Top Description Fields Constructors Methods
com.fasterxml.jackson.datatype.guava.ser

public Class CacheSerializer

extends ContainerSerializer<Cache<?, ?>>
implements ContextualSerializer
Class Inheritance
All Implemented Interfaces
com.fasterxml.jackson.databind.ser.ContextualSerializer
Imports
com.fasterxml.jackson.annotation.JsonFormat, .JsonIgnoreProperties, com.fasterxml.jackson.core.JsonGenerator, .JsonToken, com.fasterxml.jackson.core.type.WritableTypeId, com.fasterxml.jackson.databind.*, com.fasterxml.jackson.databind.introspect.AnnotatedMember, com.fasterxml.jackson.databind.jsonFormatVisitors.JsonArrayFormatVisitor, .JsonFormatVisitable, .JsonFormatVisitorWrapper, .JsonMapFormatVisitor, com.fasterxml.jackson.databind.jsontype.TypeSerializer, com.fasterxml.jackson.databind.ser.ContainerSerializer, .ContextualSerializer, .PropertyFilter, com.fasterxml.jackson.databind.ser.impl.PropertySerializerMap, com.fasterxml.jackson.databind.ser.std.MapProperty, com.fasterxml.jackson.databind.type.MapLikeType, com.google.common.cache.Cache, java.io.IOException, java.util.*

References Deprecated

ContainerSerializer is deprecated or references (maybe indirectly) at least one deprecated element.

See corresponding docs for further information.

Serializer for Guava's Cache values.

Field Summary

Modifier and TypeField and Description
protected PropertySerializerMap
_dynamicValueSerializers

If value type can not be statically determined, mapping from runtime value types to serializers are stored in this object.

protected final Object
_filterId

The id of the property filter to use, if any; null if none.

protected final Set<String>
_ignoredEntries

Set of entries to omit during serialization, if any

private final JsonSerializer<Object>
private final BeanProperty
protected final boolean
_sortKeys

Flag set if output is forced to be sorted by keys (usually due to annotation).

private final MapLikeType
private final JsonSerializer<Object>
private final TypeSerializer
private static final long

Constructor Summary

AccessConstructor and Description
public
CacheSerializer(MapLikeType type, BeanDescription beanDesc, JsonSerializer<Object> keySerializer, TypeSerializer vts, JsonSerializer<Object> valueSerializer, Set<String> ignoredEntries, Object filterId)

protected
CacheSerializer(CacheSerializer src, BeanProperty property, JsonSerializer<?> keySerializer, TypeSerializer vts, JsonSerializer<?> valueSerializer, Set<String> ignoredEntries, Object filterId, boolean sortKeys)
References Deprecated CacheSerializer is deprecated or references (maybe indirectly) at least one deprecated element.

Method Summary

Modifier and TypeMethod and Description
protected final JsonSerializer<Object>
protected final JsonSerializer<Object>
protected Map<?, ?>
protected ContainerSerializer<?>
_withValueTypeSerializer(TypeSerializer typeSer)

Implements abstract com.fasterxml.jackson.databind.ser.ContainerSerializer._withValueTypeSerializer.

References Deprecated ContainerSerializer is deprecated or references (maybe indirectly) at least one deprecated element.

Method that needs to be implemented to allow construction of a new serializer object with given TypeSerializer, used when addition type information is to be embedded.

protected void
public void
public JsonSerializer<?>
createContextual(SerializerProvider
Serializer provider to use for accessing config, other serializers
provider
,
BeanProperty
Method or field that represents the property (and is used to access value to serialize). Should be available; but there may be cases where caller cannot provide it and null is passed instead (in which case impls usually pass 'this' serializer as is)
property
)

Implements com.fasterxml.jackson.databind.ser.ContextualSerializer.createContextual.

Method called to see if a different (or differently configured) serializer is needed to serialize values of specified property.

public JsonSerializer<?>
getContentSerializer()

Implements abstract com.fasterxml.jackson.databind.ser.ContainerSerializer.getContentSerializer.

