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Java™ Platform Standard Ed. 6 |
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java.lang.Object java.lang.StackTraceElement
public final class StackTraceElement
An element in a stack trace, as returned by Throwable.getStackTrace()
. Each element represents a single stack frame.
All stack frames except for the one at the top of the stack represent
a method invocation. The frame at the top of the stack represents the
execution point at which the stack trace was generated. Typically,
this is the point at which the throwable corresponding to the stack trace
was created.
Constructor Summary | |
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StackTraceElement(String declaringClass,
String methodName,
String fileName,
int lineNumber)
Creates a stack trace element representing the specified execution point. |
Method Summary | |
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boolean |
equals(Object obj)
Returns true if the specified object is another StackTraceElement instance representing the same execution point as this instance. |
String |
getClassName()
Returns the fully qualified name of the class containing the execution point represented by this stack trace element. |
String |
getFileName()
Returns the name of the source file containing the execution point represented by this stack trace element. |
int |
getLineNumber()
Returns the line number of the source line containing the execution point represented by this stack trace element. |
String |
getMethodName()
Returns the name of the method containing the execution point represented by this stack trace element. |
int |
hashCode()
Returns a hash code value for this stack trace element. |
boolean |
isNativeMethod()
Returns true if the method containing the execution point represented by this stack trace element is a native method. |
String |
toString()
Returns a string representation of this stack trace element. |
Methods inherited from class java.lang.Object |
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clone, finalize, getClass, notify, notifyAll, wait, wait, wait |
Constructor Detail |
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public StackTraceElement(String declaringClass, String methodName, String fileName, int lineNumber)
declaringClass
- the fully qualified name of the class containing
the execution point represented by the stack trace elementmethodName
- the name of the method containing the execution point
represented by the stack trace elementfileName
- the name of the file containing the execution point
represented by the stack trace element, or null if
this information is unavailablelineNumber
- the line number of the source line containing the
execution point represented by this stack trace element, or
a negative number if this information is unavailable. A value
of -2 indicates that the method containing the execution point
is a native method
NullPointerException
- if declaringClass or
methodName is nullMethod Detail |
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public String getFileName()
public int getLineNumber()
public String getClassName()
public String getMethodName()
public boolean isNativeMethod()
public String toString()
toString
in class Object
Throwable.printStackTrace()
public boolean equals(Object obj)
equals(a.getFileName(), b.getFileName()) && a.getLineNumber() == b.getLineNumber()) && equals(a.getClassName(), b.getClassName()) && equals(a.getMethodName(), b.getMethodName())where equals is defined as:
static boolean equals(Object a, Object b) { return a==b || (a != null && a.equals(b)); }
equals
in class Object
obj
- the object to be compared with this stack trace element.
Object.hashCode()
,
Hashtable
public int hashCode()
hashCode
in class Object
Object.equals(java.lang.Object)
,
Hashtable
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Java™ Platform Standard Ed. 6 |
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