Method peek

PCGen-base/code/src/java/pcgen/base/util/MappedDeque.java:103–116

Returns the top value of the Deque for the given TypedKey, without performing a pop. Note that this method will not block or throw an error if the Deque is empty. It will simply return the "Default Value" for the given TypeKey. Note null is a legal default value. @param key The TypeKey

(TypedKey<T> key)

	 * @return The top value of the Deque for the given TypedKey
	 */
	public <T> T peek(TypedKey<T> key)
	{
		Deque<Object> dq = getDeque(Objects.requireNonNull(key));
		T value;
		if ((dq == null) || dq.isEmpty())
		{
			value = key.getDefaultValue();
		}
		else
		{
			value = key.cast(unwrap(dq.peek()));
		}
		return value;
	}

	/**
	 * Sets a new value onto the Deque for the given TypedKey.