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revised expression parser API design

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This commit is contained in:
Juergen Hoeller
2009-02-12 23:03:58 +00:00
parent 2bdb62f4c2
commit 08dd18df58
147 changed files with 3053 additions and 4402 deletions
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23
org.springframework.core/src/main/java/org/springframework/util/ClassUtils.java
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@@ -1,5 +1,5 @@
/*
* Copyright 2002-2008 the original author or authors.
* Copyright 2002-2009 the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
@@ -73,6 +73,12 @@ public abstract class ClassUtils {
*/
private static final Map<Class, Class> primitiveWrapperTypeMap = new HashMap<Class, Class>(8);
/**
* Map with primitive type as key and corresponding wrapper
* type as value, for example: int.class -> Integer.class.
*/
private static final Map<Class, Class> primitiveTypeToWrapperMap = new HashMap<Class, Class>(8);
/**
* Map with primitive type name as key and corresponding primitive
* type as value, for example: "int" -> "int.class".
@@ -90,6 +96,10 @@ public abstract class ClassUtils {
primitiveWrapperTypeMap.put(Long.class, long.class);
primitiveWrapperTypeMap.put(Short.class, short.class);
for (Map.Entry<Class, Class> entry : primitiveWrapperTypeMap.entrySet()) {
primitiveTypeToWrapperMap.put(entry.getValue(), entry.getKey());
}
Set<Class> primitiveTypes = new HashSet<Class>(16);
primitiveTypes.addAll(primitiveWrapperTypeMap.values());
primitiveTypes.addAll(Arrays.asList(
@@ -701,6 +711,17 @@ public abstract class ClassUtils {
return (clazz.isArray() && isPrimitiveWrapper(clazz.getComponentType()));
}
/**
* Resolve the given class if it is a primitive class,
* returning the corresponding primitive wrapper type instead.
* @param clazz the class to check
* @return the original class, or a primitive wrapper for the original primitive type
*/
public static Class resolvePrimitiveIfNecessary(Class clazz) {
Assert.notNull(clazz, "Class must not be null");
return (clazz.isPrimitive() ? primitiveTypeToWrapperMap.get(clazz) : clazz);
}
/**
* Check if the right-hand side type may be assigned to the left-hand side
* type, assuming setting by reflection. Considers primitive wrapper