com.rpl.rama

Class Helpers

java.lang.Object

com.rpl.rama.Helpers

public class Helpers
extends java.lang.Object

Collection of static utility methods

Constructor Summary

Constructors

Constructor and Description
Helpers()

Method Summary

Modifier and Type	Method and Description
static java.util.List<java.lang.String>	genHashingIndexKeys(int numTasks) Generates a key that hashes to each task in a range of tasks.
static java.util.List<java.lang.String>	genHashingIndexKeys(java.lang.String prefix, int numTasks) Generates a key starting with the given prefix that hashes to each task in a range of tasks.
static java.lang.String	genPStateVar() Generates a unique PState var
static java.lang.String	genPStateVar(java.lang.String prefix) Generates a unique PState var with the given prefix
static java.lang.String	genVar() Generates a unique var
static java.lang.String	genVar(java.lang.String prefix) Generates a unique var with the given prefix
static java.lang.String	getGeneratedVarPrefix(java.lang.String var) Gets prefix string used to generate a var
static boolean	isGeneratedVar(java.lang.String s) Tests if a string has the format of a regular var or PState var

Methods inherited from class java.lang.Object

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

Constructor Detail

Helpers

public Helpers()

Method Detail

genVar

public static java.lang.String genVar(java.lang.String prefix)

Generates a unique var with the given prefix

Parameters:

prefix - Prefix string

Returns:

Generated var

See Also:

Macro documentation

genVar

public static java.lang.String genVar()

Generates a unique var

Returns:

Generated var

See Also:

Macro documentation

genPStateVar

public static java.lang.String genPStateVar(java.lang.String prefix)

Generates a unique PState var with the given prefix

Parameters:

prefix - Prefix string

Returns:

Generated var

See Also:

Macro documentation

genPStateVar

public static java.lang.String genPStateVar()

Generates a unique PState var

Returns:

Generated var

See Also:

Macro documentation

isGeneratedVar

public static boolean isGeneratedVar(java.lang.String s)

Tests if a string has the format of a regular var or PState var

Parameters:

s - String to test

See Also:

Macro documentation

getGeneratedVarPrefix

public static java.lang.String getGeneratedVarPrefix(java.lang.String var)

Gets prefix string used to generate a var

Parameters:

var - Var

See Also:

Macro documentation

genHashingIndexKeys

public static java.util.List<java.lang.String> genHashingIndexKeys(int numTasks)

Generates a key that hashes to each task in a range of tasks. The nth element in the returned list partitions to the nth task. This function is deterministic and will always produce the same keys.

Parameters:

numTasks - Number of tasks

genHashingIndexKeys

public static java.util.List<java.lang.String> genHashingIndexKeys(java.lang.String prefix,
                                                                   int numTasks)

Generates a key starting with the given prefix that hashes to each task in a range of tasks. The nth element in the returned list partitions to the nth task. This function is deterministic and will always produce the same keys. Calling this function with different prefixes will produce unique keys.

Parameters:

prefix - Prefix for each generated key

numTasks - Number of tasks