Accessor for serializer used for serializing contents (List and array elements, Map values etc) of the container for which this serializer is used, if it is known statically.

public JavaType
getContentType()

Implements abstract com.fasterxml.jackson.databind.ser.ContainerSerializer.getContentType.

Accessor for finding declared (static) element type for type this serializer is used for.

public boolean
hasSingleElement(Cache<?, ?> cache)

Implements abstract com.fasterxml.jackson.databind.ser.ContainerSerializer.hasSingleElement.

Method called to determine if the given value (of type handled by this serializer) contains exactly one element.

public boolean
isEmpty(SerializerProvider prov, Cache<?, ?> value)

Overrides com.fasterxml.jackson.databind.JsonSerializer.isEmpty.

Method called to check whether given serializable value is considered "empty" value (for purposes of suppressing serialization of empty values).

public void
serialize(Cache<?, ?>
Value to serialize; can not be null.
value
,
JsonGenerator
Generator used to output resulting Json content
gen
,
SerializerProvider
Provider that can be used to get serializers for serializing Objects value contains, if any.
provider
)

Implements abstract com.fasterxml.jackson.databind.ser.std.StdSerializer.serialize.

Method that can be called to ask implementation to serialize values of type this serializer handles.

private void
private void
public void
serializeWithType(Cache<?, ?>
Value to serialize; can not be null.
value
,
JsonGenerator
Generator used to output resulting Json content
gen
,
SerializerProvider
Provider that can be used to get serializers for serializing Objects value contains, if any.
ctxt
,
TypeSerializer
Type serializer to use for including type information
typeSer
)

Overrides com.fasterxml.jackson.databind.JsonSerializer.serializeWithType.

Method that can be called to ask implementation to serialize values of type this serializer handles, using specified type serializer for embedding necessary type information.

protected CacheSerializer
withResolved(BeanProperty property, JsonSerializer<?> keySer, TypeSerializer vts, JsonSerializer<?> valueSer, Set<String> ignored, Object filterId, boolean sortKeys)
References Deprecated CacheSerializer is deprecated or references (maybe indirectly) at least one deprecated element.

Inherited from com.fasterxml.jackson.databind.ser.ContainerSerializer:
hasContentTypeAnnotationwithValueTypeSerializer

Field Detail

_dynamicValueSerializersback to summary
protected PropertySerializerMap _dynamicValueSerializers

If value type can not be statically determined, mapping from runtime value types to serializers are stored in this object.

Since
2.16
_filterIdback to summary
protected final Object _filterId

The id of the property filter to use, if any; null if none.

Since
2.16
_ignoredEntriesback to summary
protected final Set<String> _ignoredEntries

Set of entries to omit during serialization, if any

Since
2.16
_keySerializerback to summary
private final JsonSerializer<Object> _keySerializer
_propertyback to summary
private final BeanProperty _property
_sortKeysback to summary
protected final boolean _sortKeys

Flag set if output is forced to be sorted by keys (usually due to annotation).

Since
2.16
_typeback to summary
private final MapLikeType _type
_valueSerializerback to summary
private final JsonSerializer<Object> _valueSerializer
_valueTypeSerializerback to summary
private final TypeSerializer _valueTypeSerializer
serialVersionUIDback to summary
private static final long serialVersionUID

Hides com.fasterxml.jackson.databind.ser.std.StdSerializer.serialVersionUID.

Constructor Detail

CacheSerializerback to summary
public CacheSerializer(MapLikeType type, BeanDescription beanDesc, JsonSerializer<Object> keySerializer, TypeSerializer vts, JsonSerializer<Object> valueSerializer, Set<String> ignoredEntries, Object filterId)
Since
2.16
CacheSerializerback to summary
protected CacheSerializer(CacheSerializer src, BeanProperty property, JsonSerializer<?> keySerializer, TypeSerializer vts, JsonSerializer<?> valueSerializer, Set<String> ignoredEntries, Object filterId, boolean sortKeys)

References Deprecated

CacheSerializer is deprecated or references (maybe indirectly) at least one deprecated element.

See corresponding docs for further information.

