/
Generator.java
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/
Generator.java
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package org.jboss.as.quickstarts.numberguess;
import java.io.Serializable;
import javax.enterprise.context.ApplicationScoped;
import javax.enterprise.inject.Produces;
/**
* <p>
* Random number generator.
* </p>
*
* <p>
* Placing the random number generation, as well as the configuring the maximum number allows for a
* more loosely coupled application. We can now change out the implementation of number generation
* without any effect on the client code. We also produce a more intuitive design - both are
* identifed by the fact they are numbers (int) and that they are qualified as the maximum number or
* a random number.
* </p>
*
* <p>
* We use the application scope to store the random number generator so that we use the same seed.
* </p>
*
* @author Pete Muir
*
*/
@ApplicationScoped
public class Generator implements Serializable {
private static final long serialVersionUID = -7213673465118041882L;
private java.util.Random random = new java.util.Random(System.currentTimeMillis());
private int maxNumber = 100;
java.util.Random getRandom() {
return random;
}
@Produces
@Random
int next() {
// a number between 1 and 100
return getRandom().nextInt(maxNumber - 1) + 1;
}
@Produces
@MaxNumber
int getMaxNumber() {
return maxNumber;
}
}