JsonNodeFactory (jackson-databind 2.13.0 API)

java.lang.Object
- com.fasterxml.jackson.databind.node.JsonNodeFactory

All Implemented Interfaces:

JsonNodeCreator, Serializable
```
public class JsonNodeFactory
extends Object
implements Serializable, JsonNodeCreator
```
Base class that specifies methods for getting access to Node instances (newly constructed, or shared, depending on type), as well as basic implementation of the methods. Designed to be sub-classed if extended functionality (additions to behavior of node types, mostly) is needed.

See Also:

Serialized Form

Field Summary

Fields
Modifier and Type	Field and Description
`static JsonNodeFactory`	`instance` Default singleton instance that construct "standard" node instances: given that this class is stateless, a globally shared singleton can be used.

Constructor Summary

Constructors
Modifier Constructor and Description

protected JsonNodeFactory()
Default constructor

JsonNodeFactory(boolean bigDecimalExact)
Main constructor

Constructors
Modifier	Constructor and Description
`protected`	`JsonNodeFactory()` Default constructor
	`JsonNodeFactory(boolean bigDecimalExact)` Main constructor

Method Summary

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method and Description
`protected boolean`	`_inIntRange(long l)`
`ArrayNode`	`arrayNode()` Factory method for constructing an empty JSON Array node
`ArrayNode`	`arrayNode(int capacity)` Factory method for constructing a JSON Array node with an initial capacity
`BinaryNode`	`binaryNode(byte[] data)` Factory method for constructing a node that represents given binary data, and will get serialized as equivalent base64-encoded String value
`BinaryNode`	`binaryNode(byte[] data, int offset, int length)` Factory method for constructing a node that represents given binary data, and will get serialized as equivalent base64-encoded String value
`BooleanNode`	`booleanNode(boolean v)` Factory method for getting an instance of JSON boolean value (either literal 'true' or 'false')
`JsonNode`	`missingNode()`
`NullNode`	`nullNode()` Factory method for getting an instance of JSON null node (which represents literal null value)
`ValueNode`	`numberNode(BigDecimal v)` Factory method for getting an instance of JSON numeric value that expresses given unlimited precision floating point value
`ValueNode`	`numberNode(BigInteger v)` Factory method for getting an instance of JSON numeric value that expresses given unlimited range integer value
`NumericNode`	`numberNode(byte v)` Factory method for getting an instance of JSON numeric value that expresses given 8-bit value
`ValueNode`	`numberNode(Byte value)` Alternate factory method that will handle wrapper value, which may be null.
`NumericNode`	`numberNode(double v)` Factory method for getting an instance of JSON numeric value that expresses given 64-bit floating point value
`ValueNode`	`numberNode(Double value)` Alternate factory method that will handle wrapper value, which may be null.
`NumericNode`	`numberNode(float v)` Factory method for getting an instance of JSON numeric value that expresses given 32-bit floating point value
`ValueNode`	`numberNode(Float value)` Alternate factory method that will handle wrapper value, which may be null.
`NumericNode`	`numberNode(int v)` Factory method for getting an instance of JSON numeric value that expresses given 32-bit integer value
`ValueNode`	`numberNode(Integer value)` Alternate factory method that will handle wrapper value, which may be null.
`NumericNode`	`numberNode(long v)` Factory method for getting an instance of JSON numeric value that expresses given 64-bit integer value
`ValueNode`	`numberNode(Long v)` Alternate factory method that will handle wrapper value, which may be null.
`NumericNode`	`numberNode(short v)` Factory method for getting an instance of JSON numeric value that expresses given 16-bit integer value
`ValueNode`	`numberNode(Short value)` Alternate factory method that will handle wrapper value, which may be null.
`ObjectNode`	`objectNode()` Factory method for constructing an empty JSON Object ("struct") node
`ValueNode`	`pojoNode(Object pojo)` Factory method for constructing a wrapper for POJO ("Plain Old Java Object") objects; these will get serialized using data binding, usually as JSON Objects, but in some cases as JSON Strings or other node types.
`ValueNode`	`rawValueNode(RawValue value)` Factory method to use for adding "raw values"; pre-encoded values that are included exactly as-is when node is serialized.
`TextNode`	`textNode(String text)` Factory method for constructing a node that represents JSON String value
`static JsonNodeFactory`	`withExactBigDecimals(boolean bigDecimalExact)` Return a factory instance with the desired behavior for BigDecimals

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Field Detail
  - instance
```
public static final JsonNodeFactory instance
```
    Default singleton instance that construct "standard" node instances: given that this class is stateless, a globally shared singleton can be used.
- Constructor Detail
  - JsonNodeFactory
```
public JsonNodeFactory(boolean bigDecimalExact)
```
    Main constructor
    The only argument to this constructor is a boolean telling whether DecimalNode instances must be built with exact representations of BigDecimal instances.
    
