| /* |
| * Copyright (c) 1998, 2020 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 from Oracle TopLink |
| package org.eclipse.persistence.internal.jpa.parsing; |
| |
| import org.eclipse.persistence.exceptions.JPQLException; |
| |
| /** |
| * INTERNAL |
| * <p><b>Purpose</b>: Represent a range identification variable |
| * declaration as part of the FROM clause FROM Order o. |
| * <p><b>Responsibilities</b>:<ul> |
| * <li> Manage the abstract schema name range variable declaration. |
| * </ul> |
| */ |
| public class RangeDeclNode extends IdentificationVariableDeclNode { |
| |
| private String abstractSchemaName; |
| |
| /** */ |
| public String getAbstractSchemaName() { |
| return abstractSchemaName; |
| } |
| |
| /** */ |
| public void setAbstractSchemaName(String name) { |
| abstractSchemaName = name; |
| } |
| |
| /** |
| * INTERNAL |
| * Check for an unqualified field access. If abstractSchemaName does not |
| * define a valid abstract schema name treat it as unqualified field |
| * access. Then method qualifies the field access and use it as the path |
| * expression of a new join variable declaration node returned by the |
| * method. |
| */ |
| @Override |
| public Node qualifyAttributeAccess(ParseTreeContext context) { |
| TypeHelper typeHelper = context.getTypeHelper(); |
| String name = abstractSchemaName; |
| if (typeHelper.resolveSchema(name) == null) { |
| // not a known abstract schema name => make it a join node with a |
| // qualified attribute access as path expression |
| context.unregisterVariable(getCanonicalVariableName()); |
| NodeFactory factory = context.getNodeFactory(); |
| Node path = (Node)factory.newQualifiedAttribute( |
| getLine(), getColumn(), context.getBaseVariable(), name); |
| return (Node)factory.newVariableDecl( |
| getLine(), getColumn(), path, getVariableName()); |
| } |
| return this; |
| } |
| |
| /** |
| * INTERNAL |
| * Validate node and calculate its type. |
| */ |
| @Override |
| public void validate(ParseTreeContext context) { |
| super.validate(context); |
| TypeHelper typeHelper = context.getTypeHelper(); |
| Object type = typeHelper.resolveSchema(abstractSchemaName); |
| if (type == null) { |
| throw JPQLException.entityTypeNotFound2( |
| context.getQueryInfo(), getLine(), getColumn(), abstractSchemaName); |
| } |
| setType(type); |
| } |
| } |