程序包 org.springframework.boot.buildpack.platform.json

类 MappedObject

java.lang.Object

org.springframework.boot.buildpack.platform.json.MappedObject

直接已知子类:

BlobReference, ContainerStatus, Image, ImageArchiveIndex, ImageArchiveManifest, ImageArchiveManifest.ManifestEntry, ImageConfig, Manifest, ManifestList

public class MappedObject
extends Object

Base class for mapped JSON objects.

从以下版本开始:

2.3.0

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.

构造器概要

构造器

限定符	构造器	说明
protected	MappedObject(com.fasterxml.jackson.databind.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 <T> List<T>	childrenAt(String expression, Function<com.fasterxml.jackson.databind.JsonNode,T> factory)	Get children at the given JSON path expression by constructing them using the given factory.
protected final com.fasterxml.jackson.databind.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<com.fasterxml.jackson.databind.JsonNode,T> factory)	Factory method to create a new MappedObject instance.
protected static <T extends MappedObject> T	of(InputStream content, Function<com.fasterxml.jackson.databind.JsonNode,T> factory)	Factory method to create a new MappedObject instance.
protected static <T extends MappedObject> T	of(String content, Function<com.fasterxml.jackson.databind.JsonNode,T> factory)	Factory method to create a new MappedObject instance.
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

构造器详细资料

MappedObject

protected MappedObject(com.fasterxml.jackson.databind.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 com.fasterxml.jackson.databind.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

childrenAt

protected <T> List<T> childrenAt(String expression,
 Function<com.fasterxml.jackson.databind.JsonNode,T> factory)

Get children at the given JSON path expression by constructing them using the given factory.

类型参数:

T - the child type

参数:

expression - the JSON path expression

factory - factory used to create the child

返回:

a list of children

从以下版本开始:

3.2.6

getRoot

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

valueAt

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

of

protected static <T extends MappedObject> T of(String content,
 Function<com.fasterxml.jackson.databind.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<com.fasterxml.jackson.databind.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<com.fasterxml.jackson.databind.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