src/main/java/com/googlecode/objectify/impl/SimpleQueryImpl.java
@Override
	public QueryImpl<T> filterKey(String condition, Object value) {
		QueryImpl<T> q = createQuery();
		q.addFilter(KEY_RESERVED_PROPERTY + " " + condition.trim(), value);
		return q;
	}
@Override
	public QueryImpl<T> filterKey(String condition, Object value) {
		QueryImpl<T> q = createQuery();
		q.addFilter(KEY_RESERVED_PROPERTY + " " + condition.trim(), value);
		return q;
	}
/* (non-Javadoc)
@see com.googlecode.objectify.cmd.QueryCommon#filterKey(java.lang.String, java.lang.Object)