content: /**
   * Copyright (C) 2012 the original author or authors.
   *
   * Licensed under the Apache License, Version 2.0 (the "License");
   * you may not use this file except in compliance with the License.
   * You may obtain a copy of the License at
   *
   *     http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  package co.jirm.orm.builder.select;
  
  import co.jirm.core.util.SafeAppendable;
  import co.jirm.orm.builder.select.OrderByPartial.OrderByMode;
  
  
  public class OrderByPartialVisitors {
  	
  	public static OrderByPartialVisitor visitor(final Appendable appendable) {
  		final SafeAppendable sa = new SafeAppendable(appendable);
  		return new OrderByPartialVisitor() {
  			@Override
  			protected void visit(String field, OrderByMode mode, boolean first) {
  				if (! first ) {
  					sa.append(", ");
  				}
  				sa.append(field);
  				switch (mode) {
  					case ASC:
  						sa.append(" ").append("ASC");
  						break;
  					case DESC:
  						sa.append(" ").append("DESC");
  						break;
  					case UNSPECIFIED:
  						sa.append(" ").append("ASC");
  						break;
  				}
  			}
  		};
  	}
  
  }
  