| /* |
| * Copyright (c) 1998, 2019 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 v. 2.0 which is available at |
| * http://www.eclipse.org/legal/epl-2.0, |
| * or the Eclipse Distribution License v. 1.0 which is available at |
| * http://www.eclipse.org/org/documents/edl-v10.php. |
| * |
| * SPDX-License-Identifier: EPL-2.0 OR BSD-3-Clause |
| */ |
| |
| // Contributors: |
| // 11/05/2014-2.6 Tomas Kraus |
| // - 449818: Initial API and implementation. |
| package org.eclipse.persistence.internal.mappings.converters; |
| |
| import java.util.HashMap; |
| import java.util.Map; |
| |
| /** |
| * INTERNAL: |
| * Attribute name prefixes. |
| * @author Tomas Kraus |
| */ |
| public enum AttributeNamePrefix { |
| |
| /** INTERNAL: No attribute name prefix. */ |
| NULL(""), |
| |
| /** INTERNAL: Attribute name prefix is {@code "key"}. */ |
| KEY("key"), |
| |
| /** INTERNAL: Attribute name prefix is {@code "value"}. */ |
| VALUE("value"); |
| |
| /** INTERNAL: Attribute name prefixes enumeration length. */ |
| public static final int LENGTH = AttributeNamePrefix.values().length; |
| |
| /** Stored {@code String} values for backward {@code String} conversion. */ |
| private static final Map<String, AttributeNamePrefix> stringValuesMap |
| = new HashMap<>(LENGTH); |
| |
| // Initialize backward String conversion Map. |
| static { |
| for (AttributeNamePrefix prefix : AttributeNamePrefix.values()) { |
| stringValuesMap.put(prefix.getName(), prefix); |
| } |
| } |
| |
| /** |
| * INTERNAL: |
| * Returns an {@code AttributeNamePrefix} instance with {@code name} equal to the specified {@code String}. |
| * The {@code AttributeNamePrefix} returned represents existing value only if specified {@code String} matches |
| * any {@code String} returned by {@code getName} method. Search for {@code name} is case sensitive. Otherwise |
| * {@code null} value is returned. |
| * @param name {@code getName()} value to search for corresponding {@code AttributeNamePrefix} instance. |
| * @return {@code AttributeNamePrefix} value represented by {@code String} or {@code null} if value was |
| * not recognized. |
| */ |
| public static AttributeNamePrefix toValue(final String name) { |
| if (name != null) { |
| return (stringValuesMap.get(name)); |
| } else { |
| return null; |
| } |
| } |
| |
| /** Attribute name prefix identifier. */ |
| private final String name; |
| |
| /** |
| * Creates an instance of attribute name prefix enumeration element. |
| * @param name Attribute name prefix identifier. |
| */ |
| private AttributeNamePrefix(final String name) { |
| this.name = name; |
| } |
| |
| /** |
| * INTERNAL: |
| * Get attribute name prefix identifier. |
| * @return Attribute name prefix identifier. |
| */ |
| public String getName() { |
| return name; |
| } |
| |
| /** |
| * INTERNAL: |
| * Get instance value in human readable form. |
| * @return Instance value in human readable form. |
| */ |
| @Override |
| public String toString() { |
| return name; |
| } |
| |
| } |