Package com.yahoo.metrics.simple

Class Value

java.lang.Object

com.yahoo.metrics.simple.Value

public abstract class Value
extends Object

Wrapper for dimension values.

Author:

steinar

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	Value.Discriminator	Marker for the type of the contained value of a Value instance.

Constructor Summary

Constructors

Constructor	Description
Value()

Method Summary

Modifier and Type	Method	Description
double	doubleValue()	Get the double wrapped by a Value if one exists.
abstract Value.Discriminator	getType()	Show the (single) supported standard type representation of a Value instance.
long	longValue()	Get the long wrapped by a Value if one exists.
static Value	of(double value)	Helper method to wrap a double as a Value.
static Value	of(long value)	Helper method to wrap a long as a Value.
static Value	of(String value)	Helper method to wrap a string as a Value.
String	stringValue()	Get the string wrapped by a Value if one exists.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

Value

public Value()

Method Detail

longValue

public long longValue()
               throws UnsupportedOperationException

Get the long wrapped by a Value if one exists.

Throws:

UnsupportedOperationException - if LONG is not returned by {getType().

doubleValue

public double doubleValue()
                   throws UnsupportedOperationException

Get the double wrapped by a Value if one exists.

Throws:

UnsupportedOperationException - if DOUBLE is not returned by {getType().

stringValue

public String stringValue()
                   throws UnsupportedOperationException

Get the string wrapped by a Value if one exists.

Throws:

UnsupportedOperationException - if STRING is not returned by {getType().

getType

public abstract Value.Discriminator getType()

Show the (single) supported standard type representation of a Value instance.

of

public static Value of(long value)

Helper method to wrap a long as a Value. The instance returned may or may not be unique.

Parameters:

value - the value to wrap

Returns:

an immutable wrapper

of

public static Value of(double value)

Helper method to wrap a double as a Value. The instance returned may or may not be unique.

Parameters:

value - the value to wrap

Returns:

an immutable wrapper

of

public static Value of(String value)

Helper method to wrap a string as a Value. The instance returned may or may not be unique.

Parameters:

value - the value to wrap

Returns:

an immutable wrapper