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56 package org.objectstyle.cayenne.exp.parser;
57
58 import java.util.Collection  ;
59 import java.util.Iterator ;
60
61 import org.objectstyle.cayenne.exp.Expression;
62 import org.objectstyle.cayenne.util.ConversionUtil;
63
64
70 public class ASTOr extends AggregateConditionNode {
71 ASTOr(int id) {
72 super(id);
73 }
74
75 public ASTOr() {
76 super(ExpressionParserTreeConstants.JJTOR);
77 }
78
79 public ASTOr(Object [] nodes) {
80 super(ExpressionParserTreeConstants.JJTOR);
81 int len = nodes.length;
82 for (int i = 0; i < len; i++) {
83 jjtAddChild((Node) nodes[i], i);
84 }
85 }
86
87 public ASTOr(Collection nodes) {
88 super(ExpressionParserTreeConstants.JJTOR);
89 int len = nodes.size();
90 Iterator it = nodes.iterator();
91 for (int i = 0; i < len; i++) {
92 jjtAddChild((Node) it.next(), i);
93 }
94 }
95
96 protected Object evaluateNode(Object o) throws Exception {
97 int len = jjtGetNumChildren();
98 if (len == 0) {
99 return Boolean.FALSE;
100 }
101
102 for (int i = 0; i < len; i++) {
103 if (ConversionUtil.toBoolean(evaluateChild(i, o))) {
104 return Boolean.TRUE;
105 }
106 }
107
108 return Boolean.FALSE;
109 }
110
111
114 public Expression shallowCopy() {
115 return new ASTOr(id);
116 }
117
118 protected String getExpressionOperator(int index) {
119 return "or";
120 }
121
122 public int getType() {
123 return Expression.OR;
124 }
125
126 public void jjtClose() {
127 super.jjtClose();
128 flattenTree();
129 }
130 }
131 |
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