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| java.lang.Object
 java.util.logging.Level
| Level | | public class Level implements java.io.Serializable(Code) | | The Level class defines a set of standard logging levels that
can be used to control logging output. The logging Level objects
are ordered and are specified by ordered integers. Enabling logging
at a given level also enables logging at all higher levels.
Clients should normally use the predefined Level constants such
as Level.SEVERE.
The levels in descending order are:
- SEVERE (highest value)
- WARNING
- INFO
- CONFIG
- FINE
- FINER
- FINEST (lowest value)
In addition there is a level OFF that can be used to turn
off logging, and a level ALL that can be used to enable
logging of all messages.
It is possible for third parties to define additional logging
levels by subclassing Level. In such cases subclasses should
take care to chose unique integer level values and to ensure that
they maintain the Object uniqueness property across serialization
by defining a suitable readResolve method.
version:
1.27, 05/09/07
since:
1.4 |
| Field Summary | |
| final public static Level | ALL
ALL indicates that all messages should be logged. | | final public static Level | CONFIG
CONFIG is a message level for static configuration messages.
CONFIG messages are intended to provide a variety of static
configuration information, to assist in debugging problems
that may be associated with particular configurations.
For example, CONFIG message might include the CPU type,
the graphics depth, the GUI look-and-feel, etc.
This level is initialized to 700. | | final public static Level | FINE
FINE is a message level providing tracing information.
All of FINE, FINER, and FINEST are intended for relatively
detailed tracing. | | final public static Level | FINER
FINER indicates a fairly detailed tracing message. | | final public static Level | FINEST
FINEST indicates a highly detailed tracing message.
This level is initialized to 300. | | final public static Level | INFO
INFO is a message level for informational messages.
Typically INFO messages will be written to the console
or its equivalent. | | final public static Level | OFF
OFF is a special level that can be used to turn off logging. | | final public static Level | SEVERE
SEVERE is a message level indicating a serious failure.
In general SEVERE messages should describe events that are
of considerable importance and which will prevent normal
program execution. | | final public static Level | WARNING
WARNING is a message level indicating a potential problem. |
| Constructor Summary | |
| protected | Level(String name, int value)
Create a named Level with a given integer value.
Note that this constructor is "protected" to allow subclassing.
In general clients of logging should use one of the constant Level
objects such as SEVERE or FINEST. | | protected | Level(String name, int value, String resourceBundleName)
Create a named Level with a given integer value and a
given localization resource name.
Parameters:
name - the name of the Level, for example "SEVERE".
Parameters:
value - an integer value for the level.
Parameters:
resourceBundleName - name of a resource bundle to use inlocalizing the given name. |
| Method Summary | |
| public boolean | equals(Object ox)
Compare two objects for value equality. | | public String | getLocalizedName()
Return the localized string name of the Level, for
the current default locale. | | public String | getName()
Return the non-localized string name of the Level. | | public String | getResourceBundleName()
Return the level's localization resource bundle name, or
null if no localization bundle is defined. | | public int | hashCode()
Generate a hashcode. | | final public int | intValue()
Get the integer value for this level. | | public static synchronized Level | parse(String name)
Parse a level name string into a Level.
The argument string may consist of either a level name
or an integer value.
For example:
Parameters:
name - string to be parsed
throws:
NullPointerException - if the name is null
throws:
IllegalArgumentException - if the value is not valid. | | final public String | toString()
|
| ALL | | final public static Level ALL(Code) | | ALL indicates that all messages should be logged.
This level is initialized to Integer.MIN_VALUE.
|
| CONFIG | | final public static Level CONFIG(Code) | | CONFIG is a message level for static configuration messages.
CONFIG messages are intended to provide a variety of static
configuration information, to assist in debugging problems
that may be associated with particular configurations.
For example, CONFIG message might include the CPU type,
the graphics depth, the GUI look-and-feel, etc.
This level is initialized to 700.
|
| FINE | | final public static Level FINE(Code) | | FINE is a message level providing tracing information.
All of FINE, FINER, and FINEST are intended for relatively
detailed tracing. The exact meaning of the three levels will
vary between subsystems, but in general, FINEST should be used
for the most voluminous detailed output, FINER for somewhat
less detailed output, and FINE for the lowest volume (and
most important) messages.
