com.fasterxml.jackson.databind.node

Class NumericNode

java.lang.Object

com.fasterxml.jackson.databind.JsonNode

com.fasterxml.jackson.databind.node.BaseJsonNode

com.fasterxml.jackson.databind.node.ValueNode

com.fasterxml.jackson.databind.node.NumericNode

All Implemented Interfaces:

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

Constructors

Modifier	Constructor and Description
protected	NumericNode()

Method Summary

Methods

Modifier and Type	Method and Description
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 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, hasNonNull, hasNonNull, 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 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 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 final 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 final 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 final 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 final 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 final 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 final 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