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java.lang.Objectorg.apache.log4j.Layout
public abstract class Layout
Extend this abstract class to create your own log layout format.
Field Summary | |
---|---|
static java.lang.String |
LINE_SEP
|
static int |
LINE_SEP_LEN
|
Constructor Summary | |
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Layout()
|
Method Summary | |
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abstract java.lang.String |
format(org.apache.log4j.spi.LoggingEvent event)
Implement this method to create your own layout format. |
java.lang.String |
getContentType()
Returns the content type output by this layout. |
java.lang.String |
getFooter()
Returns the footer for the layout format. |
java.lang.String |
getHeader()
Returns the header for the layout format. |
abstract boolean |
ignoresThrowable()
If the layout handles the throwable object contained within LoggingEvent , then the layout should return
false . |
Methods inherited from class java.lang.Object |
---|
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Methods inherited from interface org.apache.log4j.spi.OptionHandler |
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activateOptions |
Field Detail |
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public static final java.lang.String LINE_SEP
public static final int LINE_SEP_LEN
Constructor Detail |
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public Layout()
Method Detail |
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public abstract java.lang.String format(org.apache.log4j.spi.LoggingEvent event)
public java.lang.String getContentType()
public java.lang.String getHeader()
null
.
public java.lang.String getFooter()
null
.
public abstract boolean ignoresThrowable()
LoggingEvent
, then the layout should return
false
. Otherwise, if the layout ignores throwable
object, then the layout should return true
.
The SimpleLayout
, TTCCLayout
, PatternLayout
all return true
. The org.apache.log4j.xml.XMLLayout
returns false
.
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