org.springframework.core.convert.TypeDescriptor.getAnnotation()方法的使用及代码示例

x33g5p2x  于2022-01-29 转载在 其他  
字(10.1k)|赞(0)|评价(0)|浏览(77)

本文整理了Java中org.springframework.core.convert.TypeDescriptor.getAnnotation()方法的一些代码示例，展示了TypeDescriptor.getAnnotation()的具体用法。这些代码示例主要来源于Github/Stackoverflow/Maven等平台，是从一些精选项目中提取出来的代码，具有较强的参考意义，能在一定程度帮忙到你。TypeDescriptor.getAnnotation()方法的具体详情如下：
包路径：org.springframework.core.convert.TypeDescriptor
类名称：TypeDescriptor
方法名：getAnnotation

TypeDescriptor.getAnnotation介绍

[英]Obtain the annotation of the specified annotationType that is on this type descriptor.

As of Spring Framework 4.2, this method supports arbitrary levels of meta-annotations.
[中]获取此类型描述符上指定annotationType的批注。
从Spring Framework 4.2开始，这种方法支持任意级别的元注释。

代码示例

代码示例来源：origin: org.springframework.boot/spring-boot

private DurationStyle getStyle(TypeDescriptor targetType) {
  DurationFormat annotation = targetType.getAnnotation(DurationFormat.class);
  return (annotation != null) ? annotation.value() : null;
}

代码示例来源：origin: spring-projects/spring-framework

@Test
public void fieldAnnotated() throws Exception {
  TypeDescriptor typeDescriptor = new TypeDescriptor(getClass().getField("fieldAnnotated"));
  assertEquals(1, typeDescriptor.getAnnotations().length);
  assertNotNull(typeDescriptor.getAnnotation(FieldAnnotation.class));
}

代码示例来源：origin: org.springframework.boot/spring-boot

private ChronoUnit getDurationUnit(TypeDescriptor sourceType) {
  DurationUnit annotation = sourceType.getAnnotation(DurationUnit.class);
  return (annotation != null) ? annotation.value() : null;
}

代码示例来源：origin: spring-projects/spring-framework

@Test
public void parameterAnnotated() throws Exception {
  TypeDescriptor t1 = new TypeDescriptor(new MethodParameter(getClass().getMethod("testAnnotatedMethod", String.class), 0));
  assertEquals(String.class, t1.getType());
  assertEquals(1, t1.getAnnotations().length);
  assertNotNull(t1.getAnnotation(ParameterAnnotation.class));
  assertTrue(t1.hasAnnotation(ParameterAnnotation.class));
  assertEquals(123, t1.getAnnotation(ParameterAnnotation.class).value());
}

代码示例来源：origin: org.springframework.boot/spring-boot

private ChronoUnit getDurationUnit(TypeDescriptor targetType) {
  DurationUnit annotation = targetType.getAnnotation(DurationUnit.class);
  return (annotation != null) ? annotation.value() : null;
}

代码示例来源：origin: org.springframework.boot/spring-boot

private DataUnit getDataUnit(TypeDescriptor targetType) {
  DataSizeUnit annotation = targetType.getAnnotation(DataSizeUnit.class);
  return (annotation != null) ? annotation.value() : null;
}

代码示例来源：origin: org.springframework.boot/spring-boot

private CharSequence getDelimiter(TypeDescriptor sourceType) {
  Delimiter annotation = sourceType.getAnnotation(Delimiter.class);
  return (annotation != null) ? annotation.value() : ",";
}

代码示例来源：origin: org.springframework.boot/spring-boot

private DurationStyle getDurationStyle(TypeDescriptor sourceType) {
  DurationFormat annotation = sourceType.getAnnotation(DurationFormat.class);
  return (annotation != null) ? annotation.value() : null;
}

代码示例来源：origin: spring-projects/spring-framework

@Override
public boolean matches(TypeDescriptor sourceType, TypeDescriptor targetType) {
  ExampleAnnotation ann = targetType.getAnnotation(ExampleAnnotation.class);
  return (ann != null && ann.active());
}

