Module io.ebean.core

Package io.ebeaninternal.server.json

Class ReadJson

java.lang.Object

io.ebeaninternal.server.json.ReadJson

All Implemented Interfaces:

SpiJsonReader

public final class ReadJson
extends Object
implements SpiJsonReader

Context for JSON read processing.

Constructor Summary

Constructors

Constructor	Description
ReadJson(BeanDescriptor<?> desc, com.fasterxml.jackson.core.JsonParser parser, JsonReadOptions readOptions, Object objectMapper, boolean update)	Construct with parser and readOptions.

Method Summary

Modifier and Type	Method	Description
void	beanVisitor(Object bean, Map<String,Object> unmappedProperties)	If there is a JsonReadBeanVisitor registered to the current path then call it's visit method with the bean and unmappedProperties.
SpiJsonReader	forJson(com.fasterxml.jackson.core.JsonParser moreJson)	Return a new instance of ReadJson using the existing context but with a new JsonParser.
com.fasterxml.jackson.databind.ObjectMapper	mapper()	Return the objectMapper used for this request.
com.fasterxml.jackson.core.JsonToken	nextToken()	Return the next JsonToken from the underlying parser.
com.fasterxml.jackson.core.JsonParser	parser()	Return the JsonParser.
PersistenceContext	persistenceContext()	Return the persistence context being used if any.
<T> void	persistenceContextPut(Object beanId, T currentBean)	Add the bean to the persistence context.
Object	persistenceContextPutIfAbsent(Object id, EntityBean bean, BeanDescriptor<?> beanDesc)	Put the bean into the persistence context.
void	popPath()	Pop the path stack.
void	pushPath(String path)	Push the path onto the stack (traversing a 1-M or M-1 etc)
Object	readValueUsingObjectMapper(Class<?> propertyType)	Read the property value using Jackson ObjectMapper.
boolean	update()	Do we update an existing bean?

Methods inherited from class java.lang.Object

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

Constructor Details

ReadJson

public ReadJson(BeanDescriptor<?> desc,
 com.fasterxml.jackson.core.JsonParser parser,
 JsonReadOptions readOptions,
 Object objectMapper,
 boolean update)

Construct with parser and readOptions.

Method Details

persistenceContext

public PersistenceContext persistenceContext()

Return the persistence context being used if any.

Specified by:

persistenceContext in interface SpiJsonReader

forJson

public SpiJsonReader forJson(com.fasterxml.jackson.core.JsonParser moreJson)

Return a new instance of ReadJson using the existing context but with a new JsonParser.

Specified by:

forJson in interface SpiJsonReader

persistenceContextPut

public <T> void persistenceContextPut(Object beanId,
 T currentBean)

Add the bean to the persistence context.

Specified by:

persistenceContextPut in interface SpiJsonReader

persistenceContextPutIfAbsent

public Object persistenceContextPutIfAbsent(Object id,
 EntityBean bean,
 BeanDescriptor<?> beanDesc)

Put the bean into the persistence context. If there is already a matching bean in the persistence context then return that instance else return null.

Specified by:

persistenceContextPutIfAbsent in interface SpiJsonReader

mapper

public com.fasterxml.jackson.databind.ObjectMapper mapper()

Return the objectMapper used for this request.

Specified by:

mapper in interface SpiJsonReader

parser

public com.fasterxml.jackson.core.JsonParser parser()

Return the JsonParser.

Specified by:

parser in interface SpiJsonReader

nextToken

public com.fasterxml.jackson.core.JsonToken nextToken()
                                               throws IOException

Return the next JsonToken from the underlying parser.

Specified by:

nextToken in interface SpiJsonReader

Throws:

IOException

pushPath

public void pushPath(String path)

Push the path onto the stack (traversing a 1-M or M-1 etc)

Specified by:

pushPath in interface SpiJsonReader

popPath

public void popPath()

Pop the path stack.

Specified by:

popPath in interface SpiJsonReader

beanVisitor

public void beanVisitor(Object bean,
 Map<String,Object> unmappedProperties)

If there is a JsonReadBeanVisitor registered to the current path then call it's visit method with the bean and unmappedProperties.

Specified by:

beanVisitor in interface SpiJsonReader

readValueUsingObjectMapper

public Object readValueUsingObjectMapper(Class<?> propertyType)
                                  throws IOException

Read the property value using Jackson ObjectMapper.

Typically this is used to read Transient properties where the type is unknown to Ebean.

Specified by:

readValueUsingObjectMapper in interface SpiJsonReader

Throws:

IOException

update

public boolean update()

Do we update an existing bean? This meeans we have to set values via intercept and handle collections.

Specified by:

update in interface SpiJsonReader