Description of Figure Example of Provider Subclass

Link to figure Example of Provider Subclass

This figure consists of a cylinder labeled Provider C and a box. Dotted lines are used to indicate that Provider C contains the contents of the box. The box contains the following headers and Java code:

provider.java

public class fooJCA extends Provider {
    .
    .
    put("MessageDigest.SHA-256", "com.foo.SHA256");
    .
}

com.foo.SHA256.java

package com.foo;
public class SHA256 extends MessageDigestSpi {
    .
    .
}