org.wildfly.discovery

Class AttributeValue

java.lang.Object

org.wildfly.discovery.AttributeValue

All Implemented Interfaces:

Serializable, Comparable<AttributeValue>

public abstract class AttributeValue
extends Object
implements Comparable<AttributeValue>, Serializable

An attribute value describing some aspect of a service.

Author:

David M. Lloyd

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field and Description
static org.wildfly.discovery.BooleanAttributeValue	FALSE The "false" boolean attribute value.
static org.wildfly.discovery.BooleanAttributeValue	TRUE The "true" boolean attribute value.

Method Summary

Modifier and Type	Method and Description
int	asInt() Get the value as an integer, throwing an exception if it is not numeric.
int	compareTo(AttributeValue other) Compare this value to another.
abstract boolean	equals(AttributeValue obj) Determine if this attribute value is equal to another.
abstract boolean	equals(Object obj) Determine if this attribute value is equal to another.
static AttributeValue	fromBytes(byte[] bytes) Create an attribute value from a byte sequence.
static AttributeValue	fromInt(int value) Create an attribute value from an integer.
static AttributeValue	fromString(String string) Create an attribute value from a string.
boolean	isBoolean() Determine if this value is a boolean value.
boolean	isNumeric() Determine if this value is numeric.
boolean	isOpaque() Determine if this value is opaque (binary).
boolean	isString() Determine if this value is a text string.
String	toString() Get a string representation of this attribute value.

Methods inherited from class java.lang.Object

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

Field Detail

TRUE

public static final org.wildfly.discovery.BooleanAttributeValue TRUE

The "true" boolean attribute value.

FALSE

public static final org.wildfly.discovery.BooleanAttributeValue FALSE

The "false" boolean attribute value.

Method Detail

fromString

public static AttributeValue fromString(String string)

Create an attribute value from a string. The resultant value will return true from isString().

Parameters:

string - the attribute value string (must not be null)

Returns:

the attribute value object

fromBytes

public static AttributeValue fromBytes(byte[] bytes)

Create an attribute value from a byte sequence. The resultant value will return true from isOpaque().

Parameters:

bytes - the bytes to read (must not be null)

Returns:

the attribute value object

fromInt

public static AttributeValue fromInt(int value)

Create an attribute value from an integer. The resultant value will return true from isNumeric().

Parameters:

value - the value to use

Returns:

the attribute value object

isBoolean

public boolean isBoolean()

Determine if this value is a boolean value.

Returns:

true if the value is a boolean, false otherwise

isNumeric

public boolean isNumeric()

Determine if this value is numeric.

Returns:

true if the value is numeric, false otherwise

isOpaque

public boolean isOpaque()

Determine if this value is opaque (binary).

Returns:

true if the value is opaque, false otherwise

isString

public boolean isString()

Determine if this value is a text string.

Returns:

true if the value is a string, false otherwise

asInt

public int asInt()
          throws IllegalArgumentException

Get the value as an integer, throwing an exception if it is not numeric.

Returns:

the integer value

Throws:

IllegalArgumentException - if the value is not numeric

compareTo

public int compareTo(AttributeValue other)

Compare this value to another.

Specified by:

compareTo in interface Comparable<AttributeValue>

Parameters:

other - the other value

Returns:

-1, 0, or 1 if the value comes before, is the same as, or comes after the given value

equals

public abstract boolean equals(Object obj)

Determine if this attribute value is equal to another.

Overrides:

equals in class Object

Parameters:

obj - the other object

Returns:

true if the objects are equal, false otherwise

equals

public abstract boolean equals(AttributeValue obj)

Determine if this attribute value is equal to another.

Parameters:

obj - the other object

Returns:

true if the objects are equal, false otherwise

toString

public String toString()

Get a string representation of this attribute value.

Overrides:

toString in class Object

Returns:

the string (not null)