Package Summary  Overview Summary

class:System.Logger [NONE]

method:getName() [NONE]

  • getName

    String getName()
    Returns the name of this logger.
    Returns:
    the logger name.

method:isLoggable(java.lang.System.Logger.Level) [NONE]

  • isLoggable

    boolean isLoggable​(System.Logger.Level level)
    Checks if a message of the given level would be logged by this logger.
    Parameters:
    level - the log message level.
    Returns:
    true if the given log message level is currently being logged.
    Throws:
    NullPointerException - if level is null.

method:log(java.lang.System.Logger.Level,java.lang.String) [NONE]

  • log

    default void log​(System.Logger.Level level,
                 String msg)
    Logs a message.
    Implementation Requirements:
    The default implementation for this method calls this.log(level, (ResourceBundle)null, msg, (Object[])null);
    Parameters:
    level - the log message level.
    msg - the string message (or a key in the message catalog, if this logger is a localized logger ); can be null.
    Throws:
    NullPointerException - if level is null.

method:log(java.lang.System.Logger.Level,java.util.function.Supplier) [NONE]

  • log

    default void log​(System.Logger.Level level,
                 Supplier<String> msgSupplier)
    Logs a lazily supplied message. If the logger is currently enabled for the given log message level then a message is logged that is the result produced by the given supplier function. Otherwise, the supplier is not operated on.
    Implementation Requirements:
    When logging is enabled for the given level, the default implementation for this method calls this.log(level, (ResourceBundle)null, msgSupplier.get(), (Object[])null);
    Parameters:
    level - the log message level.
    msgSupplier - a supplier function that produces a message.
    Throws:
    NullPointerException - if level is null, or msgSupplier is null.

method:log(java.lang.System.Logger.Level,java.lang.Object) [NONE]

  • log

    default void log​(System.Logger.Level level,
                 Object obj)
    Logs a message produced from the given object. If the logger is currently enabled for the given log message level then a message is logged that, by default, is the result produced from calling toString on the given object. Otherwise, the object is not operated on.
    Implementation Requirements:
    When logging is enabled for the given level, the default implementation for this method calls this.log(level, (ResourceBundle)null, obj.toString(), (Object[])null);
    Parameters:
    level - the log message level.
    obj - the object to log.
    Throws:
    NullPointerException - if level is null, or obj is null.

method:log(java.lang.System.Logger.Level,java.lang.String,java.lang.Throwable) [NONE]

  • log

    default void log​(System.Logger.Level level,
                 String msg,
                 Throwable thrown)
    Logs a message associated with a given throwable.
    Implementation Requirements:
    The default implementation for this method calls this.log(level, (ResourceBundle)null, msg, thrown);
    Parameters:
    level - the log message level.
    msg - the string message (or a key in the message catalog, if this logger is a localized logger ); can be null.
    thrown - a Throwable associated with the log message; can be null.
    Throws:
    NullPointerException - if level is null.

method:log(java.lang.System.Logger.Level,java.util.function.Supplier,java.lang.Throwable) [NONE]

  • log

    default void log​(System.Logger.Level level,
                 Supplier<String> msgSupplier,
                 Throwable thrown)
    Logs a lazily supplied message associated with a given throwable. If the logger is currently enabled for the given log message level then a message is logged that is the result produced by the given supplier function. Otherwise, the supplier is not operated on.
    Implementation Requirements:
    When logging is enabled for the given level, the default implementation for this method calls this.log(level, (ResourceBundle)null, msgSupplier.get(), thrown);
    Parameters:
    level - one of the log message level identifiers.
    msgSupplier - a supplier function that produces a message.
    thrown - a Throwable associated with log message; can be null.
    Throws:
    NullPointerException - if level is null, or msgSupplier is null.

method:log(java.lang.System.Logger.Level,java.lang.String,java.lang.Object...) [NONE]

  • log

    default void log​(System.Logger.Level level,
                 String format,
                 Object... params)
    Logs a message with an optional list of parameters.
    Implementation Requirements:
    The default implementation for this method calls this.log(level, (ResourceBundle)null, format, params);
    Parameters:
    level - one of the log message level identifiers.
    format - the string message format in MessageFormat format, (or a key in the message catalog, if this logger is a localized logger ); can be null.
    params - an optional list of parameters to the message (may be none).
    Throws:
    NullPointerException - if level is null.

method:log(java.lang.System.Logger.Level,java.util.ResourceBundle,java.lang.String,java.lang.Throwable) [NONE]

  • log

    void log​(System.Logger.Level level,
         ResourceBundle bundle,
         String msg,
         Throwable thrown)
    Logs a localized message associated with a given throwable. If the given resource bundle is non-null, the msg string is localized using the given resource bundle. Otherwise the msg string is not localized.
    Parameters:
    level - the log message level.
    bundle - a resource bundle to localize msg; can be null.
    msg - the string message (or a key in the message catalog, if bundle is not null); can be null.
    thrown - a Throwable associated with the log message; can be null.
    Throws:
    NullPointerException - if level is null.

method:log(java.lang.System.Logger.Level,java.util.ResourceBundle,java.lang.String,java.lang.Object...) [NONE]

  • log

    void log​(System.Logger.Level level,
         ResourceBundle bundle,
         String format,
         Object... params)
    Logs a message with resource bundle and an optional list of parameters. If the given resource bundle is non-null, the format string is localized using the given resource bundle. Otherwise the format string is not localized.
    Parameters:
    level - the log message level.
    bundle - a resource bundle to localize format; can be null.
    format - the string message format in MessageFormat format, (or a key in the message catalog if bundle is not null); can be null.
    params - an optional list of parameters to the message (may be none).
    Throws:
    NullPointerException - if level is null.

© 2018 Oracle Corporation and/or its affiliates