public final S handle(final String sep, final List<? extends Expression<?>> expressions) {
        for (int i = 0; i < expressions.size(); i++) {
            if (i != 0) {
                append(sep);
            }
            handle(expressions.get(i));
        }
        return self;
    }
{@code SerializerBase} is a stub for Serializer implementations which serialize query metadata to Strings

@param <S> concrete subtype
@author tiwe
querydsl-core/src/main/java/com/querydsl/core/support/SerializerBase.java