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Java Source Code / Java Documentation » Database DBMS » db derby 10.2 » org.apache.derby.iapi.services.diag

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Class Diagram

Java Document (Java Doc)

java.lang .Object

org.apache.derby.iapi.services.diag .DiagnosticUtil

DiagnosticUtil
public class DiagnosticUtil (Code)
	The Diagnostic framework is meant to provide a way to include as much diagnostic capability within the distributed release of the cloudscape product without adversely affecting the runtime speed or foot print of a running configuration that needs not use this information. In order to decrease the class size of running objects diagnostic information should be put in "helper" classes. So to provide diagnostic capabiility on the implementation of class Foo.java create a class D_Foo.java. Class D_Foo must implement the Diagnosticable interface. This class provide utility functions to get at the information provided by the D_* helper class: findDiagnostic() - given and object "obj", get an instance of D_obj. toDiagString() - return the "best" diagnostic string available about a given object.

Method Summary
public static Diagnosticable	findDiagnostic(Object ref) Given an object return instance of the diagnostic object for this class.
public static String	toDiagString(Object obj) Return a diagnostic string associated with an object. A utility interface to use if you just want to print a single string that represents the object in question.

Method Detail

findDiagnostic
public static Diagnosticable findDiagnostic(Object ref)(Code)
	Given an object return instance of the diagnostic object for this class. Given an object this routine will determine the classname of the object and then try to instantiate a new instance of the diagnostic object for this class by prepending on "D_" to the last element of theclassname. If no matching class is found then the same lookup is made on the super-class of the object, looking all the way up the hierachy until a diagnostic class is found. This routine will call "init(ref)" on the new instance and then return the new instance. A new instance of the diagnostic object for input object, ornull if one could not be found for some reason. Parameters: ref - The object which to build the diagnostic object for.

toDiagString

public static String toDiagString(Object obj)(Code)

Return a diagnostic string associated with an object.

A utility interface to use if you just want to print a single string that represents the object in question. In following order this routine will deliver the string to use: 1) find diagnostic help class, and use class.diag() 2) else just use class.toString()

The string describing the class input.
Parameters:
obj - The object to print out.

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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