org.hsqldb.cmdline.sqltool

Class FileRecordReader

java.lang.Object

org.hsqldb.cmdline.sqltool.FileRecordReader

public class FileRecordReader
extends java.lang.Object

This class does not impement or extend java.io classes/interfaces, and is not a Reader in the sense of java.io.Reader. It is a 'reader' in the sense that it provides a method that reads and return records from a text file. The unique use case here is that records are delimited with a regular expression pattern yet the file contents are read incrementally to minimize RAM usage.

Field Summary

Fields

Modifier and Type	Field and Description
static int	INITIAL_CHARBUFFER_SIZE

Constructor Summary

Constructors

Constructor and Description
FileRecordReader(java.lang.String filePath, java.lang.String recordDelimiterRegex, java.lang.String encoding)

Method Summary

Modifier and Type	Method and Description
void	close() Free up resources and close all potentially open I/O streams.
java.lang.String	getAbsolutePath()
java.lang.String	getName()
java.lang.String	getPath()
boolean	isOpen()
static void	main(java.lang.String[] sa) To be replaced by proper unit test class
java.lang.String	nextRecord()

Methods inherited from class java.lang.Object

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

Field Detail

INITIAL_CHARBUFFER_SIZE

public static final int INITIAL_CHARBUFFER_SIZE

See Also:

Constant Field Values

Constructor Detail

FileRecordReader

public FileRecordReader(java.lang.String filePath,
                        java.lang.String recordDelimiterRegex,
                        java.lang.String encoding)
                 throws java.io.FileNotFoundException,
                        java.io.UnsupportedEncodingException

Throws:

java.util.regex.PatternSyntaxException

java.io.UnsupportedEncodingException

java.io.FileNotFoundException

Method Detail

close

public void close()
           throws java.io.IOException

Free up resources and close all potentially open I/O streams.

Throws:

java.io.IOException

getName

public java.lang.String getName()

getPath

public java.lang.String getPath()

getAbsolutePath

public java.lang.String getAbsolutePath()

isOpen

public boolean isOpen()

main

public static void main(java.lang.String[] sa)
                 throws java.io.IOException

To be replaced by proper unit test class

Throws:

java.io.IOException

nextRecord

public java.lang.String nextRecord()
                            throws java.io.IOException

Returns:

null if no more records in input file

Throws:

java.io.IOException