| /* |
| * 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.*; |
| |
| /** |
| * INTERNAL |
| * <p><b>Purpose</b>: Represent a TRIM |
| * <p><b>Responsibilities</b>:<ul> |
| * <li> Generate the correct expression for TRIM |
| * </ul> |
| */ |
| public class TrimNode extends StringFunctionNode { |
| |
| private Node trimChar; |
| private boolean leading; |
| private boolean trailing; |
| private boolean both; |
| |
| /** |
| * TrimNode constructor. |
| */ |
| public TrimNode() { |
| super(); |
| } |
| |
| /** |
| * INTERNAL |
| * Validate node and calculate its type. |
| */ |
| @Override |
| public void validate(ParseTreeContext context) { |
| TypeHelper typeHelper = context.getTypeHelper(); |
| if (left != null) { |
| left.validate(context); |
| left.validateParameter(context, typeHelper.getStringType()); |
| } |
| if (trimChar != null) { |
| trimChar.validate(context); |
| trimChar.validateParameter(context, typeHelper.getCharType()); |
| } |
| setType(typeHelper.getStringType()); |
| } |
| |
| /** |
| * INTERNAL |
| * Generate the TopLink expression for this node |
| */ |
| @Override |
| public Expression generateExpression(GenerationContext context) { |
| Expression whereClause = getLeft().generateExpression(context); |
| if (leading) { |
| // use leftTrim |
| if (trimChar != null) { |
| Expression trimCharExpr = trimChar.generateExpression(context); |
| whereClause = whereClause.leftTrim(trimCharExpr); |
| } else { |
| whereClause = whereClause.leftTrim(); |
| } |
| } else if (trailing) { |
| if (trimChar != null) { |
| Expression trimCharExpr = trimChar.generateExpression(context); |
| whereClause = whereClause.rightTrim(trimCharExpr); |
| } else { |
| whereClause = whereClause.rightTrim(); |
| } |
| } else { |
| if (trimChar != null) { |
| Expression trimCharExpr = trimChar.generateExpression(context); |
| whereClause = whereClause.leftTrim(trimCharExpr).rightTrim(trimCharExpr); |
| } else { |
| whereClause = whereClause.leftTrim().rightTrim(); |
| } |
| } |
| return whereClause; |
| } |
| |
| /** */ |
| public void setTrimChar(Node trimChar) { |
| this.trimChar = trimChar; |
| } |
| |
| /** */ |
| public boolean isLeading() { |
| return leading; |
| } |
| |
| /** */ |
| public void setLeading(boolean newLeading) { |
| this.leading = newLeading; |
| } |
| |
| /** */ |
| public boolean isTrailing() { |
| return trailing; |
| } |
| |
| /** */ |
| public void setTrailing(boolean newTrailing) { |
| this.trailing = newTrailing; |
| } |
| |
| /** */ |
| public boolean isBoth() { |
| return both; |
| } |
| |
| /** */ |
| public void setBoth(boolean newBoth) { |
| this.both = newBoth; |
| } |
| |
| } |