Package org.apache.calcite.util

Class Unsafe

java.lang.Object

org.apache.calcite.util.Unsafe

public class Unsafe
extends Object

Contains methods that call JDK methods that the forbidden APIs checker does not approve of.

This class is excluded from the check, so methods called via this class will not fail the build.

Method Summary

Modifier and Type	Method	Description
static void	clear(StringWriter sw)	Clears the contents of a StringWriter.
static void	notifyAll(Object o)	Calls Object.notifyAll().
static String	regexpReplace(String s, Pattern pattern, String replacement, int pos, int occurrence)	Helper for the SQL REGEXP_REPLACE function.
static void	systemExit(int status)	Calls System.exit(int).
static void	wait(Object o)	Calls Object.wait().

Methods inherited from class java.lang.Object

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

Method Details

systemExit

public static void systemExit(int status)

Calls System.exit(int).

notifyAll

public static void notifyAll(Object o)

Calls Object.notifyAll().

wait

public static void wait(Object o)
                 throws InterruptedException

Calls Object.wait().

Throws:

InterruptedException

clear

public static void clear(StringWriter sw)

Clears the contents of a StringWriter.

regexpReplace

public static String regexpReplace(String s,
 Pattern pattern,
 String replacement,
 int pos,
 int occurrence)

Helper for the SQL REGEXP_REPLACE function.

It is marked "unsafe" because it uses StringBuffer; Versions of Matcher.appendReplacement(StringBuffer, String) and Matcher.appendTail(StringBuffer) that use StringBuilder are not available until JDK 9.