com.boomi.util

Class ClassUtils

java.lang.Object

com.boomi.util.ClassUtils

public class ClassUtils
extends Object

Operates on classes without using reflection.

This class handles invalid null inputs as best it can. Each method documents its behaviour in more detail.

The notion of a canonical name includes the human readable name for the type, for example int[]. The non-canonical method variants work with the JVM names, such as [I.

Since:

2.0

Field Summary

Fields

Modifier and Type	Field and Description
static String	INNER_CLASS_SEPARATOR The inner class separator String: "$".
static char	INNER_CLASS_SEPARATOR_CHAR The inner class separator character: '$' == 36.
static String	PACKAGE_SEPARATOR The package separator String: ".".
static char	PACKAGE_SEPARATOR_CHAR The package separator character: '.' == 46.

Constructor Summary

Constructors

Constructor and Description
ClassUtils() ClassUtils instances should NOT be constructed in standard programming.

Method Summary

Modifier and Type	Method and Description
static String	getPackageName(Class cls) Gets the package name of a Class.
static String	getPackageName(Object object, String valueIfNull) Gets the package name of an Object.
static String	getPackageName(String className) Gets the package name from a String.
static String	getShortClassName(Class cls) Gets the class name minus the package name from a Class.
static String	getShortClassName(Object object, String valueIfNull) Gets the class name minus the package name for an Object.
static String	getShortClassName(String className) Gets the class name minus the package name from a String.

Methods inherited from class java.lang.Object

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

Field Detail

PACKAGE_SEPARATOR_CHAR

public static final char PACKAGE_SEPARATOR_CHAR

The package separator character: '.' == 46.

See Also:

Constant Field Values

PACKAGE_SEPARATOR

public static final String PACKAGE_SEPARATOR

The package separator String: ".".

INNER_CLASS_SEPARATOR_CHAR

public static final char INNER_CLASS_SEPARATOR_CHAR

The inner class separator character: '$' == 36.

See Also:

Constant Field Values

INNER_CLASS_SEPARATOR

public static final String INNER_CLASS_SEPARATOR

The inner class separator String: "$".

Constructor Detail

ClassUtils

public ClassUtils()

ClassUtils instances should NOT be constructed in standard programming. Instead, the class should be used as ClassUtils.getShortClassName(cls).

This constructor is public to permit tools that require a JavaBean instance to operate.

Method Detail

getShortClassName

public static String getShortClassName(Object object,
                                       String valueIfNull)

Gets the class name minus the package name for an Object.

Parameters:

object - the class to get the short name for, may be null

valueIfNull - the value to return if null

Returns:

the class name of the object without the package name, or the null value

getShortClassName

public static String getShortClassName(Class cls)

Gets the class name minus the package name from a Class.

Parameters:

cls - the class to get the short name for.

Returns:

the class name without the package name or an empty string

getShortClassName

public static String getShortClassName(String className)

Gets the class name minus the package name from a String.

The string passed in is assumed to be a class name - it is not checked.

Parameters:

className - the className to get the short name for

Returns:

the class name of the class without the package name or an empty string

getPackageName

public static String getPackageName(Object object,
                                    String valueIfNull)

Gets the package name of an Object.

Parameters:

object - the class to get the package name for, may be null

valueIfNull - the value to return if null

Returns:

the package name of the object, or the null value

getPackageName

public static String getPackageName(Class cls)

Gets the package name of a Class.

Parameters:

cls - the class to get the package name for, may be null.

Returns:

the package name or an empty string

getPackageName

public static String getPackageName(String className)

Gets the package name from a String.

The string passed in is assumed to be a class name - it is not checked.

If the class is unpackaged, return an empty string.

Parameters:

className - the className to get the package name for, may be null

Returns:

the package name or an empty string