Annotations
@SuppressWarnings:unchecked
Since
2.16

Method Detail

_findAndAddDynamicback to summary
protected final JsonSerializer<Object> _findAndAddDynamic(PropertySerializerMap map, Class<?> type, SerializerProvider provider) throws JsonMappingException
Since
2.16
_findAndAddDynamicback to summary
protected final JsonSerializer<Object> _findAndAddDynamic(PropertySerializerMap map, JavaType type, SerializerProvider provider) throws JsonMappingException
Since
2.16
_orderEntriesByKeyback to summary
protected Map<?, ?> _orderEntriesByKey(Map<?, ?> value, JsonGenerator gen, SerializerProvider provider) throws IOException
Since
2.16
_withValueTypeSerializerback to summary
protected ContainerSerializer<?> _withValueTypeSerializer(TypeSerializer typeSer)

Implements abstract com.fasterxml.jackson.databind.ser.ContainerSerializer._withValueTypeSerializer.

Doc from com.fasterxml.jackson.databind.ser.ContainerSerializer._withValueTypeSerializer.

References Deprecated

ContainerSerializer is deprecated or references (maybe indirectly) at least one deprecated element.

See corresponding docs for further information.

Method that needs to be implemented to allow construction of a new serializer object with given TypeSerializer, used when addition type information is to be embedded.

Annotations
@Override
_writeContentsback to summary
protected void _writeContents(Cache<?, ?> cache, JsonGenerator gen, SerializerProvider provider) throws IOException
Since
2.16
acceptJsonFormatVisitorback to summary
public void acceptJsonFormatVisitor(JsonFormatVisitorWrapper visitor, JavaType typeHint) throws JsonMappingException

Overrides com.fasterxml.jackson.databind.ser.std.StdSerializer.acceptJsonFormatVisitor.

Implements com.fasterxml.jackson.databind.jsonFormatVisitors.JsonFormatVisitable.acceptJsonFormatVisitor.

Doc from com.fasterxml.jackson.databind.ser.std.StdSerializer.acceptJsonFormatVisitor.

Default implementation specifies no format. This behavior is usually overriden by custom serializers.

Parameters
typeHint:JavaType

Doc from com.fasterxml.jackson.databind.jsonFormatVisitors.JsonFormatVisitable.acceptJsonFormatVisitor.

Type of element (entity like property) being visited

Annotations
@Override
createContextualback to summary
public JsonSerializer<?> createContextual(SerializerProvider provider, BeanProperty property) throws JsonMappingException

Implements com.fasterxml.jackson.databind.ser.ContextualSerializer.createContextual.

Doc from com.fasterxml.jackson.databind.ser.ContextualSerializer.createContextual.

Method called to see if a different (or differently configured) serializer is needed to serialize values of specified property. Note that instance that this method is called on is typically shared one and as a result method should NOT modify this instance but rather construct and return a new instance. This instance should only be returned as-is, in case it is already suitable for use.

Parameters
provider:SerializerProvider

Serializer provider to use for accessing config, other serializers

property:BeanProperty

Method or field that represents the property (and is used to access value to serialize). Should be available; but there may be cases where caller cannot provide it and null is passed instead (in which case impls usually pass 'this' serializer as is)

Returns:JsonSerializer<?>

Serializer to use for serializing values of specified property; may be this instance or a new instance.

Annotations
@Override
getContentSerializerback to summary
public JsonSerializer<?> getContentSerializer()

Implements abstract com.fasterxml.jackson.databind.ser.ContainerSerializer.getContentSerializer.

Doc from com.fasterxml.jackson.databind.ser.ContainerSerializer.getContentSerializer.

Accessor for serializer used for serializing contents (List and array elements, Map values etc) of the container for which this serializer is used, if it is known statically. Note that for dynamic types this may return null; if so, caller has to instead use getContentType() and com.fasterxml.jackson.databind.SerializerProvider#findContentValueSerializer.

Annotations
@Override
getContentTypeback to summary
public JavaType getContentType()

Implements abstract com.fasterxml.jackson.databind.ser.ContainerSerializer.getContentType.

Doc from com.fasterxml.jackson.databind.ser.ContainerSerializer.getContentType.