    This has quite an influence since, for instance, a BigDecimal (and, therefore, a DecimalNode) constructed from input string "1.0" and another constructed with input string "1.00" will not be equal, since their scale differs (1 in the first case, 2 in the second case).
    
    Note that setting the argument to true does not guarantee a strict inequality between JSON representations: input texts "0.1" and "1e-1", for instance, yield two equivalent BigDecimal instances since they have the same scale (1).
    
    The no-arg constructor (and the default instance) calls this constructor with false as an argument.
    
    Parameters:
    
    bigDecimalExact - see description
    
    See Also:
    
    BigDecimal
  - JsonNodeFactory
```
protected JsonNodeFactory()
```
    Default constructor
    This calls JsonNodeFactory(boolean) with false as an argument.
- Method Detail
  - withExactBigDecimals
```
public static JsonNodeFactory withExactBigDecimals(boolean bigDecimalExact)
```
    Return a factory instance with the desired behavior for BigDecimals
    See JsonNodeFactory(boolean) for a full description.
    
    Parameters:
    
    bigDecimalExact - see description
    
    Returns:
    
    a factory instance
  - booleanNode
```
public BooleanNode booleanNode(boolean v)
```
    Factory method for getting an instance of JSON boolean value (either literal 'true' or 'false')
    
    Specified by:
    
    booleanNode in interface JsonNodeCreator
  - nullNode
```
public NullNode nullNode()
```
    Factory method for getting an instance of JSON null node (which represents literal null value)
    
    Specified by:
    
    nullNode in interface JsonNodeCreator
  - missingNode
```
public JsonNode missingNode()
```
  - numberNode
```
public NumericNode numberNode(byte v)
```
    Factory method for getting an instance of JSON numeric value that expresses given 8-bit value
    
    Specified by:
    
    numberNode in interface JsonNodeCreator
  - numberNode
```
public ValueNode numberNode(Byte value)
```
    Alternate factory method that will handle wrapper value, which may be null. Due to possibility of null, returning type is not guaranteed to be NumericNode, but just ValueNode.
    
    Specified by:
    
    numberNode in interface JsonNodeCreator
  - numberNode
```
public NumericNode numberNode(short v)
```
    Factory method for getting an instance of JSON numeric value that expresses given 16-bit integer value
    
    Specified by:
    
    numberNode in interface JsonNodeCreator
  - numberNode
```
public ValueNode numberNode(Short value)
```
    Alternate factory method that will handle wrapper value, which may be null. Due to possibility of null, returning type is not guaranteed to be NumericNode, but just ValueNode.
    
    Specified by:
    
    numberNode in interface JsonNodeCreator
  - numberNode
```
public NumericNode numberNode(int v)
```
    Factory method for getting an instance of JSON numeric value that expresses given 32-bit integer value
    
    Specified by:
    
    numberNode in interface JsonNodeCreator
  - numberNode
```
public ValueNode numberNode(Integer value)
```
    Alternate factory method that will handle wrapper value, which may be null. Due to possibility of null, returning type is not guaranteed to be NumericNode, but just ValueNode.
    
    Specified by:
    
    numberNode in interface JsonNodeCreator
  - numberNode
```
public NumericNode numberNode(long v)
```
    Factory method for getting an instance of JSON numeric value that expresses given 64-bit integer value
    
    Specified by:
    
    numberNode in interface JsonNodeCreator
  - numberNode
```
public ValueNode numberNode(Long v)
```
    Alternate factory method that will handle wrapper value, which may be null. Due to possibility of null, returning type is not guaranteed to be NumericNode, but just ValueNode.
    
