类 com.fr.third.apache.log4j.Category
的使用

使用Category的程序包

程序包	说明
com.fr.third.apache.log4j	The main log4j package.
com.fr.third.apache.log4j.config	Package used in getting/setting component properties.
com.fr.third.apache.log4j.jmx	This package lets you manage log4j settings using JMX.
com.fr.third.apache.log4j.pattern	Provides classes implementing format specifiers in conversion patterns.
com.fr.third.apache.log4j.spi	Contains part of the System Programming Interface (SPI) needed to extend log4j.

com.fr.third.apache.log4j中Category的使用

com.fr.third.apache.log4j中Category的子类

限定符和类型	类和说明
class	Logger This is the central class in the log4j package.

声明为Category的com.fr.third.apache.log4j中的字段

限定符和类型	字段和说明
protected Category	Category.parent The parent of this category.

返回Category的com.fr.third.apache.log4j中的方法

限定符和类型	方法和说明
static Category	Category.getInstance(java.lang.Class clazz) 已过时。 Please make sure to use Logger.getLogger(Class) instead.
static Category	Category.getInstance(java.lang.String name) 已过时。 Make sure to use Logger.getLogger(String) instead.
Category	Category.getParent() Returns the parent of this category.
static Category	Category.getRoot() 已过时。 Please use Logger.getRootLogger() instead.

参数类型为Category的com.fr.third.apache.log4j中的方法

限定符和类型	方法和说明
void	Hierarchy.emitNoAppenderWarning(Category cat)
void	Hierarchy.fireAddAppenderEvent(Category logger, Appender appender)

com.fr.third.apache.log4j.config中Category的使用

参数类型为Category的com.fr.third.apache.log4j.config中的方法

限定符和类型	方法和说明
protected void	PropertyPrinter.printOptions(java.io.PrintWriter out, Category cat)

com.fr.third.apache.log4j.jmx中Category的使用

参数类型为Category的com.fr.third.apache.log4j.jmx中的方法

限定符和类型	方法和说明
void	HierarchyDynamicMBean.addAppenderEvent(Category logger, Appender appender)
void	HierarchyDynamicMBean.removeAppenderEvent(Category cat, Appender appender)

com.fr.third.apache.log4j.pattern中Category的使用

参数类型为Category的com.fr.third.apache.log4j.pattern中的构造器

构造器和说明
LogEvent(java.lang.String fqnOfCategoryClass, Category logger, long timeStamp, Priority level, java.lang.Object message, java.lang.Throwable throwable) Instantiate a LoggingEvent from the supplied parameters.
LogEvent(java.lang.String fqnOfCategoryClass, Category logger, Priority level, java.lang.Object message, java.lang.Throwable throwable) Instantiate a LoggingEvent from the supplied parameters.

com.fr.third.apache.log4j.spi中Category的使用

com.fr.third.apache.log4j.spi中Category的子类

限定符和类型	类和说明
class	NOPLogger No-operation implementation of Logger used by NOPLoggerRepository.
class	RootCategory 已过时。 Replaced by RootLogger.
class	RootLogger RootLogger sits at the top of the logger hierachy.

返回Category的com.fr.third.apache.log4j.spi中的方法

限定符和类型	方法和说明
Category	LoggingEvent.getLogger() Gets the logger of the event.

参数类型为Category的com.fr.third.apache.log4j.spi中的方法

限定符和类型	方法和说明
void	HierarchyEventListener.addAppenderEvent(Category cat, Appender appender)
void	NOPLoggerRepository.emitNoAppenderWarning(Category cat)
void	LoggerRepository.emitNoAppenderWarning(Category cat)
void	NOPLoggerRepository.fireAddAppenderEvent(Category logger, Appender appender)
void	LoggerRepository.fireAddAppenderEvent(Category logger, Appender appender)
void	HierarchyEventListener.removeAppenderEvent(Category cat, Appender appender)

参数类型为Category的com.fr.third.apache.log4j.spi中的构造器

构造器和说明
LoggingEvent(java.lang.String fqnOfCategoryClass, Category logger, long timeStamp, Level level, java.lang.Object message, java.lang.String threadName, ThrowableInformation throwable, java.lang.String ndc, LocationInfo info, java.util.Map properties) Create new instance.
LoggingEvent(java.lang.String fqnOfCategoryClass, Category logger, long timeStamp, Priority level, java.lang.Object message, java.lang.Throwable throwable) Instantiate a LoggingEvent from the supplied parameters.
LoggingEvent(java.lang.String fqnOfCategoryClass, Category logger, Priority level, java.lang.Object message, java.lang.Throwable throwable) Instantiate a LoggingEvent from the supplied parameters.
ThrowableInformation(java.lang.Throwable throwable, Category category) Create a new instance.