Package org.apache.tapestry5.plastic

Class PlasticUtils

java.lang.Object

org.apache.tapestry5.plastic.PlasticUtils

public class PlasticUtils
extends Object

Utilities for user code making use of Plastic.

Field Summary

Fields

Modifier and Type	Field	Description
static Method	TO_STRING	The toString() method inherited from Object.
static MethodDescription	TO_STRING_DESCRIPTION	The MethodDescription version of toString().

Constructor Summary

Constructors

Constructor	Description
PlasticUtils()

Method Summary

Modifier and Type	Method	Description
static Method	getMethod(Class declaringClass, String name, Class... parameterTypes)	Convenience for getting a method from a class.
static MethodDescription	getMethodDescription(Class declaringClass, String name, Class... parameterTypes)	Uses getMethod(Class, String, Class...) and wraps the result as a MethodDescription.
static boolean	isPrimitive(String typeName)	Determines if the provided type name is a primitive type.
static String	nextUID()	Returns a string that can be used as part of a Java identifier and is unique for this JVM.
static String	toTypeName(Class type)	Converts a type (including array and primitive types) to their type name (the way they are represented in Java source files).
static String[]	toTypeNames(Class[] types)	Converts a number of types (usually, arguments to a method or constructor) into their type names.
static Class	toWrapperType(Class type)	Gets the wrapper type for a given type (if primitive)

Methods inherited from class java.lang.Object

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

Field Detail

TO_STRING

public static final Method TO_STRING

The toString() method inherited from Object.

TO_STRING_DESCRIPTION

public static final MethodDescription TO_STRING_DESCRIPTION

The MethodDescription version of toString().

Constructor Detail

PlasticUtils

public PlasticUtils()

Method Detail

nextUID

public static String nextUID()

Returns a string that can be used as part of a Java identifier and is unique for this JVM. Currently returns a hexadecimal string and initialized by System.nanoTime() (but both those details may change in the future). Note that the returned value may start with a numeric digit, so it should be used as a suffix, not prefix of a Java identifier.

Returns:

unique id that can be used as part of a Java identifier

toTypeName

public static String toTypeName(Class type)

Converts a type (including array and primitive types) to their type name (the way they are represented in Java source files).

toTypeNames

public static String[] toTypeNames(Class[] types)

Converts a number of types (usually, arguments to a method or constructor) into their type names.

toWrapperType

public static Class toWrapperType(Class type)

Gets the wrapper type for a given type (if primitive)

Parameters:

type - type to look up

Returns:

the input type for non-primitive type, or corresponding wrapper type (Boolean.class for boolean.class, etc.)

getMethod

public static Method getMethod(Class declaringClass,
                               String name,
                               Class... parameterTypes)

Convenience for getting a method from a class.

Parameters:

declaringClass - containing class

name - name of method

parameterTypes - types of parameters

Returns:

the Method

Throws:

RuntimeException - if any error (such as method not found)

getMethodDescription

public static MethodDescription getMethodDescription(Class declaringClass,
                                                     String name,
                                                     Class... parameterTypes)

Uses getMethod(Class, String, Class...) and wraps the result as a MethodDescription.

Parameters:

declaringClass - containing class

name - name of method

parameterTypes - types of parameters

Returns:

description for method

Throws:

RuntimeException - if any error (such as method not found)

isPrimitive

public static boolean isPrimitive(String typeName)

Determines if the provided type name is a primitive type.

Parameters:

typeName - Java type name, such as "boolean" or "java.lang.String"

Returns:

true if primitive