PM-Master/blockmatrix

blockmatrix

An API to manage users and attributes using a blockmatrix.

Note: This is only a library that uses a block matrix data structure. It is not a distriubted deployment of a block matrix.

Maven

First import the jitpack repository.

<repositories>
    <repository>
        <id>jitpack.io</id>
        <url>https://jitpack.io/</url>
    </repository>
</repositories>

Then import the blockmatrix dependency.

<dependency>
    <groupId>com.github.PM-Master</groupId>
    <artifactId>blockmatrix</artifactId>
    <version>LATEST</version>
</dependency>

Usage

New UsersBlockMatrix

UsersBlockMatrix bm = new UsersBlockMatrix(NUM_USERS);

Creates a new UsersBlockMatrix with the size NUM_USERS. This is the number of users that can fit in the block matrix. This cannot be changed later.

Add User

bm.addUser("u1", "ua1", "ua2");

Adds a new user to the blockmatrix with the user attributes ua1 and ua2

Get User

UserBlock user = b.getUser("u1");

A UserBlock has two fields:

private String username;
private Collection<String> attributes;

Update User

bm.updateUser("u1", "ua1", "ua2", "ua3");

Updates the attributes for u1 to ua1, ua2, and ua3.

Remove User

bm.remove("u1");

Removes the user from the blockmatrix.