org.springframework.core.convert.TypeDescriptor.getAnnotations()方法的使用及代码示例
本文整理了Java中org.springframework.core.convert.TypeDescriptor.getAnnotations()方法的一些代码示例，展示了TypeDescriptor.getAnnotations()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.getAnnotations()方法的具体详情如下：
包路径：org.springframework.core.convert.TypeDescriptor
类名称：TypeDescriptor
方法名：getAnnotations
TypeDescriptor.getAnnotations介绍
[英]Return the annotations associated with this type descriptor, if any.
[中]返回与此类型描述符关联的注释（如果有）。
代码示例
代码示例来源：origin: spring-projects/spring-framework
private boolean annotationsMatch(TypeDescriptor otherDesc) {
Annotation[] anns = getAnnotations();
Annotation[] otherAnns = otherDesc.getAnnotations();
if (anns == otherAnns) {
return true;
}
if (anns.length != otherAnns.length) {
return false;
}
if (anns.length > 0) {
for (int i = 0; i < anns.length; i++) {
if (!annotationEquals(anns[i], otherAnns[i])) {
return false;
}
}
}
return true;
}代码示例来源：origin: spring-projects/spring-framework
@Override
public String toString() {
StringBuilder builder = new StringBuilder();
for (Annotation ann : getAnnotations()) {
builder.append("@").append(ann.annotationType().getName()).append(' ');
}
builder.append(getResolvableType().toString());
return builder.toString();
}代码示例来源：origin: spring-projects/spring-framework
@Nullable
private static TypeDescriptor getRelatedIfResolvable(TypeDescriptor source, ResolvableType type) {
if (type.resolve() == null) {
return null;
}
return new TypeDescriptor(type, null, source.getAnnotations());
}代码示例来源：origin: spring-projects/spring-framework
/**
* Create a new type descriptor as an array of the specified type.
* <p>For example to create a {@code Map<String,String>[]} use:
* <pre class="code">
* TypeDescriptor.array(TypeDescriptor.map(Map.class, TypeDescriptor.value(String.class), TypeDescriptor.value(String.class)));
* </pre>
* @param elementTypeDescriptor the {@link TypeDescriptor} of the array element or {@code null}
* @return an array {@link TypeDescriptor} or {@code null} if {@code elementTypeDescriptor} is {@code null}
* @since 3.2.1
*/
@Nullable
public static TypeDescriptor array(@Nullable TypeDescriptor elementTypeDescriptor) {
if (elementTypeDescriptor == null) {
return null;
}
return new TypeDescriptor(ResolvableType.forArrayComponent(elementTypeDescriptor.resolvableType),
null, elementTypeDescriptor.getAnnotations());
}代码示例来源：origin: spring-projects/spring-framework
public GenericTypeDescriptor(TypeDescriptor typeDescriptor) {
super(typeDescriptor.getResolvableType().getGeneric(), null, typeDescriptor.getAnnotations());
}
}代码示例来源：origin: spring-projects/spring-framework
/**
* Narrows this {@link TypeDescriptor} by setting its type to the class of the
* provided value.
* <p>If the value is {@code null}, no narrowing is performed and this TypeDescriptor
* is returned unchanged.
* <p>Designed to be called by binding frameworks when they read property, field,
* or method return values. Allows such frameworks to narrow a TypeDescriptor built
* from a declared property, field, or method return value type. For example, a field
* declared as {@code java.lang.Object} would be narrowed to {@code java.util.HashMap}
* if it was set to a {@code java.util.HashMap} value. The narrowed TypeDescriptor
* can then be used to convert the HashMap to some other type. Annotation and nested
* type context is preserved by the narrowed copy.
* @param value the value to use for narrowing this type descriptor
* @return this TypeDescriptor narrowed (returns a copy with its type updated to the
* class of the provided value)
*/
public TypeDescriptor narrow(@Nullable Object value) {
if (value == null) {
return this;
}
ResolvableType narrowed = ResolvableType.forType(value.getClass(), getResolvableType());
return new TypeDescriptor(narrowed, value.getClass(), getAnnotations());
}代码示例来源：origin: spring-projects/spring-framework
/**
* Cast this {@link TypeDescriptor} to a superclass or implemented interface
* preserving annotations and nested type context.
* @param superType the super type to cast to (can be {@code null})
* @return a new TypeDescriptor for the up-cast type
* @throws IllegalArgumentException if this type is not assignable to the super-type
* @since 3.2
*/
@Nullable
public TypeDescriptor upcast(@Nullable Class<?> superType) {
if (superType == null) {
return null;
}
Assert.isAssignable(superType, getType());
return new TypeDescriptor(getResolvableType().as(superType), superType, getAnnotations());
}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: spring-projects/spring-framework
/**
* If this type is an array, returns the array's component type.
* If this type is a {@code Stream}, returns the stream's component type.
* If this type is a {@link Collection} and it is parameterized, returns the Collection's element type.
* If the Collection is not parameterized, returns {@code null} indicating the element type is not declared.
