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1
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 ASTAnd extends AggregateConditionNode {
71
74 ASTAnd(int id) {
75 super(id);
76 }
77
78 public ASTAnd() {
79 super(ExpressionParserTreeConstants.JJTAND);
80 }
81
82 public ASTAnd(Object [] nodes) {
83 super(ExpressionParserTreeConstants.JJTAND);
84 int len = nodes.length;
85 for (int i = 0; i < len; i++) {
86 jjtAddChild((Node) nodes[i], i);
87 }
88 }
89
90 public ASTAnd(Collection nodes) {
91 super(ExpressionParserTreeConstants.JJTAND);
92 int len = nodes.size();
93 Iterator it = nodes.iterator();
94 for (int i = 0; i < len; i++) {
95 jjtAddChild((Node) it.next(), i);
96 }
97 }
98
99 protected Object evaluateNode(Object o) throws Exception {
100 int len = jjtGetNumChildren();
101 if (len == 0) {
102 return Boolean.FALSE;
103 }
104
105 for (int i = 0; i < len; i++) {
106 if (!ConversionUtil.toBoolean(evaluateChild(i, o))) {
107 return Boolean.FALSE;
108 }
109 }
110
111 return Boolean.TRUE;
112 }
113
114
117 public Expression shallowCopy() {
118 return new ASTAnd(id);
119 }
120
121 public int getType() {
122 return Expression.AND;
123 }
124
125 public void jjtClose() {
126 super.jjtClose();
127 flattenTree();
128 }
129
130 protected String getExpressionOperator(int index) {
131 return "and";
132 }
133 }
134 |
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