/*
 * Copyright 2002-2017 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.
 * You may obtain a copy of the License at
 *
 *      https://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.
 */

package org.springframework.beans.propertyeditors;

import java.beans.PropertyEditorSupport;

import org.springframework.lang.Nullable;
import org.springframework.util.ClassUtils;
import org.springframework.util.StringUtils;

Property editor for java.lang.Class, to enable the direct population of a Class property without recourse to having to use a String class name property as bridge.

Also supports "java.lang.String[]"-style array class names, in contrast to the standard Class.forName(String) method.

Author:Juergen Hoeller, Rick Evans
See Also:
Since:13.05.2003
/** * Property editor for {@link Class java.lang.Class}, to enable the direct * population of a {@code Class} property without recourse to having to use a * String class name property as bridge. * * <p>Also supports "java.lang.String[]"-style array class names, in contrast to the * standard {@link Class#forName(String)} method. * * @author Juergen Hoeller * @author Rick Evans * @since 13.05.2003 * @see Class#forName * @see org.springframework.util.ClassUtils#forName(String, ClassLoader) */
public class ClassEditor extends PropertyEditorSupport { @Nullable private final ClassLoader classLoader;
Create a default ClassEditor, using the thread context ClassLoader.
/** * Create a default ClassEditor, using the thread context ClassLoader. */
public ClassEditor() { this(null); }
Create a default ClassEditor, using the given ClassLoader.
Params:
  • classLoader – the ClassLoader to use (or null for the thread context ClassLoader)
/** * Create a default ClassEditor, using the given ClassLoader. * @param classLoader the ClassLoader to use * (or {@code null} for the thread context ClassLoader) */
public ClassEditor(@Nullable ClassLoader classLoader) { this.classLoader = (classLoader != null ? classLoader : ClassUtils.getDefaultClassLoader()); } @Override public void setAsText(String text) throws IllegalArgumentException { if (StringUtils.hasText(text)) { setValue(ClassUtils.resolveClassName(text.trim(), this.classLoader)); } else { setValue(null); } } @Override public String getAsText() { Class<?> clazz = (Class<?>) getValue(); if (clazz != null) { return ClassUtils.getQualifiedName(clazz); } else { return ""; } } }