Examples of org.springframework.data.mapping.PropertyPath

Package org.springframework.data.mapping

Examples of org.springframework.data.mapping.PropertyPath

org.springframework.data.mapping.PropertyPath
Abstraction of a {@link PropertyPath} of a domain class. @author Oliver Gierke

  }


  @Test
  public void supportsDotNotationAsWell() {


    PropertyPath propertyPath = PropertyPath.from("bar.userMap.name", Sample.class);


    assertThat(propertyPath, is(notNullValue()));
    assertThat(propertyPath.getSegment(), is("bar"));
    assertThat(propertyPath.getLeafProperty(), is(PropertyPath.from("name", FooBar.class)));
  }

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  }


  @Test
  public void returnsCorrectIteratorForSingleElement() {


    PropertyPath propertyPath = PropertyPath.from("userName", Foo.class);


    Iterator<PropertyPath> iterator = propertyPath.iterator();
    assertThat(iterator.hasNext(), is(true));
    assertThat(iterator.next(), is(propertyPath));
    assertThat(iterator.hasNext(), is(false));
  }

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  }


  @Test
  public void returnsCorrectIteratorForMultipleElement() {


    PropertyPath propertyPath = PropertyPath.from("user.name", Bar.class);


    Iterator<PropertyPath> iterator = propertyPath.iterator();
    assertThat(iterator.hasNext(), is(true));
    assertThat(iterator.next(), is(propertyPath));
    assertThat(iterator.hasNext(), is(true));
    assertThat(iterator.next(), is(propertyPath.next()));
    assertThat(iterator.hasNext(), is(false));
  }

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  }


  @Test
  public void samePathsEqual() {


    PropertyPath left = PropertyPath.from("user.name", Bar.class);
    PropertyPath right = PropertyPath.from("user.name", Bar.class);


    PropertyPath shortPath = PropertyPath.from("user", Bar.class);


    assertThat(left, is(right));
    assertThat(right, is(left));
    assertThat(left, is(not(shortPath)));
    assertThat(shortPath, is(not(left)));

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  }


  @Test
  public void hashCodeTests() {


    PropertyPath left = PropertyPath.from("user.name", Bar.class);
    PropertyPath right = PropertyPath.from("user.name", Bar.class);


    PropertyPath shortPath = PropertyPath.from("user", Bar.class);


    assertThat(left.hashCode(), is(right.hashCode()));
    assertThat(left.hashCode(), is(not(shortPath.hashCode())));
  }

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   * @see DATACMNS-257
   */
  @Test
  public void findsAllUppercaseProperty() {


    PropertyPath path = PropertyPath.from("UUID", Foo.class);


    assertThat(path, is(notNullValue()));
    assertThat(path.getSegment(), is("UUID"));
  }

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   * @see DATACMNS-257
   */
  @Test
  public void findsNestedAllUppercaseProperty() {


    PropertyPath path = PropertyPath.from("_fooUUID", Sample2.class);


    assertThat(path, is(notNullValue()));
    assertThat(path.getSegment(), is("_foo"));
    assertThat(path.hasNext(), is(true));
    assertThat(path.next().getSegment(), is("UUID"));
  }

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  private Order createOrder(String propertySource, Direction direction, Class<?> domainClass) {


    if (null == domainClass) {
      return new Order(direction, StringUtils.uncapitalize(propertySource));
    }
    PropertyPath propertyPath = PropertyPath.from(propertySource, domainClass);
    return new Order(direction, propertyPath.toDotPath());
  }

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   * @return
   */
  @SuppressWarnings("unchecked")
  private static javax.persistence.criteria.Order toJpaOrder(Order order, Root<?> root, CriteriaBuilder cb) {


    PropertyPath property = PropertyPath.from(order.getProperty(), root.getJavaType());
    Expression<?> expression = toExpressionRecursively(root, property);


    if (order.isIgnoreCase() && String.class.equals(expression.getJavaType())) {
      Expression<String> lower = cb.lower((Expression<String>) expression);
      return order.isAscending() ? cb.asc(lower) : cb.desc(lower);

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   */
  private Expression<?> buildOrderPropertyPathFrom(Order order) {


    Assert.notNull(order, "Order must not be null!");


    PropertyPath path = PropertyPath.from(order.getProperty(), builder.getType());
    Expression<?> sortPropertyExpression = builder;


    while (path != null) {


      if (!path.hasNext() && order.isIgnoreCase()) {
        // if order is ignore-case we have to treat the last path segment as a String.
        sortPropertyExpression = Expressions.stringPath((Path<?>) sortPropertyExpression, path.getSegment()).lower();
      } else {
        sortPropertyExpression = Expressions.path(path.getType(), (Path<?>) sortPropertyExpression, path.getSegment());
      }


      path = path.next();
    }


    return sortPropertyExpression;
  }

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