代码示例来源：origin: spring-projects/spring-framework

@Override
@SuppressWarnings("unchecked")
@Nullable
public Object convert(@Nullable Object source, TypeDescriptor sourceType, TypeDescriptor targetType) {
  Annotation ann = sourceType.getAnnotation(this.annotationType);
  if (ann == null) {
    throw new IllegalStateException(
        "Expected [" + this.annotationType.getName() + "] to be present on " + sourceType);
  }
  AnnotationConverterKey converterKey = new AnnotationConverterKey(ann, sourceType.getObjectType());
  GenericConverter converter = cachedPrinters.get(converterKey);
  if (converter == null) {
    Printer<?> printer = this.annotationFormatterFactory.getPrinter(
        converterKey.getAnnotation(), converterKey.getFieldType());
    converter = new PrinterConverter(this.fieldType, printer, FormattingConversionService.this);
    cachedPrinters.put(converterKey, converter);
  }
  return converter.convert(source, sourceType, targetType);
}

代码示例来源：origin: spring-projects/spring-framework

@Override
@SuppressWarnings("unchecked")
@Nullable
public Object convert(@Nullable Object source, TypeDescriptor sourceType, TypeDescriptor targetType) {
  Annotation ann = targetType.getAnnotation(this.annotationType);
  if (ann == null) {
    throw new IllegalStateException(
        "Expected [" + this.annotationType.getName() + "] to be present on " + targetType);
  }
  AnnotationConverterKey converterKey = new AnnotationConverterKey(ann, targetType.getObjectType());
  GenericConverter converter = cachedParsers.get(converterKey);
  if (converter == null) {
    Parser<?> parser = this.annotationFormatterFactory.getParser(
        converterKey.getAnnotation(), converterKey.getFieldType());
    converter = new ParserConverter(this.fieldType, parser, FormattingConversionService.this);
    cachedParsers.put(converterKey, converter);
  }
  return converter.convert(source, sourceType, targetType);
}

代码示例来源：origin: org.springframework/spring-context

@Override
@SuppressWarnings("unchecked")
@Nullable
public Object convert(@Nullable Object source, TypeDescriptor sourceType, TypeDescriptor targetType) {
  Annotation ann = targetType.getAnnotation(this.annotationType);
  if (ann == null) {
    throw new IllegalStateException(
        "Expected [" + this.annotationType.getName() + "] to be present on " + targetType);
  }
  AnnotationConverterKey converterKey = new AnnotationConverterKey(ann, targetType.getObjectType());
  GenericConverter converter = cachedParsers.get(converterKey);
  if (converter == null) {
    Parser<?> parser = this.annotationFormatterFactory.getParser(
        converterKey.getAnnotation(), converterKey.getFieldType());
    converter = new ParserConverter(this.fieldType, parser, FormattingConversionService.this);
    cachedParsers.put(converterKey, converter);
  }
  return converter.convert(source, sourceType, targetType);
}

代码示例来源：origin: org.springframework/spring-context

@Override
@SuppressWarnings("unchecked")
@Nullable
public Object convert(@Nullable Object source, TypeDescriptor sourceType, TypeDescriptor targetType) {
  Annotation ann = sourceType.getAnnotation(this.annotationType);
  if (ann == null) {
    throw new IllegalStateException(
        "Expected [" + this.annotationType.getName() + "] to be present on " + sourceType);
  }
  AnnotationConverterKey converterKey = new AnnotationConverterKey(ann, sourceType.getObjectType());
  GenericConverter converter = cachedPrinters.get(converterKey);
  if (converter == null) {
    Printer<?> printer = this.annotationFormatterFactory.getPrinter(
        converterKey.getAnnotation(), converterKey.getFieldType());
    converter = new PrinterConverter(this.fieldType, printer, FormattingConversionService.this);
    cachedPrinters.put(converterKey, converter);
  }
  return converter.convert(source, sourceType, targetType);
}

代码示例来源：origin: spring-projects/spring-framework

@Test
public void testUpCast() throws Exception {
  Property property = new Property(getClass(), getClass().getMethod("getProperty"),
      getClass().getMethod("setProperty", Map.class));
  TypeDescriptor typeDescriptor = new TypeDescriptor(property);
  TypeDescriptor upCast = typeDescriptor.upcast(Object.class);
  assertTrue(upCast.getAnnotation(MethodAnnotation1.class) != null);
}

