org.hibernate.metamodel.source.annotations.ReflectionHelper Maven / Gradle / Ivy
/*
* Hibernate, Relational Persistence for Idiomatic Java
*
* Copyright (c) 2011, Red Hat Inc. or third-party contributors as
* indicated by the @author tags or express copyright attribution
* statements applied by the authors. All third-party contributions are
* distributed under license by Red Hat Inc.
*
* This copyrighted material is made available to anyone wishing to use, modify,
* copy, or redistribute it subject to the terms and conditions of the GNU
* Lesser General Public License, as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License
* for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this distribution; if not, write to:
* Free Software Foundation, Inc.
* 51 Franklin Street, Fifth Floor
* Boston, MA 02110-1301 USA
*/
package org.hibernate.metamodel.source.annotations;
import java.beans.Introspector;
import java.lang.reflect.Field;
import java.lang.reflect.Member;
import java.lang.reflect.Method;
import java.lang.reflect.Modifier;
/**
* Some helper methods for reflection tasks
*
* @author Hardy Ferentschik
*/
public class ReflectionHelper {
private ReflectionHelper() {
}
/**
* Process bean properties getter by applying the JavaBean naming conventions.
*
* @param member the member for which to get the property name.
*
* @return The bean method name with the "is" or "get" prefix stripped off, {@code null}
* the method name id not according to the JavaBeans standard.
*/
public static String getPropertyName(Member member) {
String name = null;
if ( member instanceof Field ) {
name = member.getName();
}
if ( member instanceof Method ) {
String methodName = member.getName();
if ( methodName.startsWith( "is" ) ) {
name = Introspector.decapitalize( methodName.substring( 2 ) );
}
else if ( methodName.startsWith( "has" ) ) {
name = Introspector.decapitalize( methodName.substring( 3 ) );
}
else if ( methodName.startsWith( "get" ) ) {
name = Introspector.decapitalize( methodName.substring( 3 ) );
}
}
return name;
}
public static boolean isProperty(Member m) {
if ( m instanceof Method ) {
Method method = (Method) m;
return !method.isSynthetic()
&& !method.isBridge()
&& !Modifier.isStatic( method.getModifiers() )
&& method.getParameterTypes().length == 0
&& ( method.getName().startsWith( "get" ) || method.getName().startsWith( "is" ) );
}
else {
return !Modifier.isTransient( m.getModifiers() ) && !m.isSynthetic();
}
}
}