Package com.imsl.io

Methods for reading files.

See: Description

Interface Summary

Interface	Description
FlatFile.Parser	Defines a method that parses a String into an Object.

Class Summary

Class	Description
AbstractFlatFile	Reads a text or binary file as a ResultSet.
FlatFile	Reads a text file as a ResultSet.
MPSReader	Reads a linear programming problem from an MPS file.
MPSReader.Element	An element in the sparse contraint matrix.
Tokenizer	Breaks a line into tokens.

Exception Summary

Exception	Description
AbstractFlatFile.FlatFileSQLException	A SQLException thrown by the AbstractFlatFile class.
AbstractFlatFile.FlatFileSQLFeatureNotSupportedException	A SQLFeatureNotSupportedException thrown by the AbstractFlatFile class.
MPSReader.InvalidMPSFileException	The MPS file is invalid.

Package com.imsl.io Description

Methods for reading files.

The class AbstractFlatFile is used to read a data file and return a java.sql.ResultSet object. The ResultSet object is normally used by JDBC to return the result of an SQL query.

Since AbstractFlatFile is abstract it cannot be used directly. The class FlatFile extends AbstractFlatFile and is used to read flat text files. Typical flat files are comma separated files (CSV files) and space separated files. The class FlatFile uses the class Tokenizer class to split tokens on a line. This class can be extended to handle other types of flat files.

The AbstractFlatFile can also be extended to read binary files. It provides the support for the required members of the java.sql.ResultSet interface, but the actual reading of the binary files must be done in user supplied code.

The class MPSReader is used to read linear programming problems written in the standard MPS file format.