com.fasterxml.jackson.databind.node
Class NumericNode

java.lang.Object
  extended by com.fasterxml.jackson.databind.JsonNode
      extended by com.fasterxml.jackson.databind.node.BaseJsonNode
          extended by com.fasterxml.jackson.databind.node.ValueNode
              extended by com.fasterxml.jackson.databind.node.NumericNode
All Implemented Interfaces:
com.fasterxml.jackson.core.TreeNode, JsonSerializable, Iterable<JsonNode>
Direct Known Subclasses:
BigIntegerNode, DecimalNode, DoubleNode, IntNode, LongNode

public abstract class NumericNode
extends ValueNode

Intermediate value node used for numeric nodes.


Field Summary
 
Fields inherited from class com.fasterxml.jackson.databind.JsonNode
NO_NODES, NO_STRINGS
 
Constructor Summary
protected NumericNode()
           
 
Method Summary
 double asDouble()
          Method that will try to convert value of this node to a Java double.
 double asDouble(double defaultValue)
          Method that will try to convert value of this node to a Java double.
 int asInt()
          Method that will try to convert value of this node to a Java int.
 int asInt(int defaultValue)
          Method that will try to convert value of this node to a Java int.
 long asLong()
          Method that will try to convert value of this node to a Java long.
 long asLong(long defaultValue)
          Method that will try to convert value of this node to a Java long.
abstract  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.
abstract  BigInteger bigIntegerValue()
           
abstract  boolean canConvertToInt()
          Method that can be used to check whether this node is a numeric node (JsonNode.isNumber() would return true) AND its value fits within Java's 32-bit signed integer type, int.
abstract  boolean canConvertToLong()
          Method that can be used to check whether this node is a numeric node (JsonNode.isNumber() would return true) AND its value fits within Java's 64-bit signed integer type, long.
abstract  BigDecimal decimalValue()
           
abstract  double doubleValue()
           
abstract  int intValue()
          Returns integer value for this node, if and only if this node is numeric (JsonNode.isNumber() returns true).
 boolean isNumber()
           
abstract  long longValue()
           
abstract  com.fasterxml.jackson.core.JsonParser.NumberType numberType()
          Returns code that identifies type of underlying numeric value, if (and only if) node is a number node.
abstract  Number numberValue()
          Returns numeric value for this node, if and only if this node is numeric (JsonNode.isNumber() returns true); otherwise returns null
 
Methods inherited from class com.fasterxml.jackson.databind.node.ValueNode
asToken, deepCopy, isValueNode, path, path, serializeWithType, toString
 
Methods inherited from class com.fasterxml.jackson.databind.node.BaseJsonNode
findParent, findParents, findPath, findValue, findValues, findValuesAsText, serialize, traverse
 
Methods inherited from class com.fasterxml.jackson.databind.JsonNode
asBoolean, asBoolean, binaryValue, booleanValue, elements, equals, fieldNames, fields, findParents, findValues, findValuesAsText, get, get, has, has, isArray, isBigDecimal, isBigInteger, isBinary, isBoolean, isContainerNode, isDouble, isFloatingPointNumber, isInt, isIntegralNumber, isLong, isMissingNode, isNull, isObject, isPojo, isTextual, iterator, size, textValue, with, withArray
 
Methods inherited from class java.lang.Object
clone, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait
 

Constructor Detail

NumericNode

protected NumericNode()
Method Detail

isNumber

public final boolean isNumber()
Overrides:
isNumber in class JsonNode
Returns:
True if this node represents a numeric JSON value

numberType

public abstract com.fasterxml.jackson.core.JsonParser.NumberType numberType()
Description copied from class: BaseJsonNode
Returns code that identifies type of underlying numeric value, if (and only if) node is a number node.

Specified by:
numberType in interface com.fasterxml.jackson.core.TreeNode
Overrides:
numberType in class BaseJsonNode
Returns:
Type of number contained, if any; or null if node does not contain numeric value.

numberValue

public abstract Number numberValue()
Description copied from class: JsonNode
Returns numeric value for this node, if and only if this node is numeric (JsonNode.isNumber() returns true); otherwise returns null

Overrides:
numberValue in class JsonNode
Returns:
Number value this node contains, if any (null for non-number nodes).

intValue

public abstract int intValue()
Description copied from class: JsonNode
Returns integer value for this node, if and only if this node is numeric (JsonNode.isNumber() returns true). For other types returns 0. For floating-point numbers, value is truncated using default Java coercion, similar to how cast from double to int operates.

Overrides:
intValue in class JsonNode
Returns:
Integer value this node contains, if any; 0 for non-number nodes.

longValue

public abstract long longValue()
Overrides:
longValue in class JsonNode

doubleValue

public abstract double doubleValue()
Overrides:
doubleValue in class JsonNode

decimalValue

public abstract BigDecimal decimalValue()
Overrides:
decimalValue in class JsonNode

bigIntegerValue

public abstract BigInteger bigIntegerValue()
Overrides:
bigIntegerValue in class JsonNode

canConvertToInt

public abstract boolean canConvertToInt()
Description copied from class: JsonNode
Method that can be used to check whether this node is a numeric node (JsonNode.isNumber() would return true) AND its value fits within Java's 32-bit signed integer type, int. Note that floating-point numbers are convertible if the integral part fits without overflow (as per standard Java coercion rules)

Overrides:
canConvertToInt in class JsonNode

canConvertToLong

public abstract boolean canConvertToLong()
Description copied from class: JsonNode
Method that can be used to check whether this node is a numeric node (JsonNode.isNumber() would return true) AND its value fits within Java's 64-bit signed integer type, long. Note that floating-point numbers are convertible if the integral part fits without overflow (as per standard Java coercion rules)

Overrides:
canConvertToLong in class JsonNode

asText

public abstract String asText()
Description copied from class: JsonNode
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.

Specified by:
asText in class JsonNode

asInt

public int asInt()
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), default value of 0 will be returned; no exceptions are thrown.

Overrides:
asInt 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()
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), default value of 0 will be returned; no exceptions are thrown.

Overrides:
asLong 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()
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), default value of 0.0 will be returned; no exceptions are thrown.

Overrides:
asDouble 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


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