IfSqlNode.java

  1. /*
  2.  *    Copyright 2009-2025 the original author or authors.
  3.  *
  4.  *    Licensed under the Apache License, Version 2.0 (the "License");
  5.  *    you may not use this file except in compliance with the License.
  6.  *    You may obtain a copy of the License at
  7.  *
  8.  *       https://www.apache.org/licenses/LICENSE-2.0
  9.  *
  10.  *    Unless required by applicable law or agreed to in writing, software
  11.  *    distributed under the License is distributed on an "AS IS" BASIS,
  12.  *    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  13.  *    See the License for the specific language governing permissions and
  14.  *    limitations under the License.
  15.  */
  16. package org.apache.ibatis.scripting.xmltags;

  17. /**
  18.  * @author Clinton Begin
  19.  */
  20. public class IfSqlNode implements SqlNode {
  21.   private final ExpressionEvaluator evaluator = ExpressionEvaluator.INSTANCE;
  22.   private final String test;
  23.   private final SqlNode contents;

  24.   public IfSqlNode(SqlNode contents, String test) {
  25.     this.test = test;
  26.     this.contents = contents;
  27.   }

  28.   @Override
  29.   public boolean apply(DynamicContext context) {
  30.     if (evaluator.evaluateBoolean(test, context.getBindings())) {
  31.       contents.apply(context);
  32.       return true;
  33.     }
  34.     return false;
  35.   }

  36. }