程序包 cn.taketoday.logging

类 LogMessage

java.lang.Object

cn.taketoday.logging.LogMessage

所有已实现的接口:

CharSequence

public abstract class LogMessage
extends Object
implements CharSequence

A simple log message type for use with Commons Logging, allowing for convenient lazy resolution of a given Supplier instance (typically bound to a Java 8 lambda expression) or a printf-style format string (MessageFormatter.format(java.lang.String, java.lang.Object)) in its toString().

从以下版本开始:

4.0

作者:

Juergen Hoeller

另请参阅:

• from(Supplier)
• format(String, Object)
• format(String, Object...)
• Logger.error(Object)
• Logger.warn(Object)
• Logger.info(Object)
• Logger.debug(Object)
• Logger.trace(Object)

构造器概要

构造器

构造器	说明
LogMessage()

方法概要

修饰符和类型	方法	说明
char	charAt(int index)
static LogMessage	format(String format, Object arg1)	Build a lazily formatted message from the given format string and argument.
static LogMessage	format(String format, Object... args)	Build a lazily formatted message from the given format string and varargs.
static LogMessage	format(String format, Object arg1, Object arg2)	Build a lazily formatted message from the given format string and arguments.
static LogMessage	format(String format, Object arg1, Object arg2, Object arg3)	Build a lazily formatted message from the given format string and arguments.
static LogMessage	format(String format, Object arg1, Object arg2, Object arg3, Object arg4)	Build a lazily formatted message from the given format string and arguments.
static LogMessage	from(Supplier<? extends CharSequence> supplier)	Build a lazily resolving message from the given supplier.
int	length()
CharSequence	subSequence(int start, int end)
String	toString()	This will be called by the logging provider, potentially once per log target (therefore locally caching the result here).

从类继承的方法 java.lang.Object

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

从接口继承的方法 java.lang.CharSequence

chars, codePoints, isEmpty

构造器详细资料

LogMessage

public LogMessage()

方法详细资料

length

public int length()

指定者:

length 在接口中 CharSequence

charAt

public char charAt(int index)

指定者:

charAt 在接口中 CharSequence

subSequence

public CharSequence subSequence(int start,
 int end)

指定者:

subSequence 在接口中 CharSequence

toString

public String toString()

This will be called by the logging provider, potentially once per log target (therefore locally caching the result here).

指定者:

toString 在接口中 CharSequence

覆盖:

toString 在类中 Object

from

public static LogMessage from(Supplier<? extends CharSequence> supplier)

Build a lazily resolving message from the given supplier.

参数:

supplier - the supplier (typically bound to a Java 8 lambda expression)

另请参阅:

• toString()

format

public static LogMessage format(String format,
 Object arg1)

Build a lazily formatted message from the given format string and argument.

参数:

format - the format string (following MessageFormatter.format(String, Object[]) rules)

arg1 - the argument

另请参阅:

• MessageFormatter.format(String, Object...)

format

public static LogMessage format(String format,
 Object arg1,
 Object arg2)

Build a lazily formatted message from the given format string and arguments.

参数:

format - the format string (following MessageFormatter.format(String, Object[]) rules)

arg1 - the first argument

arg2 - the second argument

另请参阅:

• MessageFormatter.format(String, Object[])

format

public static LogMessage format(String format,
 Object arg1,
 Object arg2,
 Object arg3)

Build a lazily formatted message from the given format string and arguments.

参数:

format - the format string (following MessageFormatter.format(String, Object[]) rules)

arg1 - the first argument

arg2 - the second argument

arg3 - the third argument

另请参阅:

• MessageFormatter.format(String, Object...)

format

public static LogMessage format(String format,
 Object arg1,
 Object arg2,
 Object arg3,
 Object arg4)

Build a lazily formatted message from the given format string and arguments.

参数:

format - the format string (following MessageFormatter.format(String, Object[]) rules)

arg1 - the first argument

arg2 - the second argument

arg3 - the third argument

arg4 - the fourth argument

另请参阅:

• MessageFormatter.format(String, Object...)

format

public static LogMessage format(String format,
 Object... args)

Build a lazily formatted message from the given format string and varargs.

参数:

format - the format string (following MessageFormatter.format(String, Object[]) rules)

args - the varargs array (costly, prefer individual arguments)

另请参阅:

• MessageFormatter.format(String, Object...)