Package com.imsl.io

package com.imsl.io

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.

Related Packages

Package	Description
com.imsl	Utilities used by the library.
com.imsl.datamining	Data mining and machine learning.
com.imsl.finance	Financial computations.
com.imsl.math	Mathematical functions and algorithms.
com.imsl.stat	Statistical methods.

Class	Description
AbstractFlatFile	Reads a text or binary file as a ResultSet.
AbstractFlatFile.FlatFileSQLException	A SQLException thrown by the AbstractFlatFile class.
AbstractFlatFile.FlatFileSQLFeatureNotSupportedException	A SQLFeatureNotSupportedException thrown by the AbstractFlatFile class.
FlatFile	Reads a text file as a ResultSet.
FlatFile.Parser	Defines a method that parses a String into an Object.
MPSReader	Reads a linear programming problem from an MPS file.
MPSReader.Element	An element in the sparse contraint matrix.
MPSReader.InvalidMPSFileException	The MPS file is invalid.
Tokenizer	Breaks a line into tokens.