POJONode (Jackson JSON Processor)
Date: 2013-07-14

org.codehaus.jackson.node

## Class POJONode

- java.lang.Object
- - org.codehaus.jackson.JsonNode
  - - org.codehaus.jackson.node.BaseJsonNode
    - - org.codehaus.jackson.node.ValueNode
      - - org.codehaus.jackson.node.POJONode

- All Implemented Interfaces:
    Iterable<JsonNode>, JsonSerializable, JsonSerializableWithType

      public final class POJONode
      extends ValueNode

  Value node that contains a wrapped POJO, to be serialized as a JSON constructed through data mapping (usually done by calling `ObjectMapper`).

- - ### Field Summary

    Fields
    Modifier and Type | Field and Description
    --- | ---
    `protected Object` | `_value`

    - ### Fields inherited from class org.codehaus.jackson.JsonNode

      `NO_NODES, NO_STRINGS`

  - ### Constructor Summary

    Constructors
    Constructor and Description
    `POJONode(Object v)`

  - ### Method Summary

    Methods
    Modifier and Type | Method and Description
    --- | ---
    `boolean` | `asBoolean(boolean defaultValue)` Method that will try to convert value of this node to a Java boolean.
    `double` | `asDouble(double defaultValue)` Method that will try to convert value of this node to a Java double.
    `int` | `asInt(int defaultValue)` Method that will try to convert value of this node to a Java int.
    `long` | `asLong(long defaultValue)` Method that will try to convert value of this node to a Java long.
    `String` | `asText()` Method that will return valid String representation of the container value, if the node is a value node (method `JsonNode.isValueNode()` returns true), otherwise empty String.
    `JsonToken` | `asToken()` Method that can be used for efficient type detection when using stream abstraction for traversing nodes.
    `boolean` | `equals(Object o)` Equality for node objects is defined as full (deep) value equality.
    `byte[]` | `getBinaryValue()` Method to use for accessing binary content of binary nodes (nodes for which `JsonNode.isBinary()` returns true); or for Text Nodes (ones for which `JsonNode.getTextValue()` returns non-null value), to read decoded base64 data.
    `Object` | `getPojo()` Method that can be used to access the POJO this node wraps.
    `int` | `hashCode()`
    `boolean` | `isPojo()` Method that can be used to check if the node is a wrapper for a POJO ("Plain Old Java Object" aka "bean".
    `void` | `serialize(JsonGenerator jg, SerializerProvider provider)` Method called to serialize node instances using given generator.
    `String` | `toString()` Note: marked as abstract to ensure all implementation classes define it properly.

    - ### Methods inherited from class org.codehaus.jackson.node.ValueNode

      `isValueNode, path, path, serializeWithType`

    - ### Methods inherited from class org.codehaus.jackson.node.BaseJsonNode

      `findParent, findParents, findPath, findValue, findValues, findValuesAsText, getNumberType, traverse`

    - ### Methods inherited from class org.codehaus.jackson.JsonNode

      `asBoolean, asDouble, asInt, asLong, findParents, findValues, findValuesAsText, get, get, getBigIntegerValue, getBooleanValue, getDecimalValue, getDoubleValue, getElements, getFieldNames, getFields, getIntValue, getLongValue, getNumberValue, getPath, getPath, getTextValue, getValueAsBoolean, getValueAsBoolean, getValueAsDouble, getValueAsDouble, getValueAsInt, getValueAsInt, getValueAsLong, getValueAsLong, getValueAsText, has, has, isArray, isBigDecimal, isBigInteger, isBinary, isBoolean, isContainerNode, isDouble, isFloatingPointNumber, isInt, isIntegralNumber, isLong, isMissingNode, isNull, isNumber, isObject, isTextual, iterator, size, with`

    - ### Methods inherited from class java.lang.Object

      `clone, finalize, getClass, notify, notifyAll, wait, wait, wait`

- - ### Field Detail

    - #### _value

          protected final Object _value

  - ### Constructor Detail

    - #### POJONode

          public POJONode(Object v)

  - ### Method Detail

    - #### asToken

          public JsonToken asToken()

      Description copied from class: `BaseJsonNode`
      Method that can be used for efficient type detection when using stream abstraction for traversing nodes. Will return the first `JsonToken` that equivalent stream event would produce (for most nodes there is just one token but for structured/container types multiple)
      Specified by:
        `asToken` in class `ValueNode`

