public final class NullNode extends ValueNode
| Modifier and Type | Method and Description |
|---|---|
String |
asText()
Method that will return a 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.
|
static NullNode |
getInstance() |
JsonNodeType |
getNodeType()
Return the type of this node
|
void |
serialize(JsonGenerator jg,
SerializerProvider provider)
Method called to serialize node instances using given generator.
|
deepCopy, findParent, findParents, findValue, findValues, findValuesAsText, get, get, has, has, hasNonNull, hasNonNull, path, path, serializeWithType, toStringfindPath, numberType, traverse, traverseasBoolean, asBoolean, asDouble, asDouble, asInt, asInt, asLong, asLong, bigIntegerValue, binaryValue, booleanValue, canConvertToInt, canConvertToLong, decimalValue, doubleValue, elements, fieldNames, fields, findParents, findValues, findValuesAsText, floatValue, intValue, isArray, isBigDecimal, isBigInteger, isBinary, isBoolean, isContainerNode, isDouble, isFloat, isFloatingPointNumber, isInt, isIntegralNumber, isLong, isMissingNode, isNull, isNumber, isObject, isPojo, isShort, isTextual, isValueNode, iterator, longValue, numberValue, shortValue, size, textValue, with, withArraypublic static final NullNode instance
public static NullNode getInstance()
public JsonNodeType getNodeType()
JsonNodegetNodeType in class JsonNodeJsonNodeType enum valuepublic JsonToken asToken()
BaseJsonNodeJsonToken that equivalent
stream event would produce (for most nodes there is just
one token but for structured/container types multiple)public String asText()
JsonNodeJsonNode.isValueNode() returns true),
otherwise empty String.public final void serialize(JsonGenerator jg, SerializerProvider provider) throws IOException, JsonProcessingException
BaseJsonNodeserialize in interface JsonSerializableserialize in class BaseJsonNodeIOExceptionJsonProcessingExceptionpublic boolean equals(Object o)
JsonNode
Note: marked as abstract to ensure all implementation
classes define it properly and not rely on definition
from Object.
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