org.apache.tapestry5.plastic
Class PlasticUtils

java.lang.Object
  org.apache.tapestry5.plastic.PlasticUtils

public class PlasticUtils
extends java.lang.Object

Utilities for user code making use of Plastic.

Field Summary

static java.lang.reflect.Method	TO_STRING The toString() method inherited from Object.
static MethodDescription	TO_STRING_DESCRIPTION The MethodDescription version of toString().

Constructor Summary

PlasticUtils()

Method Summary

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

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

toWrapperType

public static java.lang.Class toWrapperType(java.lang.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 java.lang.reflect.Method getMethod(java.lang.Class declaringClass,
                                                 java.lang.String name,
                                                 java.lang.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:

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

getMethodDescription

public static MethodDescription getMethodDescription(java.lang.Class declaringClass,
                                                     java.lang.String name,
                                                     java.lang.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:

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

isPrimitive

public static boolean isPrimitive(java.lang.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