    - #### isPojo

          public boolean isPojo()

      Description copied from class: `JsonNode`
      Method that can be used to check if the node is a wrapper for a POJO ("Plain Old Java Object" aka "bean". Returns true only for instances of `POJONode`.
      Overrides:
        `isPojo` in class `JsonNode`
      Returns:
        True if this node wraps a POJO

    - #### getBinaryValue

          public byte[] getBinaryValue()
                                throws IOException

      Description copied from class: `JsonNode`
      Method to use for accessing binary content of binary nodes (nodes for which `JsonNode.isBinary()` returns true); or for Text Nodes (ones for which `JsonNode.getTextValue()` returns non-null value), to read decoded base64 data. For other types of nodes, returns null.
      Overrides:
        `getBinaryValue` in class `JsonNode`
      Returns:
        Binary data this node contains, iff it is a binary node; null otherwise
      Throws:
        `IOException`

    - #### asText

          public String asText()

      Description copied from class: `JsonNode`
      Method that will return valid String representation of the container value, if the node is a value node (method `JsonNode.isValueNode()` returns true), otherwise empty String.
      Specified by:
        `asText` in class `JsonNode`

    - #### asBoolean

          public boolean asBoolean(boolean defaultValue)

      Description copied from class: `JsonNode`
      Method that will try to convert value of this node to a Java boolean. JSON booleans map naturally; integer numbers other than 0 map to true, and 0 maps to false and Strings 'true' and 'false' map to corresponding values.

      If representation can not be converted to a boolean value (including structured types like Objects and Arrays), specified defaultValue will be returned; no exceptions are thrown.

      Overrides:
        `asBoolean` in class `JsonNode`

    - #### asInt

          public int asInt(int defaultValue)

      Description copied from class: `JsonNode`
      Method that will try to convert value of this node to a Java int. Numbers are coerced using default Java rules; booleans convert to 0 (false) and 1 (true), and Strings are parsed using default Java language integer parsing rules.

      If representation can not be converted to an int (including structured types like Objects and Arrays), specified defaultValue will be returned; no exceptions are thrown.

      Overrides:
        `asInt` in class `JsonNode`

    - #### asLong

          public long asLong(long defaultValue)

      Description copied from class: `JsonNode`
      Method that will try to convert value of this node to a Java long. Numbers are coerced using default Java rules; booleans convert to 0 (false) and 1 (true), and Strings are parsed using default Java language integer parsing rules.

      If representation can not be converted to an long (including structured types like Objects and Arrays), specified defaultValue will be returned; no exceptions are thrown.

      Overrides:
        `asLong` in class `JsonNode`

    - #### asDouble

          public double asDouble(double defaultValue)

      Description copied from class: `JsonNode`
      Method that will try to convert value of this node to a Java double. Numbers are coerced using default Java rules; booleans convert to 0.0 (false) and 1.0 (true), and Strings are parsed using default Java language integer parsing rules.

      If representation can not be converted to an int (including structured types like Objects and Arrays), specified defaultValue will be returned; no exceptions are thrown.

      Overrides:
        `asDouble` in class `JsonNode`

    - #### serialize

          public final void serialize(JsonGenerator jg,
                       SerializerProvider provider)
                               throws IOException,
                                      JsonProcessingException

      Description copied from class: `BaseJsonNode`
      Method called to serialize node instances using given generator.
      Specified by:
        `serialize` in interface `JsonSerializable`
      Specified by:
        `serialize` in class `BaseJsonNode`
      Throws:
        `IOException`
        `JsonProcessingException`

    - #### getPojo

          public Object getPojo()

      Method that can be used to access the POJO this node wraps.

    - #### equals

          public boolean equals(Object o)

      Description copied from class: `JsonNode`
      Equality for node objects is defined as full (deep) value equality. This means that it is possible to compare complete JSON trees for equality by comparing equality of root nodes.

      Note: marked as abstract to ensure all implementation classes define it properly and not rely on definition from `Object`.

      Specified by:
        `equals` in class `JsonNode`

    - #### hashCode

          public int hashCode()

      Overrides:
        `hashCode` in class `Object`

    - #### toString

          public String toString()

      Description copied from class: `JsonNode`

      Note: marked as abstract to ensure all implementation classes define it properly.

      Overrides:
        `toString` in class `ValueNode`