org.jgroups.util.OneTimeAddressGenerator Maven / Gradle / Ivy

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This artifact provides a single jar that contains all classes required to use remote EJB and JMS, including all dependencies. It is intended for use by those not using maven, maven users should just import the EJB and JMS BOM's instead (shaded JAR's cause lots of problems with maven, as it is very easy to inadvertently end up with different versions on classes on the class path).

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package org.jgroups.util;

import org.jgroups.Address;
import org.jgroups.stack.AddressGenerator;

/**
 * Implementation of {@link org.jgroups.stack.AddressGenerator} which is configured with an initial value, and
 * after that random values are generated.
 * @author Bela Ban
 * @since  3.5
 */
public class OneTimeAddressGenerator implements AddressGenerator {
    protected final long initial_val;
    protected boolean    first=true;

    public OneTimeAddressGenerator(long initial_val) {
        this.initial_val=initial_val;
    }

    public Address generateAddress() {
        if(first) {
            first=false;
            return new UUID(0, initial_val);
        }
        return Util.createRandomAddress();
    }
}