Class CartesianProduct

java.lang.Object

ca.phon.alignedTypesDatabase.CartesianProduct

public final class CartesianProduct
extends Object

Some helpful array methods used by the database

Constructor Summary

Constructors

Constructor	Description
CartesianProduct()

Method Summary

Modifier and Type	Method	Description
static <T> T[][]	product(Class<T> clazz, T[][] arrays)	Calculate and return cartesian product of arrays E.g., Given:
static <T> T[][]	product(Class<T> clazz, T[][] arrays, Function<T[],Boolean> includeSet)	Calculate and return cartesian product of arrays E.g., Given:
static String[][]	stringArrayProduct(String[][] arrays)	Calculate cartesian set of provided string arrays
static String[][]	stringArrayProduct(String[][] arrays, Function<String[],Boolean> includeSet)	Calculate cartesian set of provided string arrays

Methods inherited from class java.lang.Object

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

Constructor Details

CartesianProduct

public CartesianProduct()

Method Details

stringArrayProduct

public static String[][] stringArrayProduct(String[][] arrays)

Calculate cartesian set of provided string arrays

Parameters:

arrays -

Returns:

cartestian product of arrays, no null values are returned

stringArrayProduct

public static String[][] stringArrayProduct(String[][] arrays,
 Function<String[],Boolean> includeSet)

Calculate cartesian set of provided string arrays

Parameters:

arrays -

includeSet -

Returns:

cartestian product of arrays, no null values are returned

product

public static <T> T[][] product(Class<T> clazz,
 T[][] arrays)

Calculate and return cartesian product of arrays E.g., Given:

 String[][] arrays = new String[3][];
 arrays[0] = new String[]{ "v1", "v2" };
 arrays[1] = new String[]{ "v3", "v4" };
 arrays[2] = new String[]{ "v5", "v6" };
 

return

 [v1, v3, v5]
 [v1, v3, v6]
 [v1, v4, v5]
 [v1, v4, v6]
 [v2, v3, v5]
 [v2, v3, v6]
 [v2, v4, v5]
 [v2, v4, v6]
 

Parameters:

clazz - type of array for return value

arrays - array of arrays of type T

Returns:

product

public static <T> T[][] product(Class<T> clazz,
 T[][] arrays,
 Function<T[],Boolean> includeSet)

Calculate and return cartesian product of arrays E.g., Given:

 String[][] arrays = new String[3][];
 arrays[0] = new String[]{ "v1", "v2" };
 arrays[1] = new String[]{ "v3", "v4" };
 arrays[2] = new String[]{ "v5", "v6" };
 

return

 [v1, v3, v5]
 [v1, v3, v6]
 [v1, v4, v5]
 [v1, v4, v6]
 [v2, v3, v5]
 [v2, v3, v6]
 [v2, v4, v5]
 [v2, v4, v6]
 

Parameters:

clazz -

arrays - array of arrays of type T

includeSet - used to filter sets returned by the product

Returns: