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1
10 package org.mmbase.bridge.jsp.taglib.containers;
11
12 import javax.servlet.jsp.JspTagException  ;
13
14 import org.mmbase.bridge.*;
15 import org.mmbase.bridge.util.Queries;
16 import org.mmbase.bridge.jsp.taglib.CloudReferrerTag;
17 import org.mmbase.bridge.jsp.taglib.util.Attribute;
18 import org.mmbase.storage.search.*;
19
21
28 public class QueryConstraintTag extends CloudReferrerTag implements QueryContainerReferrer {
29
30
32 protected Attribute container = Attribute.NULL;
33
34 protected Attribute operator = Attribute.NULL;
35
36 protected Attribute field = Attribute.NULL;
37 protected Attribute value = Attribute.NULL;
38 protected Attribute referid = Attribute.NULL;
39
40 protected Attribute value2 = Attribute.NULL; protected Attribute referid2 = Attribute.NULL;
43 protected Attribute inverse = Attribute.NULL;
44
45 protected Attribute field2 = Attribute.NULL;
46
47 protected Attribute caseSensitive = Attribute.NULL;
48
49 protected Attribute part = Attribute.NULL;
51 public void setContainer(String c) throws JspTagException {
52 container = getAttribute(c);
53 }
54
55 public void setField(String f) throws JspTagException {
56 field = getAttribute(f);
57 }
58
59 public void setField2(String f) throws JspTagException {
60 field2 = getAttribute(f);
61 }
62
63 public void setValue(String v) throws JspTagException {
64 value = getAttribute(v);
65 }
66
67 public void setValue2(String v) throws JspTagException {
68 value2 = getAttribute(v);
69 }
70
71 public void setReferid(String r) throws JspTagException {
72 referid = getAttribute(r);
73 }
74
75 public void setReferid2(String r) throws JspTagException {
76 referid2 = getAttribute(r);
77 }
78
79 public void setOperator(String o) throws JspTagException {
80 operator = getAttribute(o);
81 }
82
83 public void setInverse(String i) throws JspTagException {
84 inverse = getAttribute(i);
85 }
86
87 public void setCasesensitive(String c) throws JspTagException {
88 caseSensitive = getAttribute(c);
89 }
90
91 public void setPart(String p) throws JspTagException {
92 part = getAttribute(p);
93 }
94
95 public boolean getCaseSensitive() throws JspTagException {
96 String cs = caseSensitive.getString(this).toUpperCase();
97 if (cs.equals("") || cs.equals("FALSE")) {
98 return false;
99 } else if (cs.equals("TRUE")) {
100 return true;
101 } else {
102 throw new JspTagException ("Unknown value '" + cs + "' for casesensitive attribute");
103 }
104 }
105
106 private Constraint addConstraint(Query query) throws JspTagException {
107 int op = Queries.getOperator(operator.getString(this));
108
109 Object compareValue;
110 if (value != Attribute.NULL) {
111 if (referid != Attribute.NULL || field2 != Attribute.NULL) throw new JspTagException ("Can specify only one of value, referid and field2 attributes on constraint tag");
112 if (op == Queries.OPERATOR_IN) {
113 compareValue = value.getList(this);
114 } else {
115 compareValue = value.getString(this);
116 }
117 } else if (referid != Attribute.NULL) {
118 if (field2 != Attribute.NULL) throw new JspTagException ("Can specify only one of value, referid and field2 attributes on constraint tag");
119 compareValue = getObject(referid.getString(this));
120 } else if (field2 != Attribute.NULL) {
121 compareValue = query.createStepField(field2.getString(this));
122 } else {
123 if (op != Queries.OPERATOR_NULL) {
124 throw new JspTagException ("Should specify one of value, referid and field2 attributes on constraint tag (unless operator is NULL)");
125 } else {
126 compareValue = null;
127 }
128 }
129
130 Object compareValue2 = null;
131 if (op == Queries.OPERATOR_BETWEEN) {
132 if (value2 != Attribute.NULL) {
133 if (referid != Attribute.NULL) throw new JspTagException ("Can specify only one of value2, referid2 attributes on constraint tag");
134 compareValue2 = value2.getString(this);
135 } else if (referid2 != Attribute.NULL) {
136 compareValue2 = getObject(referid2.getString(this));
137 } else {
138 throw new JspTagException ("Should specify one of value2, referid2 attributes on constraint tag if operator is 'BETWEEN'");
139 }
140 }
141
142 Constraint newConstraint = Queries.createConstraint(query, field.getString(this), Queries.getOperator(operator.getString(this)),
143 compareValue, compareValue2, getCaseSensitive(), Queries.getDateTimePart(part.getString(this)));
144
145
147 QueryCompositeConstraintTag cons = (QueryCompositeConstraintTag) findParentTag(QueryCompositeConstraintTag.class, (String ) container.getValue(this), false);
151 if (cons!=null) {
152 cons.addChildConstraint(newConstraint);
153 } else {
154 newConstraint = Queries.addConstraint(query, newConstraint);
155 }
156 return newConstraint;
157 }
158
159 public int doStartTag() throws JspTagException {
160 QueryContainer c = (QueryContainer) findParentTag(QueryContainer.class, (String ) container.getValue(this));
161
162 Query query = c.getQuery();
163 Constraint cons = addConstraint(query);
164 if (inverse.getBoolean(this, false)) {
165 query.setInverse(cons, true);
166 }
167 findWriter(false); return SKIP_BODY;
170 }
171
172 }
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