| /* |
| * 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.expressions.Expression; |
| import org.eclipse.persistence.internal.expressions.DateConstantExpression; |
| |
| /** |
| * INTERNAL |
| * <p><b>Purpose</b>: Represent a Date, Time or TimeStamp literal |
| * <p><b>Responsibilities</b>:<ul> |
| * <li> Generate the correct expression for the temporal expression |
| * </ul> |
| */ |
| public class TemporalLiteralNode extends LiteralNode { |
| |
| public enum TemporalType {DATE, TIME, TIMESTAMP} |
| |
| private TemporalType type; |
| |
| /** |
| * Return a new StringLiteralNode |
| */ |
| public TemporalLiteralNode(TemporalType type) { |
| super(); |
| this.type = type; |
| } |
| |
| /** |
| * Return a new StringLiteralNode with the internal string set to the |
| * passed value |
| */ |
| public TemporalLiteralNode(String theString, TemporalType type) { |
| this(type); |
| setLiteral(theString); |
| } |
| |
| /** |
| * INTERNAL |
| * Generate the a new EclipseLink ConstantExpression for this node. |
| */ |
| @Override |
| public Expression generateExpression(GenerationContext context) { |
| DateConstantExpression whereClause = new DateConstantExpression(literal, context.getBaseExpression()); |
| return whereClause; |
| } |
| |
| /** |
| * INTERNAL |
| * Validate node and calculate its type. |
| */ |
| @Override |
| public void validate(ParseTreeContext context) { |
| TypeHelper typeHelper = context.getTypeHelper(); |
| if (type == TemporalType.DATE){ |
| setType(typeHelper.getSQLDateType()); |
| } else if (type == TemporalType.TIME) { |
| setType(typeHelper.getTimeType()); |
| } else if (type == TemporalType.TIMESTAMP){ |
| setType(typeHelper.getTimestampType()); |
| } |
| } |
| } |