simpledb

Class HeapFileSplitter

java.lang.Object

simpledb.HeapFileSplitter

public class HeapFileSplitter
extends java.lang.Object

Split all the heapfiles within a database to #worker parts. The split data files are placed under the data directory of current working directory. The data of a worker host:port is placed under data/host_port The catalog file of each split part is the same, namely catalog.schema This class will be called in the startSimpleDB.sh script.

Field Summary

Fields

Modifier and Type	Field and Description
static java.lang.String	DEFAULT_OUTPUT_DIR
(package private) static java.lang.String	usage

Constructor Summary

Constructors

Constructor and Description
HeapFileSplitter()

Method Summary

Methods

Modifier and Type	Method and Description
private static int	getTotalTuples(int tableid)
static void	main(java.lang.String[] args)
static void	writeHeapFile(java.util.ArrayList<Tuple> tuples, java.io.File outFile, int npagebytes, Type[] typeAr)

Methods inherited from class java.lang.Object

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

Field Detail

usage

static final java.lang.String usage

See Also:

Constant Field Values

DEFAULT_OUTPUT_DIR

public static final java.lang.String DEFAULT_OUTPUT_DIR

See Also:

Constant Field Values

Constructor Detail

HeapFileSplitter

public HeapFileSplitter()

Method Detail

writeHeapFile

public static void writeHeapFile(java.util.ArrayList<Tuple> tuples,
                 java.io.File outFile,
                 int npagebytes,
                 Type[] typeAr)
                          throws java.io.IOException

Throws:

java.io.IOException

getTotalTuples

private static int getTotalTuples(int tableid)

main

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

Throws:

java.lang.Exception