Overview  Package   Class  Use  Deprecated  Index
Home >> All >> org >> apache >> derby >> iapi >> [ db overview ]	PREV CLASS  NEXT CLASS
SUMMARY:  JAVADOC |  SOURCE |  DOWNLOAD | NESTED | FIELD | CONSTR | METHOD	DETAIL: FIELD | CONSTR | METHOD

---

org.apache.derby.iapi.db
Class OptimizerTrace  

java.lang.Object
  org.apache.derby.iapi.db.OptimizerTrace

---

public class OptimizerTrace

extends java.lang.Object

This class provides static methods for controlling the optimizer tracing in a Cloudscape database.

Cloudscape reserves the right to change, rename, or remove this interface at any time.

---

Constructor Summary

OptimizerTrace()

 

Method Summary
static java.lang.String	getOptimizerTraceOutput()           Get the optimizer trace output for the last optimized query as a String.
static boolean	setOptimizerTrace(boolean onOrOff)           Control whether or not optimizer trace is on.
static boolean	setOptimizerTraceHtml(boolean onOrOff)           Control whether or not optimizer trace is generated in html.
static boolean	writeOptimizerTraceOutputHtml(java.lang.String fileName)           Send the optimizer trace output for the last optimized query to a file with a .html extension.

 

Methods inherited from class java.lang.Object

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

 

Constructor Detail

OptimizerTrace

public OptimizerTrace()

Method Detail

setOptimizerTrace

public static boolean setOptimizerTrace(boolean onOrOff)

Control whether or not optimizer trace is on.

---

setOptimizerTraceHtml

public static boolean setOptimizerTraceHtml(boolean onOrOff)

Control whether or not optimizer trace is generated in html.

---

getOptimizerTraceOutput

public static java.lang.String getOptimizerTraceOutput()

Get the optimizer trace output for the last optimized query as a String. If optimizer trace html is on, then the String will contain the html tags.

---

writeOptimizerTraceOutputHtml

public static boolean writeOptimizerTraceOutputHtml(java.lang.String fileName)

Send the optimizer trace output for the last optimized query to a file with a .html extension. If optimizer trace html is on, then the output will contain the html tags.

---

Overview  Package   Class  Use  Deprecated  Index
Home >> All >> org >> apache >> derby >> iapi >> [ db overview ]	PREV CLASS  NEXT CLASS
SUMMARY:  JAVADOC |  SOURCE |  DOWNLOAD | NESTED | FIELD | CONSTR | METHOD	DETAIL: FIELD | CONSTR | METHOD

---