javax.slee.facilities

Class TraceLevel

java.lang.Object

javax.slee.facilities.TraceLevel

All Implemented Interfaces:

Serializable

public final class TraceLevel
extends Object
implements Serializable

This class defines an enumerated type for the trace levels supported by the Trace Facility. The class is based on the Java Logging API included with J2SE 1.4.

A singleton instance of each enumerated value is guaranteed (via an implementation of readResolve() - refer java.io.Serializable), so that equality tests using == are always evaluated correctly. (This equality test is only guaranteed if this class is loaded in the application's boot class path, rather than dynamically loaded at runtime.)

The trace levels in descending order are:

• SEVERE (highest value)
• WARNING
• INFO
• CONFIG
• FINE
• FINER
• FINEST (lowest value)

The trace level OFF is also defined for the purposes of disabling trace message generation at the management level.

Since:

SLEE 1.1

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field and Description
static TraceLevel	CONFIG Trace level for messages relating to configuration.
static String	CONFIG_STRING A string representation of CONFIG.
static TraceLevel	FINE Trace level for general coarse-grained debugging messages.
static String	FINE_STRING A string representation of FINE.
static TraceLevel	FINER Trace level for debug messages containing moderate detail.
static String	FINER_STRING A string representation of FINER.
static TraceLevel	FINEST Trace level for highly detailed or fine-grained messages.
static String	FINEST_STRING A string representation of FINEST.
static TraceLevel	INFO Trace level for general information messages.
static String	INFO_STRING A string representation of INFO.
static int	LEVEL_CONFIG An integer representation of CONFIG.
static int	LEVEL_FINE An integer representation of FINE.
static int	LEVEL_FINER An integer representation of FINER.
static int	LEVEL_FINEST An integer representation of FINEST.
static int	LEVEL_INFO An integer representation of INFO.
static int	LEVEL_OFF An integer representation of OFF.
static int	LEVEL_SEVERE An integer representation of SEVERE.
static int	LEVEL_WARNING An integer representation of WARNING.
static TraceLevel	OFF Trace level for maximum filtering.
static String	OFF_STRING A string representation of OFF.
static TraceLevel	SEVERE Trace level for messages that indicate a severe error has occurred.
static String	SEVERE_STRING A string representation of SEVERE.
static TraceLevel	WARNING Trace level for messages that indicate warnings.
static String	WARNING_STRING A string representation of WARNING.

Method Summary

Methods

Modifier and Type	Method and Description
boolean	equals(Object obj) Compare this trace level for equality with another.
static TraceLevel	fromInt(int level) Get a TraceLevel object from an integer value.
static TraceLevel	fromString(String level) Get a TraceLevel object from a string value.
int	hashCode() Get a hash code value for this trace level.
boolean	isConfig() Determine if this TraceLevel object represents the CONFIG level.
boolean	isFine() Determine if this TraceLevel object represents the FINE level.
boolean	isFiner() Determine if this TraceLevel object represents the FINER level.
boolean	isFinest() Determine if this TraceLevel object represents the FINEST level.
boolean	isHigherLevel(TraceLevel other) Determine if this TraceLevel object represents a level that is higher than some other TraceLevel object.
boolean	isInfo() Determine if this TraceLevel object represents the INFO level.
boolean	isOff() Determine if this TraceLevel object represents the OFF level.
boolean	isSevere() Determine if this TraceLevel object represents the SEVERE level.
boolean	isWarning() Determine if this TraceLevel object represents the WARNING level.
int	toInt() Get an integer value representation for this TraceLevel object.
String	toString() Get the textual representation of the TraceLevel object.

Methods inherited from class java.lang.Object

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

Field Detail

LEVEL_OFF

public static final int LEVEL_OFF

An integer representation of OFF.

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Constant Field Values

LEVEL_SEVERE

public static final int LEVEL_SEVERE

An integer representation of SEVERE.

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Constant Field Values

LEVEL_WARNING

public static final int LEVEL_WARNING

An integer representation of WARNING.

See Also:

Constant Field Values

LEVEL_INFO

public static final int LEVEL_INFO

An integer representation of INFO.

See Also:

Constant Field Values

LEVEL_CONFIG

public static final int LEVEL_CONFIG

An integer representation of CONFIG.

See Also:

Constant Field Values

LEVEL_FINE

public static final int LEVEL_FINE

An integer representation of FINE.

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Constant Field Values

LEVEL_FINER

public static final int LEVEL_FINER

An integer representation of FINER.

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Constant Field Values

LEVEL_FINEST

public static final int LEVEL_FINEST

An integer representation of FINEST.

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Constant Field Values

OFF_STRING

public static final String OFF_STRING

A string representation of OFF.

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Constant Field Values

SEVERE_STRING

public static final String SEVERE_STRING

A string representation of SEVERE.

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Constant Field Values

WARNING_STRING

public static final String WARNING_STRING

A string representation of WARNING.

See Also:

Constant Field Values

INFO_STRING

public static final String INFO_STRING

A string representation of INFO.

See Also:

Constant Field Values

CONFIG_STRING

public static final String CONFIG_STRING

A string representation of CONFIG.

See Also:

Constant Field Values

FINE_STRING

public static final String FINE_STRING

A string representation of FINE.

See Also:

Constant Field Values

FINER_STRING

public static final String FINER_STRING

A string representation of FINER.

See Also:

Constant Field Values

FINEST_STRING

public static final String FINEST_STRING

A string representation of FINEST.