* @return the array component type or Collection element type, or {@code null} if this type is a
* Collection but its element type is not parameterized
* @throws IllegalStateException if this type is not a {@code java.util.Collection} or array type
*/
@Nullable
public TypeDescriptor getElementTypeDescriptor() {
if (getResolvableType().isArray()) {
return new TypeDescriptor(getResolvableType().getComponentType(), null, getAnnotations());
}
if (Stream.class.isAssignableFrom(getType())) {
return getRelatedIfResolvable(this, getResolvableType().as(Stream.class).getGeneric(0));
}
return getRelatedIfResolvable(this, getResolvableType().asCollection().getGeneric(0));
}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: spring-projects/spring-framework
@Test
public void parameterPrimitive() throws Exception {
TypeDescriptor desc = new TypeDescriptor(new MethodParameter(getClass().getMethod("testParameterPrimitive", int.class), 0));
assertEquals(int.class, desc.getType());
assertEquals(Integer.class, desc.getObjectType());
assertEquals("int", desc.getName());
assertEquals("int", desc.toString());
assertTrue(desc.isPrimitive());
assertEquals(0, desc.getAnnotations().length);
assertFalse(desc.isCollection());
assertFalse(desc.isMap());
}代码示例来源：origin: spring-projects/spring-framework
@Test
public void parameterScalar() throws Exception {
TypeDescriptor desc = new TypeDescriptor(new MethodParameter(getClass().getMethod("testParameterScalar", String.class), 0));
assertEquals(String.class, desc.getType());
assertEquals(String.class, desc.getObjectType());
assertEquals("java.lang.String", desc.getName());
assertEquals("java.lang.String", desc.toString());
assertTrue(!desc.isPrimitive());
assertEquals(0, desc.getAnnotations().length);
assertFalse(desc.isCollection());
assertFalse(desc.isArray());
assertFalse(desc.isMap());
}代码示例来源：origin: spring-projects/spring-framework
@Test
public void parameterListNoParamTypes() throws Exception {
MethodParameter methodParameter = new MethodParameter(getClass().getMethod("testParameterListNoParamTypes", List.class), 0);
TypeDescriptor desc = new TypeDescriptor(methodParameter);
assertEquals(List.class, desc.getType());
assertEquals(List.class, desc.getObjectType());
assertEquals("java.util.List", desc.getName());
assertEquals("java.util.List<?>", desc.toString());
assertTrue(!desc.isPrimitive());
assertEquals(0, desc.getAnnotations().length);
assertTrue(desc.isCollection());
assertFalse(desc.isArray());
assertNull(desc.getElementTypeDescriptor());
assertFalse(desc.isMap());
}代码示例来源：origin: spring-projects/spring-framework
@Test
public void parameterArray() throws Exception {
MethodParameter methodParameter = new MethodParameter(getClass().getMethod("testParameterArray", Integer[].class), 0);
TypeDescriptor desc = new TypeDescriptor(methodParameter);
assertEquals(Integer[].class, desc.getType());
assertEquals(Integer[].class, desc.getObjectType());
assertEquals("java.lang.Integer[]", desc.getName());
assertEquals("java.lang.Integer[]", desc.toString());
assertTrue(!desc.isPrimitive());
assertEquals(0, desc.getAnnotations().length);
assertFalse(desc.isCollection());
assertTrue(desc.isArray());
assertEquals(Integer.class, desc.getElementTypeDescriptor().getType());
assertEquals(TypeDescriptor.valueOf(Integer.class), desc.getElementTypeDescriptor());
assertFalse(desc.isMap());
}代码示例来源：origin: spring-projects/spring-framework
@Test
public void parameterMap() throws Exception {
MethodParameter methodParameter = new MethodParameter(getClass().getMethod("testParameterMap", Map.class), 0);
TypeDescriptor desc = new TypeDescriptor(methodParameter);
assertEquals(Map.class, desc.getType());
assertEquals(Map.class, desc.getObjectType());
assertEquals("java.util.Map", desc.getName());
assertEquals("java.util.Map<java.lang.Integer, java.util.List<java.lang.String>>", desc.toString());
assertTrue(!desc.isPrimitive());
assertEquals(0, desc.getAnnotations().length);
assertFalse(desc.isCollection());
assertFalse(desc.isArray());
assertTrue(desc.isMap());
assertEquals(TypeDescriptor.nested(methodParameter, 1), desc.getMapValueTypeDescriptor());
assertEquals(TypeDescriptor.nested(methodParameter, 2), desc.getMapValueTypeDescriptor().getElementTypeDescriptor());
assertEquals(Integer.class, desc.getMapKeyTypeDescriptor().getType());
assertEquals(List.class, desc.getMapValueTypeDescriptor().getType());
assertEquals(String.class, desc.getMapValueTypeDescriptor().getElementTypeDescriptor().getType());
}代码示例来源：origin: spring-projects/spring-framework
@Test
public void collection() {