代码示例来源：origin: spring-projects/spring-framework

private void assertAnnotationFoundOnMethod(Class<? extends Annotation> annotationType, String methodName) throws Exception {
  TypeDescriptor typeDescriptor = new TypeDescriptor(new MethodParameter(getClass().getMethod(methodName), -1));
  assertNotNull("Should have found @" + annotationType.getSimpleName() + " on " + methodName + ".",
      typeDescriptor.getAnnotation(annotationType));
}

代码示例来源：origin: spring-projects/spring-framework

@Test
public void property() throws Exception {
  Property property = new Property(
      getClass(), getClass().getMethod("getProperty"), getClass().getMethod("setProperty", Map.class));
  TypeDescriptor desc = new TypeDescriptor(property);
  assertEquals(Map.class, desc.getType());
  assertEquals(Integer.class, desc.getMapKeyTypeDescriptor().getElementTypeDescriptor().getType());
  assertEquals(Long.class, desc.getMapValueTypeDescriptor().getElementTypeDescriptor().getType());
  assertNotNull(desc.getAnnotation(MethodAnnotation1.class));
  assertNotNull(desc.getAnnotation(MethodAnnotation2.class));
  assertNotNull(desc.getAnnotation(MethodAnnotation3.class));
}

代码示例来源：origin: spring-projects/spring-framework

@Test
public void propertyGenericClassList() throws Exception {
  IntegerClass genericBean = new IntegerClass();
  Property property = new Property(genericBean.getClass(), genericBean.getClass().getMethod("getListProperty"),
      genericBean.getClass().getMethod("setListProperty", List.class));
  TypeDescriptor desc = new TypeDescriptor(property);
  assertEquals(List.class, desc.getType());
  assertEquals(Integer.class, desc.getElementTypeDescriptor().getType());
  assertNotNull(desc.getAnnotation(MethodAnnotation1.class));
  assertTrue(desc.hasAnnotation(MethodAnnotation1.class));
}

代码示例来源：origin: spring-projects/spring-framework

@Test
public void mapKeyTypePreserveContext() throws Exception {
  TypeDescriptor desc = new TypeDescriptor(getClass().getField("mapPreserveContext"));
  assertEquals(Integer.class, desc.getMapKeyTypeDescriptor().getElementTypeDescriptor().getType());
  List<Integer> value = new ArrayList<>(3);
  desc = desc.getMapKeyTypeDescriptor(value);
  assertEquals(Integer.class, desc.getElementTypeDescriptor().getType());
  assertNotNull(desc.getAnnotation(FieldAnnotation.class));
}

代码示例来源：origin: spring-projects/spring-framework

@Test
public void mapValueTypePreserveContext() throws Exception {
  TypeDescriptor desc = new TypeDescriptor(getClass().getField("mapPreserveContext"));
  assertEquals(Integer.class, desc.getMapValueTypeDescriptor().getElementTypeDescriptor().getType());
  List<Integer> value = new ArrayList<>(3);
  desc = desc.getMapValueTypeDescriptor(value);
  assertEquals(Integer.class, desc.getElementTypeDescriptor().getType());
  assertNotNull(desc.getAnnotation(FieldAnnotation.class));
}

代码示例来源：origin: spring-projects/spring-framework

@Test
public void elementTypePreserveContext() throws Exception {
  TypeDescriptor desc = new TypeDescriptor(getClass().getField("listPreserveContext"));
  assertEquals(Integer.class, desc.getElementTypeDescriptor().getElementTypeDescriptor().getType());
  List<Integer> value = new ArrayList<>(3);
  desc = desc.elementTypeDescriptor(value);
  assertEquals(Integer.class, desc.getElementTypeDescriptor().getType());
  assertNotNull(desc.getAnnotation(FieldAnnotation.class));
}

内容来源于网络，如有侵权，请联系作者删除！

TypeDescriptor

相关文章

    查看更多
    微信公众号

    热门标签

    更多
    JavaquerypythonNode开发语言requestUtil数据库Table后端算法LoggerMessageElementParser

    最新文章

    更多

    TypeDescriptor类方法

    • 蜀ICP备13028337号-1 大数据知识库 https://www.saoniuhuo.com © All rights reserved
    • 本站内容来源互联网,如果侵犯您的权益请联系我们删除, 联系方式：448109455@qq.com