程序包 cn.taketoday.buildpack.platform.json

类 MappedObject

java.lang.Object

cn.taketoday.buildpack.platform.json.MappedObject

直接已知子类:

BuilderMetadata, BuildpackLayersMetadata, BuildpackLayersMetadata.BuildpackLayerDetails, BuildpackMetadata, ContainerStatus, DockerConfigurationMetadata.DockerConfig, DockerConfigurationMetadata.DockerContext, Image, ImageArchiveManifest, ImageArchiveManifest.ManifestEntry, ImageConfig

public class MappedObject
extends Object

Base class for mapped JSON objects.

从以下版本开始:

4.0

作者:

Phillip Webb

嵌套类概要

嵌套类

修饰符和类型	类	说明
protected static interface	MappedObject.ContentReader<C>	Strategy used to read JSON content.
private static class	MappedObject.MappedInvocationHandler	InvocationHandler used to support valueAt with interface types.

字段概要

字段

修饰符和类型	字段	说明
private final MethodHandles.Lookup	lookup
private final JsonNode	node

构造器概要

构造器

限定符	构造器	说明
protected	MappedObject(JsonNode node, MethodHandles.Lookup lookup)	Create a new MappedObject instance.

方法概要

修饰符和类型	方法	说明
protected final JsonNode	getNode()	Return the source node of the mapped object.
protected static <T extends MappedObject> T	getRoot(Object proxy)
protected static <T extends MappedObject, C> T	of(C content, MappedObject.ContentReader<C> reader, Function<JsonNode,T> factory)	Factory method to create a new MappedObject instance.
protected static <T extends MappedObject> T	of(InputStream content, Function<JsonNode,T> factory)	Factory method to create a new MappedObject instance.
protected static <T extends MappedObject> T	of(String content, Function<JsonNode,T> factory)	Factory method to create a new MappedObject instance.
private static <T> T	valueAt(MappedObject root, JsonNode node, MethodHandles.Lookup lookup, String expression, Class<T> type)
protected static <T> T	valueAt(Object proxy, String expression, Class<T> type)
protected <T> T	valueAt(String expression, Class<T> type)	Get the value at the given JSON path expression as a specific type.

从类继承的方法 java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

字段详细资料

node

private final JsonNode node

lookup

private final MethodHandles.Lookup lookup

构造器详细资料

MappedObject

protected MappedObject(JsonNode node,
 MethodHandles.Lookup lookup)

Create a new MappedObject instance.

参数:

node - the source node

lookup - method handle lookup

方法详细资料

getNode

protected final JsonNode getNode()

Return the source node of the mapped object.

返回:

the source node

valueAt

protected <T> T valueAt(String expression,
 Class<T> type)

Get the value at the given JSON path expression as a specific type.

类型参数:

T - the data type

参数:

expression - the JSON path expression

type - the desired type. May be a simple JSON type or an interface

返回:

the value

getRoot

protected static <T extends MappedObject> T getRoot(Object proxy)

valueAt

protected static <T> T valueAt(Object proxy,
 String expression,
 Class<T> type)

valueAt

private static <T> T valueAt(MappedObject root,
 JsonNode node,
 MethodHandles.Lookup lookup,
 String expression,
 Class<T> type)

of

protected static <T extends MappedObject> T of(String content,
 Function<JsonNode,T> factory)
                                        throws IOException

Factory method to create a new MappedObject instance.

类型参数:

T - the mapped object type

参数:

content - the JSON content for the object

factory - a factory to create the mapped object from a JsonNode

返回:

the mapped object

抛出:

IOException - on IO error

of

protected static <T extends MappedObject> T of(InputStream content,
 Function<JsonNode,T> factory)
                                        throws IOException

Factory method to create a new MappedObject instance.

类型参数:

T - the mapped object type

参数:

content - the JSON content for the object

factory - a factory to create the mapped object from a JsonNode

返回:

the mapped object

抛出:

IOException - on IO error

of

protected static <T extends MappedObject,
C> T of(C content,
 MappedObject.ContentReader<C> reader,
 Function<JsonNode,T> factory)
                                          throws IOException

Factory method to create a new MappedObject instance.

类型参数:

T - the mapped object type

C - the content type

参数:

content - the JSON content for the object

reader - the content reader

factory - a factory to create the mapped object from a JsonNode

返回:

the mapped object

抛出:

IOException - on IO error