package org.kuali.common.devops.heap;
   
   import static org.kuali.common.util.base.Precondition.checkMin;
   
   public final class Heap {
   
   	private final long young;
   	private final long old;
   	private final long perm;
  
  	private Heap(Builder builder) {
  		this.young = builder.young;
  		this.old = builder.old;
  		this.perm = builder.perm;
  	}
  
  	public static Builder builder() {
  		return new Builder();
  	}
  
  	public static class Builder implements org.apache.commons.lang3.builder.Builder<Heap> {
  
  		private long young = -1;
  		private long old = -1;
  		private long perm = -1;
  
  		public Builder withYoung(long young) {
  			this.young = young;
  			return this;
  		}
  
  		public Builder withOld(long old) {
  			this.old = old;
  			return this;
  		}
  
  		public Builder withPerm(long perm) {
  			this.perm = perm;
  			return this;
  		}
  
  		@Override
  		public Heap build() {
  			return validate(new Heap(this));
  		}
  
  		private static Heap validate(Heap reference) {
  			checkMin(reference.perm, 0, "perm");
  			checkMin(reference.old, 0, "old");
  			checkMin(reference.young, 0, "young");
  			return reference;
  		}
  	}
  
  	public long getYoung() {
  		return young;
  	}
  
  	public long getOld() {
  		return old;
  	}
  
  	public long getPerm() {
  		return perm;
  	}
  
  }