Accessor for finding declared (static) element type for type this serializer is used for.

Annotations
@Override
hasSingleElementback to summary
public boolean hasSingleElement(Cache<?, ?> cache)

Implements abstract com.fasterxml.jackson.databind.ser.ContainerSerializer.hasSingleElement.

Doc from com.fasterxml.jackson.databind.ser.ContainerSerializer.hasSingleElement.

Method called to determine if the given value (of type handled by this serializer) contains exactly one element.

Note

although it might seem sensible to instead define something like "getElementCount()" method, this would not work well for containers that do not keep track of size (like linked lists may not).

Note, too, that as of now (2.9) this method is only called by serializer itself; and specifically is not used for non-array/collection types like Map or Map.Entry instances.

Annotations
@Override
isEmptyback to summary
public boolean isEmpty(SerializerProvider prov, Cache<?, ?> value)

Overrides com.fasterxml.jackson.databind.JsonSerializer.isEmpty.

Doc from com.fasterxml.jackson.databind.JsonSerializer.isEmpty.

Method called to check whether given serializable value is considered "empty" value (for purposes of suppressing serialization of empty values).

Default implementation will consider only null values to be empty.

Note

replaces isEmpty(Object), which was deprecated in 2.5

Annotations
@Override
serializeback to summary
public void serialize(Cache<?, ?> value, JsonGenerator gen, SerializerProvider provider) throws IOException

Implements abstract com.fasterxml.jackson.databind.ser.std.StdSerializer.serialize.

Doc from com.fasterxml.jackson.databind.JsonSerializer.serialize.

Method that can be called to ask implementation to serialize values of type this serializer handles.

Parameters
value:Cache<?, ?>

Value to serialize; can not be null.

gen:JsonGenerator

Generator used to output resulting Json content

provider:SerializerProvider

Provider that can be used to get serializers for serializing Objects value contains, if any.

Annotations
@Override
serializeFieldsback to summary
private void serializeFields(Map<?, ?> mmap, JsonGenerator gen, SerializerProvider provider) throws IOException
Since
2.16
serializeFilteredFieldsback to summary
private void serializeFilteredFields(Map<?, ?> map, JsonGenerator gen, SerializerProvider provider) throws IOException
Since
2.16
serializeWithTypeback to summary
public void serializeWithType(Cache<?, ?> value, JsonGenerator gen, SerializerProvider ctxt, TypeSerializer typeSer) throws IOException

Overrides com.fasterxml.jackson.databind.JsonSerializer.serializeWithType.

Doc from com.fasterxml.jackson.databind.JsonSerializer.serializeWithType.

Method that can be called to ask implementation to serialize values of type this serializer handles, using specified type serializer for embedding necessary type information.

Default implementation will throw UnsupportedOperationException to indicate that proper type handling needs to be implemented.

For simple datatypes written as a single scalar value (JSON String, Number, Boolean), implementation would look like:

  // note: method to call depends on whether this type is serialized as JSON scalar, object or Array!
  typeSer.writeTypePrefixForScalar(value, gen);
  serialize(value, gen, provider);
  typeSer.writeTypeSuffixForScalar(value, gen);
and implementations for type serialized as JSON Arrays or Objects would differ slightly, as START-ARRAY/END-ARRAY and START-OBJECT/END-OBJECT pairs need to be properly handled with respect to serializing of contents.
Parameters
value:Cache<?, ?>

Value to serialize; can not be null.

gen:JsonGenerator

Generator used to output resulting Json content

ctxt:SerializerProvider

Provider that can be used to get serializers for serializing Objects value contains, if any.

typeSer:TypeSerializer

Type serializer to use for including type information

Annotations
@Override
withResolvedback to summary
protected CacheSerializer withResolved(BeanProperty property, JsonSerializer<?> keySer, TypeSerializer vts, JsonSerializer<?> valueSer, Set<String> ignored, Object filterId, boolean sortKeys)

References Deprecated

CacheSerializer is deprecated or references (maybe indirectly) at least one deprecated element.

See corresponding docs for further information.

Since
2.16