See Also:

Constant Field Values

OFF

public static final TraceLevel OFF

Trace level for maximum filtering. Notifications are not be generated using this level.

SEVERE

public static final TraceLevel SEVERE

Trace level for messages that indicate a severe error has occurred.

WARNING

public static final TraceLevel WARNING

Trace level for messages that indicate warnings.

INFO

public static final TraceLevel INFO

Trace level for general information messages.

CONFIG

public static final TraceLevel CONFIG

Trace level for messages relating to configuration.

FINE

public static final TraceLevel FINE

Trace level for general coarse-grained debugging messages.

FINER

public static final TraceLevel FINER

Trace level for debug messages containing moderate detail.

FINEST

public static final TraceLevel FINEST

Trace level for highly detailed or fine-grained messages. This is the lowest trace level.

Method Detail

fromInt

public static TraceLevel fromInt(int level)
                          throws IllegalArgumentException

Get a TraceLevel object from an integer value.

Parameters:

level - the level as an integer.

Returns:

a TraceLevel object corresponding to level.

Throws:

IllegalArgumentException - if level is not a valid trace level value.

fromString

public static TraceLevel fromString(String level)
                             throws NullPointerException,
                                    IllegalArgumentException

Get a TraceLevel object from a string value.

Parameters:

level - the level as a string, for example as returned by the toString() method (case insensitive).

Returns:

a TraceLevel object corresponding to level.

Throws:

NullPointerException - if level is null.

IllegalArgumentException - if level is not a valid trace level string.

toInt

public int toInt()

Get an integer value representation for this TraceLevel object.

Returns:

an integer value representation for this TraceLevel object.

isOff

public boolean isOff()

Determine if this TraceLevel object represents the OFF level.

This method is effectively equivalent to the conditional test: (this == OFF), ie. the code:

if (traceLevel.isOff()) ...

is interchangeable with the code:

if (traceLevel == TraceLevel.OFF) ...

Returns:

true if this object represents the OFF level, false otherwise.

isSevere

public boolean isSevere()

Determine if this TraceLevel object represents the SEVERE level.

This method is effectively equivalent to the conditional test: (this == SEVERE), ie. the code:

if (traceLevel.isSevere()) ...

is interchangeable with the code:

if (traceLevel == TraceLevel.SEVERE) ...

Returns:

true if this object represents the SEVERE level, false otherwise.

isWarning

public boolean isWarning()

Determine if this TraceLevel object represents the WARNING level.

This method is effectively equivalent to the conditional test: (this == WARNING), ie. the code:

if (traceLevel.isWarning()) ...

is interchangeable with the code:

if (traceLevel == TraceLevel.WARNING) ...

Returns:

true if this object represents the WARNING level, false otherwise.

isInfo

public boolean isInfo()

Determine if this TraceLevel object represents the INFO level.

This method is effectively equivalent to the conditional test: (this == INFO), ie. the code:

if (traceLevel.isMinor()) ...

is interchangeable with the code:

if (traceLevel == TraceLevel.INFO) ...

Returns:

true if this object represents the INFO level, false otherwise.

isConfig

public boolean isConfig()

Determine if this TraceLevel object represents the CONFIG level.

This method is effectively equivalent to the conditional test: (this == CONFIG), ie. the code:

if (traceLevel.isConfig()) ...

is interchangeable with the code:

if (traceLevel == TraceLevel.CONFIG) ...

Returns:

true if this object represents the CONFIG level, false otherwise.

isFine

public boolean isFine()

Determine if this TraceLevel object represents the FINE level.

This method is effectively equivalent to the conditional test: (this == FINE), ie. the code:

if (traceLevel.isFine()) ...

is interchangeable with the code:

if (traceLevel == TraceLevel.FINE) ...

Returns:

true if this object represents the FINE level, false otherwise.

isFiner

public boolean isFiner()

Determine if this TraceLevel object represents the FINER level.

This method is effectively equivalent to the conditional test: (this == FINER), ie. the code:

if (traceLevel.isFiner()) ...

is interchangeable with the code:

if (traceLevel == TraceLevel.FINER) ...

Returns:

true if this object represents the FINER level, false otherwise.

isFinest

public boolean isFinest()

Determine if this TraceLevel object represents the FINEST level.

This method is effectively equivalent to the conditional test: (this == FINEST), ie. the code:

if (traceLevel.isFinest()) ...

is interchangeable with the code:

if (traceLevel == TraceLevel.FINEST) ...

Returns:

true if this object represents the FINEST level, false otherwise.

isHigherLevel

public boolean isHigherLevel(TraceLevel other)
                      throws NullPointerException

Determine if this TraceLevel object represents a level that is higher than some other TraceLevel object. For the purposes of the comparison OFF is considered a higher level than SEVERE, and FINEST is the lowest level.

Parameters:

other - the TraceLevel object to compare this with.

Returns:

true if the level represented by this TraceLevel object is a higher level than the level represented by the specified TraceLevel object, false otherwise.

Throws:

NullPointerException - if other is null.

equals

public boolean equals(Object obj)

Compare this trace level for equality with another.

Overrides:

equals in class Object

Parameters:

obj - the object to compare this with.

Returns:

true if obj is an instance of this class representing the same level as this, false otherwise.

hashCode

public int hashCode()

Get a hash code value for this trace level.

Overrides:

hashCode in class Object

Returns:

a hash code value.

toString

public String toString()

Get the textual representation of the TraceLevel object.

Overrides:

toString in class Object

Returns:

the textual representation of the TraceLevel object.