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/*
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
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 * // Copyright (c) 1998, 2007, Oracle. All rights reserved.
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 *
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 * and Distribution License("CDDL") (collectively, the "License").  You
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 * a copy of the License at https://glassfish.dev.java.net/public/CDDL+GPL.html
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package oracle.toplink.essentials.internal.parsing;

import oracle.toplink.essentials.expressions.*;

public class EscapeNode extends LogicalOperatorNode {

    public EscapeNode() {
    }

    /**
     * INTERNAL
     * Is this an escape node
     */
    public boolean isEscape() {
        return true;// Yes it is
    }

    /**
     * INTERNAL
     * Validate the current node and calculates its type.
     */
    public void validate(ParseTreeContext context) {
        
        TypeHelper typeHelper = context.getTypeHelper();
        if (left != null) {
            left.validate(context);
            left.validateParameter(context, typeHelper.getCharType());
        }
        
        setType(getType());
    }

    public Expression generateExpression(GenerationContext context) {
        Expression whereClause = left.generateExpression(context);
        return whereClause;

    }
}