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 and 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 and Description
PlasticUtils()

Method Summary

Modifier and Type	Method and 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