Package com.sun.enterprise.deployment.util

Class TypeUtil

java.lang.Object

com.sun.enterprise.deployment.util.TypeUtil

public class TypeUtil
extends Object

Datatype management utility methods

Constructor Summary

Constructors

Constructor	Description
TypeUtil()

Method Summary

Modifier and Type	Method	Description
static String	addCommas(float f)	Deprecated. Use standard java.* APIs which create the correct localized number format.
static String	addCommas(String numStr)	Deprecated. Use standard java.* APIs which create the correct localized number format.
static String	arrayToString(String[] from, String separator)	Convert an array of strings to a single line with elements separated by the given separator.
static Method	getDeclaredMethod(Class declaringClass, ClassLoader loader, String name, String[] paramClassNames)
static Method	getMethod(Class declaringClass, ClassLoader loader, String name, String[] paramClassNames)
static Set	getSuperInterfaces(ClassLoader cl, String className, String baseClassName)	Get all super-interfaces of a class, excluding the given base interface.
static int	hashCode(String s)	Work around a performance bug in String.hashCode() for strings longer than sixteen characters, by calculating a (slower) hash on all the characters in the string.
static int	intGetBytes(int src, byte[] buf, int offset)	Place a byte representation of src into the byte array buf.
static int	intGetChars(int src, char[] buf, int offset)	Place a character representation of src into the buffer.
static boolean	isSubclassOf(Class sub, Class sup)	Deprecated. Use sup.isAssignableFrom(sub)
static Class[]	paramClassNamesToTypes(String[] paramClassNames, ClassLoader loader)	Convert String array of class names into array of Classes.
static String	propertyNameToSetterMethod(String propertyName)	Convert a java beans property name to a setter method name
static boolean	sameMethodSignature(Method m1, Method m2)	Compares the signatures of two methods to see if they have the same method name, parameters, and return type.
static boolean	sameParamTypes(Method m1, Method m2)	Compares the signatures of two methods to see if they have the same numer of parameters and same parameter types.
static String	setterMethodToPropertyName(String setterMethodName)	Convert a java beans setter method to its property name.
static String[]	stringToArray(String from, String separator)	Convert a string of delimited strings to an array of strings.
static String	truncateFloat(float f, int digits)	Truncate a float to the required number of significant digits.
static String[]	wordWrap(String msg, int widthInChars)	Word-wrap a string into an array of strings.

Methods inherited from class java.lang.Object

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

Constructor Detail

TypeUtil

public TypeUtil()

Method Detail

intGetChars

public static int intGetChars(int src,
                              char[] buf,
                              int offset)

Place a character representation of src into the buffer. No formatting (e.g. localization) is done.

Parameters:

src - - the integer to convert. Must not be Integer.MIN_VALUE.

buf - - the buf to put the result in

offset - - the offset in buf to place the first digit

Returns:

the number of bytes added to buf

Throws:

IllegalArgumentException - if src is Integer.MIN_VALUE.

intGetBytes

public static int intGetBytes(int src,
                              byte[] buf,
                              int offset)

Place a byte representation of src into the byte array buf. No commas or any other formatting is done to the integer.

Parameters:

src - - the integer to convert. Must not be Integer.MIN_VALUE.

buf - - the buf to put the result in

offset - - the offset in buf to place the first digit

Returns:

the number of bytes added to buf

Throws:

IllegalArgumentException - if src is Integer.MIN_VALUE.

hashCode

public static int hashCode(String s)

Work around a performance bug in String.hashCode() for strings longer than sixteen characters, by calculating a (slower) hash on all the characters in the string. Not needed starting in the JDK 1.2 release.

wordWrap

public static String[] wordWrap(String msg,
                                int widthInChars)

Word-wrap a string into an array of strings. Space is the only separator character recognized.

arrayToString

public static String arrayToString(String[] from,
                                   String separator)

Convert an array of strings to a single line with elements separated by the given separator. Similar to Tcl's join.

Parameters:

from - the array of strings to convert

separator - the string to insert between each element

stringToArray

public static String[] stringToArray(String from,
                                     String separator)

Convert a string of delimited strings to an array of strings. Similar to AWK's and Tcl's split.

Parameters:

from - the string to convert

separator - the delimiter

truncateFloat

public static String truncateFloat(float f,
                                   int digits)

Truncate a float to the required number of significant digits.

addCommas

public static String addCommas(float f)

Deprecated.

Use standard java.* APIs which create the correct localized number format.

Add commas to a number for "123,456.7" style formatting.

addCommas

public static String addCommas(String numStr)

Deprecated.

Use standard java.* APIs which create the correct localized number format.

Add commas to a number for "123,456.7" style formatting.

isSubclassOf

public static boolean isSubclassOf(Class sub,
                                   Class sup)

Deprecated.

Use sup.isAssignableFrom(sub)

Test if a class is a subclass of another.

getSuperInterfaces

public static Set getSuperInterfaces(ClassLoader cl,
                                     String className,
                                     String baseClassName)
                              throws ClassNotFoundException

Get all super-interfaces of a class, excluding the given base interface. Returns a set of strings containing class names.

Throws:

ClassNotFoundException

getMethod

public static Method getMethod(Class declaringClass,
                               ClassLoader loader,
                               String name,
                               String[] paramClassNames)
                        throws Exception

Throws:

Exception

getDeclaredMethod

public static Method getDeclaredMethod(Class declaringClass,
                                       ClassLoader loader,
                                       String name,
                                       String[] paramClassNames)
                                throws Exception

Throws:

Exception

sameParamTypes

public static boolean sameParamTypes(Method m1,
                                     Method m2)

Compares the signatures of two methods to see if they have the same numer of parameters and same parameter types. Note that this equality check does NOT cover : 1) declaring class 2) exceptions 3) method name 4) return type

sameMethodSignature

public static boolean sameMethodSignature(Method m1,
                                          Method m2)

Compares the signatures of two methods to see if they have the same method name, parameters, and return type. Note that this equality check does NOT cover : 1) declaring class 2) exceptions

setterMethodToPropertyName

public static String setterMethodToPropertyName(String setterMethodName)

Convert a java beans setter method to its property name.

propertyNameToSetterMethod

public static String propertyNameToSetterMethod(String propertyName)

Convert a java beans property name to a setter method name

paramClassNamesToTypes

public static Class[] paramClassNamesToTypes(String[] paramClassNames,
                                             ClassLoader loader)
                                      throws Exception

Convert String array of class names into array of Classes.

Throws:

Exception