org.apache.hivemind

Class HiveMind

java.lang.Object

org.apache.hivemind.HiveMind

public final class HiveMind
extends java.lang.Object

Static utility class for HiveMind.

Author:

Howard Lewis Ship

Field Summary

Fields

Modifier and Type	Field and Description
static java.lang.String	INTERFACE_SYNTHESIZER_SERVICE The full id of the InterfaceSynthesizer service.
static java.lang.Object	INTROSPECTOR_MUTEX An object used to synchronize access to Introspector (which is not fully threadsafe).
static java.lang.String	THREAD_EVENT_NOTIFIER_SERVICE The full id of the ThreadEventNotifier service.
static java.lang.String	THREAD_LOCALE_SERVICE The full id of the ThreadLocale service.

Method Summary

Methods

Modifier and Type	Method and Description
static ApplicationRuntimeException	createRegistryShutdownException()
static Location	findLocation(java.lang.Object[] locations) Selects the first Location in an array of objects.
static Location	getLocation(java.lang.Object object) Extracts a location from an object, checking to see if it implement Location or Locatable.
static java.lang.String	getLocationString(java.lang.Object object) Invokes getLocation(Object), then translate the result to a string value, or "unknown location" if null.
static boolean	isBlank(java.lang.String string) Returns true if the string is null, empty, or contains only whitespace.
static boolean	isEmpty(java.util.Collection c) Returns true if the Collection is null or empty.
static boolean	isNonBlank(java.lang.String string) As with isBlank(String), but inverts the response.
static void	setLocation(java.lang.Object holder, Location location) Updates the location of an object, if the object implements LocationHolder.

Methods inherited from class java.lang.Object

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

Field Detail

THREAD_EVENT_NOTIFIER_SERVICE

public static final java.lang.String THREAD_EVENT_NOTIFIER_SERVICE

The full id of the ThreadEventNotifier service.

See Also:

Constant Field Values

THREAD_LOCALE_SERVICE

public static final java.lang.String THREAD_LOCALE_SERVICE

The full id of the ThreadLocale service.

Since:

1.1

See Also:

Constant Field Values

INTERFACE_SYNTHESIZER_SERVICE

public static final java.lang.String INTERFACE_SYNTHESIZER_SERVICE

The full id of the InterfaceSynthesizer service.

Since:

1.1

See Also:

Constant Field Values

INTROSPECTOR_MUTEX

public static final java.lang.Object INTROSPECTOR_MUTEX

An object used to synchronize access to Introspector (which is not fully threadsafe).

Since:

1.1

Method Detail

createRegistryShutdownException

public static ApplicationRuntimeException createRegistryShutdownException()

findLocation

public static Location findLocation(java.lang.Object[] locations)

Selects the first Location in an array of objects. Skips over nulls. The objects may be instances of Location or Locatable. May return null if no Location can be found.

getLocation

public static Location getLocation(java.lang.Object object)

Extracts a location from an object, checking to see if it implement Location or Locatable.

Returns:

the Location, or null if it can't be found

getLocationString

public static java.lang.String getLocationString(java.lang.Object object)

Invokes getLocation(Object), then translate the result to a string value, or "unknown location" if null.

isBlank

public static boolean isBlank(java.lang.String string)

Returns true if the string is null, empty, or contains only whitespace.

The commons-lang library provides a version of this, but the naming and behavior changed between 1.0 and 2.0, which causes some dependency issues.

isNonBlank

public static boolean isNonBlank(java.lang.String string)

As with isBlank(String), but inverts the response.

setLocation

public static void setLocation(java.lang.Object holder,
               Location location)

Updates the location of an object, if the object implements LocationHolder.

Parameters:

holder - the object to be updated

location - the location to assign to the holder object

isEmpty

public static boolean isEmpty(java.util.Collection c)

Returns true if the Collection is null or empty.