Module openj9.dtfj

Package com.ibm.j9ddr.vm29.j9

Class J9ConstantHelper

java.lang.Object

com.ibm.j9ddr.vm29.j9.J9ConstantHelper

public final class J9ConstantHelper
extends Object

Constructor Summary

Constructors

Constructor	Description
J9ConstantHelper()

Method Summary

Modifier and Type	Method	Description
static boolean	getBoolean(Class<?> clazz, String name, boolean defaultValue)	Using reflection, read the value of a public static final boolean field from the given class or, if the field is not present, return the default value provided.
static int	getInt(Class<?> clazz, String name, int defaultValue)	Using reflection, read the value of a public static final int field from the given class or, if the field is not present, return the default value provided.
static long	getLong(Class<?> clazz, String name, long defaultValue)	Using reflection, read the value of a public static final long field from the given class or, if the field is not present, return the default value provided.

Methods declared in class java.lang.Object

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

Constructor Detail

J9ConstantHelper

public J9ConstantHelper()

Method Detail

getLong

public static long getLong(Class<?> clazz,
                           String name,
                           long defaultValue)

Using reflection, read the value of a public static final long field from the given class or, if the field is not present, return the default value provided.

Parameters:

clazz - the class which owns the field of interest

name - the name of the field

defaultValue - the value to be returned if the field is not present

Returns:

the value of the field, or the default value

getBoolean

public static boolean getBoolean(Class<?> clazz,
                                 String name,
                                 boolean defaultValue)

Using reflection, read the value of a public static final boolean field from the given class or, if the field is not present, return the default value provided.

Parameters:

clazz - the class which owns the field of interest

name - the name of the field

defaultValue - the value to be returned if the field is not present

Returns:

the value of the boolean field, or the default value

getInt

public static int getInt(Class<?> clazz,
                         String name,
                         int defaultValue)

Using reflection, read the value of a public static final int field from the given class or, if the field is not present, return the default value provided.

Parameters:

clazz - the class which owns the field of interest

name - the name of the field

defaultValue - the value to be returned if the field is not present

Returns:

the value of the field, or the default value