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Java Source Code / Java Documentation » Portal » uPortal_rel 2 6 1 GA » org.jasig.portal.lang

Source Cross Reference Class Diagram Java Document (Java Doc)

java.lang .Object

org.jasig.portal.lang .StackTrace

StackTrace
final public class StackTrace (Code)
	The `StackTrace` object represents a single stack frame of information. The entire set of stack frames is represented as an array of `StackTrace` object. Note: The stack frame information is not always available because some JVMs strip some or all the required information. author: Jan Nielsen version: "$Revision: 35982 $"

Method Summary
final static StackTrace[]	convertStackTrace(Object[] stackTrace) Converts a JDK 1.4 stack trace to this object.
public boolean	equals(Object obj) Returns `true if the specified object is another StackTrace instance representing the same execution point as this instance.`
final public String	getClassName() Returns the name of the class.
final public String	getFileName() Returns the name of the source file.
final public int	getLineNumber() Returns the line number in the source file.
final public String	getMethodName() Returns the name of the method.
final public static StackTrace[]	getStackTrace(Throwable throwable) Returns all `StackTrace`s in an array of the specified throwable.
final static StackTrace[]	getStackTrace(Throwable throwable, String stackTrace) Returns all `StackTrace`s in an array.
final public static StackTrace[]	getStackTrace() Returns the stack trace elements of the client.
final public static StackTrace	getStackTrace(int index) Returns the specified stack trace element if it exists.
public int	hashCode() Returns a hash code value for this stack trace element.
final public boolean	isNativeMethod() Returns `true` if method is implemented natively.
final public String	toString() Returns a representation of the stack frame element.
final public static String	toString(StackTrace[] elements) Returns a string representation of the stack trace elements.

Method Detail

convertStackTrace
final static StackTrace[] convertStackTrace(Object[] stackTrace)(Code)
	Converts a JDK 1.4 stack trace to this object. Parameters: stackTrace - array of JDK 1.4 stack trace objects array of `StackTrace` objects

equals
public boolean equals(Object obj)(Code)
	Returns true if the specified object is another StackTrace instance representing the same execution point as this instance. Two stack trace elements a and b are equal if and only if: 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)); } Parameters: obj - the object to be compared with this stack traceelement true if the specified object is anotherStackTrace instance representing the sameexecution point as this instance; otherwise false

getClassName
final public String getClassName()(Code)
	Returns the name of the class. The parser should always be able to identify the calling class. name of the class

getFileName
final public String getFileName()(Code)
	Returns the name of the source file. If the parser failed to find the source file name the value `"Unknown"` will be returned. name of the source file

getLineNumber
final public int getLineNumber()(Code)
	Returns the line number in the source file. If the parser is unable to determine the line number the value `-1` will be returned. If the parser determines the method is a native, a -2 is returned. source code line number, or -1 or -2

getMethodName
final public String getMethodName()(Code)
	Returns the name of the method. The parser should alwas be able to identify the calling method name. name of the method

getStackTrace
final public static StackTrace[] getStackTrace(Throwable throwable)(Code)
	Returns all `StackTrace`s in an array of the specified throwable. Parameters: throwable - throwable being parsed array of `StackTrace`s throws: NullPointerException - if throwable is `null` throws: NullPointerException - if stackTrace is `null` throws: IllegalArgumentException - if stackTrace is an emptystring

getStackTrace
final static StackTrace[] getStackTrace(Throwable throwable, String stackTrace)(Code)
	Returns all `StackTrace`s in an array. This method is used by the `Chained` concrete classes to avoid a circular dependency. The throwable, and its string output must both be specified. Both are required because the throwable could be a `com.sct.pipeline.lang.ChainedException` which would result in a circular dependency if a `printStackTrace` was used in this method to retrieve the trace information. Invoke this method in the following fashion: `StringWriter stringWriter = new StringWriter(); PrintWriter printWriter = new PrintWriter( stringWriter ); Throwable t = new Throwable(); t.printStackTrace( printWriter ); printWriter.close(); StackTrace[] frames = getStackTraceElements( t, stringWriter.toString() );` Parameters:* throwable - throwable being parsed Parameters: stackTrace - string output of`throwable.printStackTrace` array of `StackTrace`s throws: NullPointerException - if throwable is `null` throws: NullPointerException - if stackTrace is `null` throws: IllegalArgumentException - if stackTrace is an empty string

getStackTrace
final public static StackTrace[] getStackTrace()(Code)
	Returns the stack trace elements of the client. The array of stack trace elements start with the client's invoking frame in the zeroth element. array of stack trace elements of the client

getStackTrace
final public static StackTrace getStackTrace(int index)(Code)
	Returns the specified stack trace element if it exists. If an invalid, either too large or too small, index is specified `null` is returned. Parameters: index - index of the stack trace element to return stack trace element at the index or `null`

hashCode
public int hashCode()(Code)
	Returns a hash code value for this stack trace element. hash code value

isNativeMethod
final public boolean isNativeMethod()(Code)
	Returns `true` if method is implemented natively. `true` is native method; otherwise`false`

toString
final public String toString()(Code)
	Returns a representation of the stack frame element. The format of the information may vary but the following examples are typical: `mycompany.MyClass.snap(MyClass.java:9)` `mycompany.MyClass.snap(MyClass.java)` `mycompany.MyClass.snap(Unknown Source)` `mycompany.MyClass.snap(Native Method)` string presentation of the stack frame.

toString
final public static String toString(StackTrace[] elements)(Code)
	Returns a string representation of the stack trace elements. Parameters: elements - stack trace elements to stringify string representation of the stack trace array

Methods inherited from java.lang.Object

native protected Object clone() throws CloneNotSupportedException(Code)(Java Doc)
public boolean equals(Object obj)(Code)(Java Doc)
protected void finalize() throws Throwable(Code)(Java Doc)
final native public Class getClass()(Code)(Java Doc)
native public int hashCode()(Code)(Java Doc)
final native public void notify()(Code)(Java Doc)
final native public void notifyAll()(Code)(Java Doc)
public String toString()(Code)(Java Doc)
final native public void wait(long timeout) throws InterruptedException(Code)(Java Doc)
final public void wait(long timeout, int nanos) throws InterruptedException(Code)(Java Doc)
final public void wait() throws InterruptedException(Code)(Java Doc)

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