TypeDescriptor desc = TypeDescriptor.collection(List.class, TypeDescriptor.valueOf(Integer.class));
assertEquals(List.class, desc.getType());
assertEquals(List.class, desc.getObjectType());
assertEquals("java.util.List", desc.getName());
assertEquals("java.util.List<java.lang.Integer>", desc.toString());
assertTrue(!desc.isPrimitive());
assertEquals(0, desc.getAnnotations().length);
assertTrue(desc.isCollection());
assertFalse(desc.isArray());
assertEquals(Integer.class, desc.getElementTypeDescriptor().getType());
assertEquals(TypeDescriptor.valueOf(Integer.class), desc.getElementTypeDescriptor());
assertFalse(desc.isMap());
}代码示例来源：origin: spring-projects/spring-framework
@Test
public void parameterList() throws Exception {
MethodParameter methodParameter = new MethodParameter(getClass().getMethod("testParameterList", List.class), 0);
TypeDescriptor desc = new TypeDescriptor(methodParameter);
assertEquals(List.class, desc.getType());
assertEquals(List.class, desc.getObjectType());
assertEquals("java.util.List", desc.getName());
assertEquals("java.util.List<java.util.List<java.util.Map<java.lang.Integer, java.lang.Enum<?>>>>", desc.toString());
assertTrue(!desc.isPrimitive());
assertEquals(0, desc.getAnnotations().length);
assertTrue(desc.isCollection());
assertFalse(desc.isArray());
assertEquals(List.class, desc.getElementTypeDescriptor().getType());
assertEquals(TypeDescriptor.nested(methodParameter, 1), desc.getElementTypeDescriptor());
assertEquals(TypeDescriptor.nested(methodParameter, 2), desc.getElementTypeDescriptor().getElementTypeDescriptor());
assertEquals(TypeDescriptor.nested(methodParameter, 3), desc.getElementTypeDescriptor().getElementTypeDescriptor().getMapValueTypeDescriptor());
assertEquals(Integer.class, desc.getElementTypeDescriptor().getElementTypeDescriptor().getMapKeyTypeDescriptor().getType());
assertEquals(Enum.class, desc.getElementTypeDescriptor().getElementTypeDescriptor().getMapValueTypeDescriptor().getType());
assertFalse(desc.isMap());
}代码示例来源：origin: spring-projects/spring-framework
@Test
public void map() {
TypeDescriptor desc = TypeDescriptor.map(Map.class, TypeDescriptor.valueOf(String.class), TypeDescriptor.valueOf(Integer.class));
assertEquals(Map.class, desc.getType());
assertEquals(Map.class, desc.getObjectType());
assertEquals("java.util.Map", desc.getName());
assertEquals("java.util.Map<java.lang.String, java.lang.Integer>", desc.toString());
assertTrue(!desc.isPrimitive());
assertEquals(0, desc.getAnnotations().length);
assertFalse(desc.isCollection());
assertFalse(desc.isArray());
assertTrue(desc.isMap());
assertEquals(String.class, desc.getMapKeyTypeDescriptor().getType());
assertEquals(Integer.class, desc.getMapValueTypeDescriptor().getType());
}代码示例来源：origin: spring-projects/spring-framework
@Test
public void collectionNested() {
TypeDescriptor desc = TypeDescriptor.collection(List.class, TypeDescriptor.collection(List.class, TypeDescriptor.valueOf(Integer.class)));
assertEquals(List.class, desc.getType());
assertEquals(List.class, desc.getObjectType());
assertEquals("java.util.List", desc.getName());
assertEquals("java.util.List<java.util.List<java.lang.Integer>>", desc.toString());
assertTrue(!desc.isPrimitive());
assertEquals(0, desc.getAnnotations().length);
assertTrue(desc.isCollection());
assertFalse(desc.isArray());
assertEquals(List.class, desc.getElementTypeDescriptor().getType());
assertEquals(TypeDescriptor.valueOf(Integer.class), desc.getElementTypeDescriptor().getElementTypeDescriptor());
assertFalse(desc.isMap());
}代码示例来源：origin: spring-projects/spring-framework
@Test
public void mapNested() {
TypeDescriptor desc = TypeDescriptor.map(Map.class, TypeDescriptor.valueOf(String.class),
TypeDescriptor.map(Map.class, TypeDescriptor.valueOf(String.class), TypeDescriptor.valueOf(Integer.class)));
assertEquals(Map.class, desc.getType());
assertEquals(Map.class, desc.getObjectType());
assertEquals("java.util.Map", desc.getName());
assertEquals("java.util.Map<java.lang.String, java.util.Map<java.lang.String, java.lang.Integer>>", desc.toString());
assertTrue(!desc.isPrimitive());
assertEquals(0, desc.getAnnotations().length);
assertFalse(desc.isCollection());
assertFalse(desc.isArray());
assertTrue(desc.isMap());
assertEquals(String.class, desc.getMapKeyTypeDescriptor().getType());
assertEquals(String.class, desc.getMapValueTypeDescriptor().getMapKeyTypeDescriptor().getType());
assertEquals(Integer.class, desc.getMapValueTypeDescriptor().getMapValueTypeDescriptor().getType());
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