Package org.glassfish.json

Class JsonNumberImpl

java.lang.Object

org.glassfish.json.JsonNumberImpl

All Implemented Interfaces:

JsonNumber, JsonValue

Direct Known Subclasses:

JsonNumberImpl.JsonBigDecimalNumber, JsonNumberImpl.JsonIntNumber, JsonNumberImpl.JsonLongNumber

abstract class JsonNumberImpl
extends java.lang.Object
implements JsonNumber

JsonNumber impl. Subclasses provide optimized implementations when backed by int, long, BigDecimal

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
private static class	JsonNumberImpl.JsonBigDecimalNumber
private static class	JsonNumberImpl.JsonIntNumber
private static class	JsonNumberImpl.JsonLongNumber

Nested classes/interfaces inherited from interface javax.json.JsonValue

JsonValue.ValueType

Field Summary

Fields inherited from interface javax.json.JsonValue

EMPTY_JSON_ARRAY, EMPTY_JSON_OBJECT, FALSE, NULL, TRUE

Constructor Summary

Constructors

Constructor	Description
JsonNumberImpl()

Method Summary

Modifier and Type	Method	Description
java.math.BigInteger	bigIntegerValue()	Returns this JSON number as a BigInteger object.
java.math.BigInteger	bigIntegerValueExact()	Returns this JSON number as a BigInteger object.
double	doubleValue()	Returns this JSON number as a double.
boolean	equals(java.lang.Object obj)	Compares the specified object with this JsonNumber object for equality.
(package private) static JsonNumber	getJsonNumber(double value)
(package private) static JsonNumber	getJsonNumber(int num)
(package private) static JsonNumber	getJsonNumber(long num)
(package private) static JsonNumber	getJsonNumber(java.math.BigDecimal value)
(package private) static JsonNumber	getJsonNumber(java.math.BigInteger value)
JsonValue.ValueType	getValueType()	Returns the value type of this JSON value.
int	hashCode()	Returns the hash code value for this JsonNumber object.
int	intValue()	Returns this JSON number as an int.
int	intValueExact()	Returns this JSON number as an int.
boolean	isIntegral()	Returns true if this JSON number is a integral number.
long	longValue()	Returns this JSON number as a long.
long	longValueExact()	Returns this JSON number as a long.
java.lang.String	toString()	Returns a JSON text representation of the JSON number.

Methods inherited from class java.lang.Object

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

Methods inherited from interface javax.json.JsonNumber

bigDecimalValue, numberValue

Methods inherited from interface javax.json.JsonValue

asJsonArray, asJsonObject

Constructor Detail

JsonNumberImpl

JsonNumberImpl()

Method Detail

getJsonNumber

static JsonNumber getJsonNumber(int num)

getJsonNumber

static JsonNumber getJsonNumber(long num)

getJsonNumber

static JsonNumber getJsonNumber(java.math.BigInteger value)

getJsonNumber

static JsonNumber getJsonNumber(double value)

getJsonNumber

static JsonNumber getJsonNumber(java.math.BigDecimal value)

isIntegral

public boolean isIntegral()

Description copied from interface: JsonNumber

Returns true if this JSON number is a integral number. This method semantics are defined using bigDecimalValue().scale(). If the scale is zero, then it is considered integral type. This integral type information can be used to invoke an appropriate accessor method to obtain a numeric value as in the following example:

 
 JsonNumber num = ...
 if (num.isIntegral()) {
     num.longValue();     // or other methods to get integral value
 } else {
     num.doubleValue();   // or other methods to get decimal number value
 }
 
 

Specified by:

isIntegral in interface JsonNumber

Returns:

true if this number is a integral number, otherwise false

intValue

public int intValue()

Description copied from interface: JsonNumber

Returns this JSON number as an int. Note that this conversion can lose information about the overall magnitude and precision of the number value as well as return a result with the opposite sign.

Specified by:

intValue in interface JsonNumber

Returns:

an int representation of the JSON number

See Also:

BigDecimal.intValue()

intValueExact

public int intValueExact()

Description copied from interface: JsonNumber

Returns this JSON number as an int.

Specified by:

intValueExact in interface JsonNumber

Returns:

an int representation of the JSON number

See Also:

BigDecimal.intValueExact()

longValue

public long longValue()

Description copied from interface: JsonNumber

Returns this JSON number as a long. Note that this conversion can lose information about the overall magnitude and precision of the number value as well as return a result with the opposite sign.

Specified by:

longValue in interface JsonNumber

Returns:

a long representation of the JSON number.

See Also:

BigDecimal.longValue()

longValueExact

public long longValueExact()

Description copied from interface: JsonNumber

Returns this JSON number as a long.

Specified by:

longValueExact in interface JsonNumber

Returns:

a long representation of the JSON number

See Also:

BigDecimal.longValueExact()

doubleValue

public double doubleValue()

Description copied from interface: JsonNumber

Returns this JSON number as a double. This is a a convenience method for bigDecimalValue().doubleValue(). Note that this conversion can lose information about the overall magnitude and precision of the number value as well as return a result with the opposite sign.

Specified by:

doubleValue in interface JsonNumber

Returns:

a double representation of the JSON number

See Also:

BigDecimal.doubleValue()

bigIntegerValue

public java.math.BigInteger bigIntegerValue()

Description copied from interface: JsonNumber

Returns this JSON number as a BigInteger object. This is a a convenience method for bigDecimalValue().toBigInteger(). Note that this conversion can lose information about the overall magnitude and precision of the number value as well as return a result with the opposite sign.

Specified by:

bigIntegerValue in interface JsonNumber

Returns:

a BigInteger representation of the JSON number.

See Also:

BigDecimal.toBigInteger()

bigIntegerValueExact

public java.math.BigInteger bigIntegerValueExact()

Description copied from interface: JsonNumber

Returns this JSON number as a BigInteger object. This is a convenience method for bigDecimalValue().toBigIntegerExact().

Specified by:

bigIntegerValueExact in interface JsonNumber

Returns:

a BigInteger representation of the JSON number

See Also:

BigDecimal.toBigIntegerExact()

getValueType

public JsonValue.ValueType getValueType()

Description copied from interface: JsonValue

Returns the value type of this JSON value.

Specified by:

getValueType in interface JsonValue

Returns:

JSON value type

hashCode

public int hashCode()

Description copied from interface: JsonNumber

Returns the hash code value for this JsonNumber object. The hash code of a JsonNumber object is defined as the hash code of its JsonNumber.bigDecimalValue() object.

Specified by:

hashCode in interface JsonNumber

Overrides:

hashCode in class java.lang.Object

Returns:

the hash code value for this JsonNumber object

equals

public boolean equals(java.lang.Object obj)

Description copied from interface: JsonNumber

Compares the specified object with this JsonNumber object for equality. Returns true if and only if the type of the specified object is also JsonNumber and their JsonNumber.bigDecimalValue() objects are equal

Specified by:

equals in interface JsonNumber

Overrides:

equals in class java.lang.Object

Parameters:

obj - the object to be compared for equality with this JsonNumber

Returns:

true if the specified object is equal to this JsonNumber

toString

public java.lang.String toString()

Description copied from interface: JsonNumber

Returns a JSON text representation of the JSON number. The representation is equivalent to BigDecimal.toString().

Specified by:

toString in interface JsonNumber

Specified by:

toString in interface JsonValue

Overrides:

toString in class java.lang.Object

Returns:

JSON text representation of the number