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 Data Binding module allows you to converts JSON to and from POJO (Plain Old Java Object) using property accessor or using annotations.
  • 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/NumericNode.java

    package com.fasterxml.jackson.databind.node;
    
    import java.math.BigDecimal;
    import java.math.BigInteger;
    
    import com.fasterxml.jackson.core.JsonParser;
    
    /**
     * Intermediate value node used for numeric nodes.
     */
    public abstract class NumericNode
        extends ValueNode
    {
        private static final long serialVersionUID = 1L;
    
        protected NumericNode() { }
    
        @Override
        public final JsonNodeType getNodeType()
        {
            return JsonNodeType.NUMBER;
        }
    
        // // // Let's re-abstract so sub-classes handle them
    
        @Override
        public abstract JsonParser.NumberType numberType();
    
        @Override public abstract Number numberValue();
        @Override public abstract int intValue();
        @Override public abstract long longValue();
        @Override public abstract double doubleValue();
        @Override public abstract BigDecimal decimalValue();
        @Override public abstract BigInteger bigIntegerValue();
    
        @Override public abstract boolean canConvertToInt();
        @Override public abstract boolean canConvertToLong();
    
        /* 
        /**********************************************************
        /* General type coercions
        /**********************************************************
         */
    
        @Override
        public abstract String asText();
    
        @Override
        public final int asInt() {
            return intValue();
        }
    
        @Override
        public final int asInt(int defaultValue) {
            return intValue();
        }
    
        @Override
        public final long asLong() {
            return longValue();
        }
    
        @Override
        public final long asLong(long defaultValue) {
            return longValue();
        }
    
        @Override
        public final double asDouble() {
            return doubleValue();
        }
    
        @Override
        public final double asDouble(double defaultValue) {
            return doubleValue();
        }
    
        /* 
        /**********************************************************
        /* Other
        /**********************************************************
         */
    
        /**
         * Convenience method for checking whether this node is a
         * {@link FloatNode} or {@link DoubleNode} that contains
         * "not-a-number" (NaN) value.
         *
         * @since 2.9
         */
        public boolean isNaN() {
            return false;
        }
    
    }
    

    com/fasterxml/jackson/databind/node/NumericNode.java

     

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    2022-03-29, 32091👍, 0💬