How to use

setVariable

method

in

org.springframework.cache.interceptor.CacheEvaluationContext

/**
 * Create an {@link EvaluationContext}.
 * @param caches the current caches
 * @param method the method
 * @param args the method arguments
 * @param target the target object
 * @param targetClass the target class
 * @param result the return value (can be {@code null}) or
 * {@link #NO_RESULT} if there is no return at this time
 * @return the evaluation context
 */
public EvaluationContext createEvaluationContext(Collection<? extends Cache> caches,
    Method method, Object[] args, Object target, Class<?> targetClass, Method targetMethod,
    @Nullable Object result, @Nullable BeanFactory beanFactory) {
  CacheExpressionRootObject rootObject = new CacheExpressionRootObject(
      caches, method, args, target, targetClass);
  CacheEvaluationContext evaluationContext = new CacheEvaluationContext(
      rootObject, targetMethod, args, getParameterNameDiscoverer());
  if (result == RESULT_UNAVAILABLE) {
    evaluationContext.addUnavailableVariable(RESULT_VARIABLE);
  }
  else if (result != NO_RESULT) {
    evaluationContext.setVariable(RESULT_VARIABLE, result);
  }
  if (beanFactory != null) {
    evaluationContext.setBeanResolver(new BeanFactoryResolver(beanFactory));
  }
  return evaluationContext;
}

/**
 * Create an {@link EvaluationContext}.
 * @param caches the current caches
 * @param method the method
 * @param args the method arguments
 * @param target the target object
 * @param targetClass the target class
 * @param result the return value (can be {@code null}) or
 * {@link #NO_RESULT} if there is no return at this time
 * @return the evaluation context
 */
public EvaluationContext createEvaluationContext(Collection<? extends Cache> caches,
    Method method, Object[] args, Object target, Class<?> targetClass, Method targetMethod,
    @Nullable Object result, @Nullable BeanFactory beanFactory) {
  CacheExpressionRootObject rootObject = new CacheExpressionRootObject(
      caches, method, args, target, targetClass);
  CacheEvaluationContext evaluationContext = new CacheEvaluationContext(
      rootObject, targetMethod, args, getParameterNameDiscoverer());
  if (result == RESULT_UNAVAILABLE) {
    evaluationContext.addUnavailableVariable(RESULT_VARIABLE);
  }
  else if (result != NO_RESULT) {
    evaluationContext.setVariable(RESULT_VARIABLE, result);
  }
  if (beanFactory != null) {
    evaluationContext.setBeanResolver(new BeanFactoryResolver(beanFactory));
  }
  return evaluationContext;
}

/**
 * Create an {@link EvaluationContext}.
 * @param caches the current caches
 * @param method the method
 * @param args the method arguments
 * @param target the target object
 * @param targetClass the target class
 * @param result the return value (can be {@code null}) or
 * {@link #NO_RESULT} if there is no return at this time
 * @return the evaluation context
 */
public EvaluationContext createEvaluationContext(Collection<? extends Cache> caches,
    Method method, Object[] args, Object target, Class<?> targetClass, Method targetMethod,
    @Nullable Object result, @Nullable BeanFactory beanFactory) {
  CacheExpressionRootObject rootObject = new CacheExpressionRootObject(
      caches, method, args, target, targetClass);
  CacheEvaluationContext evaluationContext = new CacheEvaluationContext(
      rootObject, targetMethod, args, getParameterNameDiscoverer());
  if (result == RESULT_UNAVAILABLE) {
    evaluationContext.addUnavailableVariable(RESULT_VARIABLE);
  }
  else if (result != NO_RESULT) {
    evaluationContext.setVariable(RESULT_VARIABLE, result);
  }
  if (beanFactory != null) {
    evaluationContext.setBeanResolver(new BeanFactoryResolver(beanFactory));
  }
  return evaluationContext;
}