java.lang.String getFieldName(int ith)

returns the name for the ith field of records in this file.

getFieldType

public byte getFieldType(int ith)

get the type for the ith field in a record. returns a single character the meaning of which is defined as below:

        'C': character

        'D': Date (8 digits: YYYYMMDD)

        'F': Floating point binary numeric: -. 0 1 2 3 4 5 6 7 8 9

        'G': General. All OEM characters or OLE.

        'L': Logical: ? Y y N  n T t F f (? initially)

        'M': Memo

        'N': Float: - . 0 1 2 3 4 5 6 7 8 9

        'I': Integer: - 0 1 2 3 4 5 6 7 8 9

 

print

public void print()

nicely print out the general information of this shapefile.