In general the FINE level should be used for information
that will be broadly interesting to developers who do not have
a specialized interest in the specific subsystem.
FINE messages might include things like minor (recoverable)
failures. Issues indicating potential performance problems
are also worth logging as FINE.
This level is initialized to 500.
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| FINER | | final public static Level FINER(Code) | | FINER indicates a fairly detailed tracing message.
By default logging calls for entering, returning, or throwing
an exception are traced at this level.
This level is initialized to 400.
|
| FINEST | | final public static Level FINEST(Code) | | FINEST indicates a highly detailed tracing message.
This level is initialized to 300.
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| INFO | | final public static Level INFO(Code) | | INFO is a message level for informational messages.
Typically INFO messages will be written to the console
or its equivalent. So the INFO level should only be
used for reasonably significant messages that will
make sense to end users and system admins.
This level is initialized to 800.
|
| OFF | | final public static Level OFF(Code) | | OFF is a special level that can be used to turn off logging.
This level is initialized to Integer.MAX_VALUE.
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| SEVERE | | final public static Level SEVERE(Code) | | SEVERE is a message level indicating a serious failure.
In general SEVERE messages should describe events that are
of considerable importance and which will prevent normal
program execution. They should be reasonably intelligible
to end users and to system administrators.
This level is initialized to 1000.
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| WARNING | | final public static Level WARNING(Code) | | WARNING is a message level indicating a potential problem.
In general WARNING messages should describe events that will
be of interest to end users or system managers, or which
indicate potential problems.
This level is initialized to 900.
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| Level | | protected Level(String name, int value)(Code) | | Create a named Level with a given integer value.
Note that this constructor is "protected" to allow subclassing.
In general clients of logging should use one of the constant Level
objects such as SEVERE or FINEST. However, if clients need to
add new logging levels, they may subclass Level and define new
constants.
Parameters:
name - the name of the Level, for example "SEVERE".
Parameters:
value - an integer value for the level.
throws:
NullPointerException - if the name is null |
| Level | | protected Level(String name, int value, String resourceBundleName)(Code) | | Create a named Level with a given integer value and a
given localization resource name.
Parameters:
name - the name of the Level, for example "SEVERE".
Parameters:
value - an integer value for the level.
Parameters:
resourceBundleName - name of a resource bundle to use inlocalizing the given name. If the resourceBundleName is null or an empty string, it is ignored.
throws:
NullPointerException - if the name is null |
| equals | | public boolean equals(Object ox)(Code) | | Compare two objects for value equality.
true if and only if the two objects have the same level value. |
| getLocalizedName | | public String getLocalizedName()(Code) | | Return the localized string name of the Level, for
the current default locale.
If no localization information is available, the
non-localized name is returned.
localized name |
| getName | | public String getName()(Code) | | Return the non-localized string name of the Level.
non-localized name |
| getResourceBundleName | | public String getResourceBundleName()(Code) | | Return the level's localization resource bundle name, or
null if no localization bundle is defined.
localization resource bundle name |
| hashCode | | public int hashCode()(Code) | | Generate a hashcode.
a hashcode based on the level value |
| intValue | | final public int intValue()(Code) | | Get the integer value for this level. This integer value
can be used for efficient ordering comparisons between
Level objects.
the integer value for this level. |
| parse | | public static synchronized Level parse(String name) throws IllegalArgumentException(Code) | | Parse a level name string into a Level.
The argument string may consist of either a level name
or an integer value.
For example:
Parameters:
name - string to be parsed
throws:
NullPointerException - if the name is null
throws:
IllegalArgumentException - if the value is not valid. Valid values are integers between Integer.MIN_VALUE and Integer.MAX_VALUE, and all known level names. Known names are the levels defined by this class (i.e. FINE,FINER, FINEST), or created by this class withappropriate package access, or new levels defined or createdby subclasses. The parsed value. Passing an integer that corresponds to a known name(eg 700) will return the associated name (eg CONFIG).Passing an integer that does not (eg 1) will return a new level nameinitialized to that value. |
| toString | | final public String toString()(Code) | | the non-localized name of the Level, for example "INFO". |
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