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Jackson Data Binding Source Code
Jackson is "the Java JSON library" or "the best JSON parser for Java". Or simply as "JSON for Java".
Jackson Databind Source Code files are provided in the source packge (jackson-databind-2.12.4-sources.jar). You can download it at Jackson Maven Website.
You can also browse Jackson Databind Source Code below:
✍: FYIcenter.com
⏎ com/fasterxml/jackson/databind/ser/PropertyWriter.java
package com.fasterxml.jackson.databind.ser; import java.lang.annotation.Annotation; import com.fasterxml.jackson.core.JsonGenerator; import com.fasterxml.jackson.databind.*; import com.fasterxml.jackson.databind.introspect.BeanPropertyDefinition; import com.fasterxml.jackson.databind.introspect.ConcreteBeanPropertyBase; import com.fasterxml.jackson.databind.jsonFormatVisitors.JsonObjectFormatVisitor; import com.fasterxml.jackson.databind.node.ObjectNode; /** * Base class for writers used to output property values (name-value pairs) * as key/value pairs via streaming API. This is the most generic abstraction * implemented by both POJO and {@link java.util.Map} serializers, and invoked * by filtering functionality. * * @since 2.3 */ public abstract class PropertyWriter extends ConcreteBeanPropertyBase // since 2.7 implements java.io.Serializable { private static final long serialVersionUID = 1L; protected PropertyWriter(PropertyMetadata md) { super(md); } protected PropertyWriter(BeanPropertyDefinition propDef) { super(propDef.getMetadata()); } protected PropertyWriter(PropertyWriter base) { super(base); } /* /********************************************************** /* Metadata access /********************************************************** */ @Override public abstract String getName(); @Override public abstract PropertyName getFullName(); /** * Convenience method for accessing annotation that may be associated * either directly on property, or, if not, via enclosing class (context). * This allows adding baseline contextual annotations, for example, by adding * an annotation for a given class and making that apply to all properties * unless overridden by per-property annotations. *<p> * This method is functionally equivalent to: *<pre> * MyAnnotation ann = propWriter.getAnnotation(MyAnnotation.class); * if (ann == null) { * ann = propWriter.getContextAnnotation(MyAnnotation.class); * } *</pre> * that is, tries to find a property annotation first, but if one is not * found, tries to find context-annotation (from enclosing class) of * same type. * * @since 2.5 */ public <A extends Annotation> A findAnnotation(Class<A> acls) { A ann = getAnnotation(acls); if (ann == null) { ann = getContextAnnotation(acls); } return ann; } /** * Method for accessing annotations directly declared for property that this * writer is associated with. * * @since 2.5 */ @Override public abstract <A extends Annotation> A getAnnotation(Class<A> acls); /** * Method for accessing annotations declared in context of the property that this * writer is associated with; usually this means annotations on enclosing class * for property. * * @since 2.5 */ @Override public abstract <A extends Annotation> A getContextAnnotation(Class<A> acls); /* /********************************************************** /* Serialization methods, regular output /********************************************************** */ /** * The main serialization method called by filter when property is to be written normally. */ public abstract void serializeAsField(Object value, JsonGenerator jgen, SerializerProvider provider) throws Exception; /** * Serialization method that filter needs to call in cases where property is to be * filtered, but the underlying data format requires a placeholder of some kind. * This is usually the case for tabular (positional) data formats such as CSV. */ public abstract void serializeAsOmittedField(Object value, JsonGenerator jgen, SerializerProvider provider) throws Exception; /* /********************************************************** /* Serialization methods, explicit positional/tabular formats /********************************************************** */ /** * Serialization method called when output is to be done as an array, * that is, not using property names. This is needed when serializing * container ({@link java.util.Collection}, array) types, * or POJOs using <code>tabular</code> ("as array") output format. *<p> * Note that this mode of operation is independent of underlying * data format; so it is typically NOT called for fully tabular formats such as CSV, * where logical output is still as form of POJOs. */ public abstract void serializeAsElement(Object value, JsonGenerator jgen, SerializerProvider provider) throws Exception; /** * Serialization method called when doing tabular (positional) output from databind, * but then value is to be omitted. This requires output of a placeholder value * of some sort; often similar to {@link #serializeAsOmittedField}. */ public abstract void serializeAsPlaceholder(Object value, JsonGenerator jgen, SerializerProvider provider) throws Exception; /* /********************************************************** /* Schema-related /********************************************************** */ /** * Traversal method used for things like JSON Schema generation, or * POJO introspection. */ @Override public abstract void depositSchemaProperty(JsonObjectFormatVisitor objectVisitor, SerializerProvider provider) throws JsonMappingException; /** * Legacy method called for JSON Schema generation; should not be called by new code * * @deprecated Since 2.2 */ @Deprecated public abstract void depositSchemaProperty(ObjectNode propertiesNode, SerializerProvider provider) throws JsonMappingException; }
⏎ com/fasterxml/jackson/databind/ser/PropertyWriter.java
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⇒ Jackson Annotations Source Code
⇠Download and Install Jackson Binary Package
⇑ Downloading and Reviewing jackson-*.jar
⇑⇑ Jackson - Java JSON library
2022-03-29, 31701👍, 0💬
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