jsonb/src/main/java/org/eclipse/persistence/json/bind/internal/naming/UpperCamelCaseStrategy.java

/*******************************************************************************
 * Copyright (c) 2016 Oracle and/or its affiliates. All rights reserved.
 * This program and the accompanying materials are made available under the
 * terms of the Eclipse Public License v1.0 and Eclipse Distribution License v. 1.0
 * which accompanies this distribution.
 * The Eclipse Public License is available at http://www.eclipse.org/legal/epl-v10.html
 * and the Eclipse Distribution License is available at
 * http://www.eclipse.org/org/documents/edl-v10.php.
 *
 * Contributors:
 * Roman Grigoriadi
 ******************************************************************************/

package org.eclipse.persistence.json.bind.internal.naming;

import javax.json.bind.config.PropertyNamingStrategy;
import java.util.Objects;

/**
 * Transforms first letter to upper case.
 *
 * @author Roman Grigoriadi
 */
public class UpperCamelCaseStrategy implements PropertyNamingStrategy {

    @Override
    public String translateName(String propertyName) {
        Objects.requireNonNull(propertyName);
        final char first = Character.toUpperCase(propertyName.charAt(0));
        if (propertyName.length() == 1) {
            return String.valueOf(first);
        }
        return first + propertyName.substring(1, propertyName.length());
    }

}