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Java > Open Source Codes > freemarker > core > OrExpression


1 /*
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10  * notice, this list of conditions and the following disclaimer.
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18  * any, must include the following acknowledgement:
19  * "This product includes software developed by the
20  * Visigoth Software Society (http://www.visigoths.org/)."
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52
53 package freemarker.core;
54
55 import freemarker.template.TemplateException;
56
57 final class OrExpression extends BooleanExpression {
58
59     private final Expression left;
60     private final Expression right;
61
62     OrExpression(Expression left, Expression right) {
63         this.left = left;
64         this.right = right;
65     }
66
67     boolean isTrue(Environment env) throws TemplateException {
68         return left.isTrue(env) || right.isTrue(env);
69     }
70
71     public String JavaDoc getCanonicalForm() {
72         return left.getCanonicalForm() + " || " + right.getCanonicalForm();
73     }
74     
75     boolean isLiteral() {
76         return constantValue !=null || (left.isLiteral() && right.isLiteral());
77     }
78
79     Expression _deepClone(String JavaDoc name, Expression subst) {
80         return new OrExpression(left.deepClone(name, subst), right.deepClone(name, subst));
81     }
82 }
83
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