    Specified by:
    
    numberNode in interface JsonNodeCreator
  - numberNode
```
public ValueNode numberNode(BigInteger v)
```
    Factory method for getting an instance of JSON numeric value that expresses given unlimited range integer value
    
    Specified by:
    
    numberNode in interface JsonNodeCreator
  - numberNode
```
public NumericNode numberNode(float v)
```
    Factory method for getting an instance of JSON numeric value that expresses given 32-bit floating point value
    
    Specified by:
    
    numberNode in interface JsonNodeCreator
  - numberNode
```
public ValueNode numberNode(Float value)
```
    Alternate factory method that will handle wrapper value, which may be null. Due to possibility of null, returning type is not guaranteed to be NumericNode, but just ValueNode.
    
    Specified by:
    
    numberNode in interface JsonNodeCreator
  - numberNode
```
public NumericNode numberNode(double v)
```
    Factory method for getting an instance of JSON numeric value that expresses given 64-bit floating point value
    
    Specified by:
    
    numberNode in interface JsonNodeCreator
  - numberNode
```
public ValueNode numberNode(Double value)
```
    Alternate factory method that will handle wrapper value, which may be null. Due to possibility of null, returning type is not guaranteed to be NumericNode, but just ValueNode.
    
    Specified by:
    
    numberNode in interface JsonNodeCreator
  - numberNode
```
public ValueNode numberNode(BigDecimal v)
```
    Factory method for getting an instance of JSON numeric value that expresses given unlimited precision floating point value
    In the event that the factory has been built to normalize decimal values, the BigDecimal argument will be stripped off its trailing zeroes, using BigDecimal.stripTrailingZeros().
    
    Specified by:
    
    numberNode in interface JsonNodeCreator
    
    See Also:
    
    JsonNodeFactory(boolean)
  - textNode
```
public TextNode textNode(String text)
```
    Factory method for constructing a node that represents JSON String value
    
    Specified by:
    
    textNode in interface JsonNodeCreator
  - binaryNode
```
public BinaryNode binaryNode(byte[] data)
```
    Factory method for constructing a node that represents given binary data, and will get serialized as equivalent base64-encoded String value
    
    Specified by:
    
    binaryNode in interface JsonNodeCreator
  - binaryNode
```
public BinaryNode binaryNode(byte[] data,
                             int offset,
                             int length)
```
    Factory method for constructing a node that represents given binary data, and will get serialized as equivalent base64-encoded String value
    
    Specified by:
    
    binaryNode in interface JsonNodeCreator
  - arrayNode
```
public ArrayNode arrayNode()
```
    Factory method for constructing an empty JSON Array node
    
    Specified by:
    
    arrayNode in interface JsonNodeCreator
  - arrayNode
```
public ArrayNode arrayNode(int capacity)
```
    Factory method for constructing a JSON Array node with an initial capacity
    
    Specified by:
    
    arrayNode in interface JsonNodeCreator
    
    Since:
    
    2.8
  - objectNode
```
public ObjectNode objectNode()
```
    Factory method for constructing an empty JSON Object ("struct") node
    
    Specified by:
    
    objectNode in interface JsonNodeCreator
  - pojoNode
```
public ValueNode pojoNode(Object pojo)
```
    Factory method for constructing a wrapper for POJO ("Plain Old Java Object") objects; these will get serialized using data binding, usually as JSON Objects, but in some cases as JSON Strings or other node types.
    
    Specified by:
    
    pojoNode in interface JsonNodeCreator
  - rawValueNode
```
public ValueNode rawValueNode(RawValue value)
```
    Description copied from interface: JsonNodeCreator
    
    Factory method to use for adding "raw values"; pre-encoded values that are included exactly as-is when node is serialized. This may be used, for example, to include fully serialized JSON sub-trees. Note that the concept may not work with all backends, and since no translation of any kinds is done it will not work when converting between data formats.
    
    Specified by:
    
    rawValueNode in interface JsonNodeCreator
  - _inIntRange
```
protected boolean _inIntRange(long l)
```

Class JsonNodeFactory

Field Summary

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Field Detail

instance

Constructor Detail

JsonNodeFactory

JsonNodeFactory

Method Detail

withExactBigDecimals

booleanNode

nullNode

missingNode

numberNode

numberNode

numberNode

numberNode

numberNode

numberNode

numberNode

numberNode

numberNode

numberNode

numberNode

numberNode

numberNode

numberNode

textNode

binaryNode

binaryNode

arrayNode

arrayNode

objectNode

pojoNode

rawValueNode

_inIntRange