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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/node/POJONode.java
package com.fasterxml.jackson.databind.node; import java.io.IOException; import com.fasterxml.jackson.core.*; import com.fasterxml.jackson.databind.JsonSerializable; import com.fasterxml.jackson.databind.SerializerProvider; /** * Value node that contains a wrapped POJO, to be serialized as * a JSON constructed through data mapping (usually done by * calling {@link com.fasterxml.jackson.databind.ObjectMapper}). */ public class POJONode extends ValueNode { private static final long serialVersionUID = 2L; protected final Object _value; public POJONode(Object v) { _value = v; } /* /********************************************************** /* Base class overrides /********************************************************** */ @Override public JsonNodeType getNodeType() { return JsonNodeType.POJO; } @Override public JsonToken asToken() { return JsonToken.VALUE_EMBEDDED_OBJECT; } /** * As it is possible that some implementations embed byte[] as POJONode * (despite optimal being {@link BinaryNode}), let's add support for exposing * binary data here too. */ @Override public byte[] binaryValue() throws IOException { if (_value instanceof byte[]) { return (byte[]) _value; } return super.binaryValue(); } /* /********************************************************** /* General type coercions /********************************************************** */ @Override public String asText() { return (_value == null) ? "null" : _value.toString(); } @Override public String asText(String defaultValue) { return (_value == null) ? defaultValue : _value.toString(); } @Override public boolean asBoolean(boolean defaultValue) { if (_value != null && _value instanceof Boolean) { return ((Boolean) _value).booleanValue(); } return defaultValue; } @Override public int asInt(int defaultValue) { if (_value instanceof Number) { return ((Number) _value).intValue(); } return defaultValue; } @Override public long asLong(long defaultValue) { if (_value instanceof Number) { return ((Number) _value).longValue(); } return defaultValue; } @Override public double asDouble(double defaultValue) { if (_value instanceof Number) { return ((Number) _value).doubleValue(); } return defaultValue; } /* /********************************************************** /* Public API, serialization /********************************************************** */ @Override public final void serialize(JsonGenerator gen, SerializerProvider ctxt) throws IOException { if (_value == null) { ctxt.defaultSerializeNull(gen); } else if (_value instanceof JsonSerializable) { ((JsonSerializable) _value).serialize(gen, ctxt); } else { // 25-May-2018, tatu: [databind#1991] do not call via generator but through context; // this to preserve contextual information ctxt.defaultSerializeValue(_value, gen); } } /* /********************************************************** /* Extended API /********************************************************** */ /** * Method that can be used to access the POJO this node wraps. */ public Object getPojo() { return _value; } /* /********************************************************** /* Overridden standard methods /********************************************************** */ @Override public boolean equals(Object o) { if (o == this) return true; if (o == null) return false; if (o instanceof POJONode) { return _pojoEquals((POJONode) o); } return false; } /** * @since 2.3 */ protected boolean _pojoEquals(POJONode other) { if (_value == null) { return other._value == null; } return _value.equals(other._value); } @Override public int hashCode() { return _value.hashCode(); } }
⏎ com/fasterxml/jackson/databind/node/POJONode.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, 31947👍, 0💬
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