| /* |
| * Copyright (c) 2011, 2021 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: |
| // Oracle - initial API and implementation |
| // |
| package org.eclipse.persistence.jpa.jpql.tools.resolver; |
| |
| import org.eclipse.persistence.jpa.jpql.parser.AbstractExpression; |
| import org.eclipse.persistence.jpa.jpql.tools.spi.IType; |
| import org.eclipse.persistence.jpa.jpql.tools.spi.ITypeDeclaration; |
| |
| /** |
| * This {@link Resolver} retrieves the type for an enum constant. |
| * |
| * @version 2.5 |
| * @since 2.4 |
| * @author Pascal Filion |
| */ |
| public class EnumLiteralResolver extends Resolver { |
| |
| /** |
| * The fully qualified name of the enum constant. |
| */ |
| private String enumLiteral; |
| |
| /** |
| * The cached {@link IType} that was already created elsewhere. |
| */ |
| private IType type; |
| |
| /** |
| * Creates a new <code>EnumLiteralResolver</code>. |
| * |
| * @param parent The parent of this resolver, which is never <code>null</code> |
| * @param type The {@link IType} of the enum type |
| * @param enumLiteral The fully qualified name of the enum constant |
| * @exception NullPointerException If the parent is <code>null</code> |
| */ |
| public EnumLiteralResolver(Resolver parent, IType type, String enumLiteral) { |
| super(parent); |
| this.type = type; |
| this.enumLiteral = enumLiteral; |
| } |
| |
| @Override |
| protected IType buildType() { |
| return type; |
| } |
| |
| @Override |
| protected ITypeDeclaration buildTypeDeclaration() { |
| return type.getTypeDeclaration(); |
| } |
| |
| /** |
| * Returns the name of the constant constant. |
| * |
| * @return The name of the constant without the fully qualified enum type |
| */ |
| public String getConstantName() { |
| int index = enumLiteral.lastIndexOf(AbstractExpression.DOT); |
| return enumLiteral.substring(index + 1); |
| } |
| |
| @Override |
| public String toString() { |
| return enumLiteral; |
| } |
| } |