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package sun.jvm.hotspot.utilities.memo;

A memoized long. Override computeValue in subclasses; call getValue in using code.
/** A memoized long. Override {@link #computeValue} in subclasses; call {@link #getValue} in using code. */
public abstract class MemoizedLong { private boolean computed; private long value;
Should compute the value of this memoized object. This will only be called once, upon the first call to getValue.
/** Should compute the value of this memoized object. This will only be called once, upon the first call to {@link #getValue}. */
protected abstract long computeValue();
Public accessor for the memoized value.
/** Public accessor for the memoized value. */
public long getValue() { if (!computed) { value = computeValue(); computed = true; } return value; } }