Method containsKey

src/main/java/gate/util/RBTreeMap.java:150–153

Returns true if this map contains a mapping for the specified key. @param key key whose presence in this map is to be tested. @return true if this map contains a mapping for the specified key. @throws ClassCastException if the key cannot be compared with the keys cu

(Object key)

    *            <tt>null</tt> keys.
    */
  @Override
  public boolean containsKey(Object key) {
    return getEntry(key) != null;
  }

  /**
    * Returns <tt>true</tt> if this map maps one or more keys to the