edu.iris.dmc.pdcc.util
Class SchemaReader

java.lang.Object
  edu.iris.dmc.pdcc.util.SchemaReader

public class SchemaReader

extends java.lang.Object

This class reads the PDCC schema file and provides table name and field definitions.

Version:

1/21/2003

Author:

Robert Casey, IRIS DMC

Constructor Summary

SchemaReader(java.lang.String schemaFile)
instantiate SchemaReader by reading indicated filename.

Method Summary

void	close() Close currently open schema file.
java.util.Vector	getFieldFlags() Return a vector of the field flags
java.util.Vector	getFieldNames() Return the vector of field names...may be null.
java.util.Vector	getFieldTypes() Return the vector of field types...may be null
java.lang.String	getNextTable() Extract the next table definition from the buffered reader.
int	getNumFields() Return the number of fields in the current table, or 0
java.lang.String	getTableName() return the current table name or null string.
static void	main(java.lang.String[] args) Test the reader by displaying the contents of provided schema file name.
void	open(java.lang.String schemaFile) Open the schema file for reading.

Methods inherited from class java.lang.Object

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

Constructor Detail

SchemaReader

public SchemaReader(java.lang.String schemaFile)
             throws java.lang.Exception

instantiate SchemaReader by reading indicated filename.

Method Detail

open

public void open(java.lang.String schemaFile)
          throws java.lang.Exception

Open the schema file for reading. bufReader is the handle we will read from.

Throws:

java.lang.Exception

getNextTable

public java.lang.String getNextTable()
                              throws java.lang.Exception

Extract the next table definition from the buffered reader. return the name of the table on success. return a null if no more tables can be read

Throws:

java.lang.Exception

getTableName

public java.lang.String getTableName()

return the current table name or null string.

getNumFields

public int getNumFields()

Return the number of fields in the current table, or 0

getFieldNames

public java.util.Vector getFieldNames()

Return the vector of field names...may be null.

getFieldTypes

public java.util.Vector getFieldTypes()

Return the vector of field types...may be null

getFieldFlags

public java.util.Vector getFieldFlags()

Return a vector of the field flags

close

public void close()
           throws java.io.IOException

Close currently open schema file. no more reads can be performed from that file.

Throws:

java.io.IOException

main

public static void main(java.lang.String[] args)

Test the reader by displaying the contents of provided schema file name. args[0] = filepath to schema file