Method to return the type category for a type. - Java Reflection

Java examples for Reflection:Method Return

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Description

Method to return the type category for a type.

Demo Code

/**********************************************************************
Copyright (c) 2010 Andy Jefferson and others. All rights reserved.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at/*from w  w  w.ja  va 2  s .c om*/

    http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.

Contributors:
   ...
 **********************************************************************/
import java.util.ArrayList;
import java.util.HashSet;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import java.util.Set;
import javax.annotation.processing.ProcessingEnvironment;
import javax.lang.model.element.AnnotationMirror;
import javax.lang.model.element.AnnotationValue;
import javax.lang.model.element.Element;
import javax.lang.model.element.ElementKind;
import javax.lang.model.element.ExecutableElement;
import javax.lang.model.element.TypeElement;
import javax.lang.model.type.ArrayType;
import javax.lang.model.type.PrimitiveType;
import javax.lang.model.type.TypeKind;
import javax.lang.model.type.TypeMirror;

public class Main{
    public static void main(String[] argv) throws Exception{
        String typeName = "java2s.com";
        System.out.println(getTypeCategoryForTypeMirror(typeName));
    }
    private static Set<String> LIST_CLASSNAMES = null;
    private static Set<String> SET_CLASSNAMES = null;
    private static Set<String> MAP_CLASSNAMES = null;
    private static Set<String> COLLECTION_CLASSNAMES = null;
    /**
     * Method to return the type category for a type.
     * @param typeName The type name (e.g java.lang.String, java.util.Collection)
     * @return The type category
     */
    public static TypeCategory getTypeCategoryForTypeMirror(String typeName) {
        if (COLLECTION_CLASSNAMES.contains(typeName)) {
            return TypeCategory.COLLECTION;
        } else if (SET_CLASSNAMES.contains(typeName)) {
            return TypeCategory.SET;
        } else if (LIST_CLASSNAMES.contains(typeName)) {
            return TypeCategory.LIST;
        } else if (MAP_CLASSNAMES.contains(typeName)) {
            return TypeCategory.MAP;
        }
        return TypeCategory.ATTRIBUTE;
    }
}

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