mondrian.util
Class UtilCompatibleJdk14

java.lang.Object
  mondrian.util.UtilCompatibleJdk14

All Implemented Interfaces:

UtilCompatible

public class UtilCompatibleJdk14
extends Object
implements UtilCompatible

Implementation of UtilCompatible which runs in JDK 1.4.

The code uses JDK 1.5 constructs such as generics and for-each loops, but retroweaver can convert these. It does not use java.util.EnumSet, which is important, because retroweaver has trouble with this.

Since:

Feb 5, 2007

Author:

jhyde

Constructor Summary

UtilCompatibleJdk14()

Method Summary

<T extends Comparable<T>> int	binarySearch(T[] ts, int start, int end, T t) As Arrays.binarySearch(Object[], int, int, Object), but available pre-JDK 1.6.
void	cancelAndCloseStatement(Statement stmt) Cancels and closes a SQL Statement object.
<T> T	compileScript(Class<T> iface, String script, String engineName) Compiles a script to yield a Java interface.
String	generateUuidString()
static String	generateUuidStringStatic()
<T> T	getAnnotation(Method method, String annotationClassName, T defaultValue)
Util.MemoryInfo	getMemoryInfo() Creates an object from which to get information about system memory use.
BigDecimal	makeBigDecimalFromDouble(double d) This generates a BigDecimal that can have a precision that does not reflect the precision of the input double.
<T> Set<T>	newIdentityHashSet() Creates a hash set that, like IdentityHashMap, compares keys using identity.
Timer	newTimer(String name, boolean isDaemon) Equivalent to Timer.Timer(String, boolean).
String	quotePattern(String s)
<T> void	threadLocalRemove(ThreadLocal<T> threadLocal) Removes a thread local from the current thread.

Methods inherited from class java.lang.Object

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

Constructor Detail

UtilCompatibleJdk14

public UtilCompatibleJdk14()

Method Detail

makeBigDecimalFromDouble

public BigDecimal makeBigDecimalFromDouble(double d)

This generates a BigDecimal that can have a precision that does not reflect the precision of the input double.

Specified by:

makeBigDecimalFromDouble in interface UtilCompatible

Parameters:

d - input double

Returns:

BigDecimal

quotePattern

public String quotePattern(String s)

Specified by:

quotePattern in interface UtilCompatible

getAnnotation

public <T> T getAnnotation(Method method,
                           String annotationClassName,
                           T defaultValue)

Specified by:

getAnnotation in interface UtilCompatible

generateUuidString

public String generateUuidString()

Specified by:

generateUuidString in interface UtilCompatible

generateUuidStringStatic

public static String generateUuidStringStatic()

compileScript

public <T> T compileScript(Class<T> iface,
                           String script,
                           String engineName)

Description copied from interface: UtilCompatible

Compiles a script to yield a Java interface.

Specified by:

compileScript in interface UtilCompatible

Type Parameters:

T - Interface

Parameters:

iface - Interface script should implement

script - Script code

engineName - Name of engine (e.g. "JavaScript")

Returns:

Object that implements given interface

threadLocalRemove

public <T> void threadLocalRemove(ThreadLocal<T> threadLocal)

Description copied from interface: UtilCompatible

Removes a thread local from the current thread.

From JDK 1.5 onwards, calls ThreadLocal.remove(); before that, no-ops.

Specified by:

threadLocalRemove in interface UtilCompatible

Type Parameters:

T - Type

Parameters:

threadLocal - Thread local

getMemoryInfo

public Util.MemoryInfo getMemoryInfo()

Description copied from interface: UtilCompatible

Creates an object from which to get information about system memory use. From JDK 1.5 onwards, uses MemoryPoolMXBean.

Specified by:

getMemoryInfo in interface UtilCompatible

Returns:

Memory info

newTimer

public Timer newTimer(String name,
                      boolean isDaemon)

Description copied from interface: UtilCompatible

Equivalent to Timer.Timer(String, boolean). (Introduced in JDK 1.5.)

Specified by:

newTimer in interface UtilCompatible

Parameters:

name - the name of the associated thread

isDaemon - true if the associated thread should run as a daemon

Returns:

timer

cancelAndCloseStatement

public void cancelAndCloseStatement(Statement stmt)

Description copied from interface: UtilCompatible

Cancels and closes a SQL Statement object. If errors are encountered, they should be logged under Util.

Specified by:

cancelAndCloseStatement in interface UtilCompatible

Parameters:

stmt - The statement to close.

newIdentityHashSet

public <T> Set<T> newIdentityHashSet()

Description copied from interface: UtilCompatible

Creates a hash set that, like IdentityHashMap, compares keys using identity.

Specified by:

newIdentityHashSet in interface UtilCompatible

Type Parameters:

T - Element type

Returns:

Set

binarySearch

public <T extends Comparable<T>> int binarySearch(T[] ts,
                                                  int start,
                                                  int end,
                                                  T t)

Description copied from interface: UtilCompatible

As Arrays.binarySearch(Object[], int, int, Object), but available pre-JDK 1.6.

Specified by:

binarySearch in interface UtilCompatible