01: /*
02: * Licensed to the Apache Software Foundation (ASF) under one or more
03: * contributor license agreements. See the NOTICE file distributed with
04: * this work for additional information regarding copyright ownership.
05: * The ASF licenses this file to You under the Apache License, Version 2.0
06: * (the "License"); you may not use this file except in compliance with
07: * the License. You may obtain a copy of the License at
08: *
09: * http://www.apache.org/licenses/LICENSE-2.0
10: *
11: * Unless required by applicable law or agreed to in writing, software
12: * distributed under the License is distributed on an "AS IS" BASIS,
13: * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14: * See the License for the specific language governing permissions and
15: * limitations under the License.
16: *
17: * $Header:$
18: */
19: package org.apache.beehive.netui.compiler.grammar;
20:
21: import org.apache.beehive.netui.compiler.AnnotationGrammar;
22: import org.apache.beehive.netui.compiler.CompilerUtils;
23: import org.apache.beehive.netui.compiler.JpfLanguageConstants;
24: import org.apache.beehive.netui.compiler.typesystem.declaration.AnnotationInstance;
25: import org.apache.beehive.netui.compiler.typesystem.declaration.AnnotationTypeElementDeclaration;
26: import org.apache.beehive.netui.compiler.typesystem.declaration.AnnotationValue;
27: import org.apache.beehive.netui.compiler.typesystem.declaration.MemberDeclaration;
28: import org.apache.beehive.netui.compiler.typesystem.declaration.MethodDeclaration;
29:
30: public class WritableFieldType extends MemberFieldType implements
31: JpfLanguageConstants {
32: private String _attrName;
33:
34: public WritableFieldType(String requiredSuperclassName,
35: String attrName, String requiredRuntimeVersion,
36: AnnotationGrammar parentGrammar) {
37: super (requiredSuperclassName, requiredRuntimeVersion,
38: parentGrammar);
39: _attrName = attrName;
40: }
41:
42: public Object onCheck(AnnotationTypeElementDeclaration valueDecl,
43: AnnotationValue value,
44: AnnotationInstance[] parentAnnotations,
45: MemberDeclaration classMember, int annotationArrayIndex) {
46: //
47: // Look for the "readOnly" attribute on the current action method or the current class. If it's there,
48: // then this attribute cannot refer to the given field.
49: //
50: Boolean readonlyValue = null;
51:
52: if (classMember instanceof MethodDeclaration) {
53: readonlyValue = CompilerUtils.getBooleanValue(classMember,
54: ACTION_TAG_NAME, READONLY_ATTR, true);
55: }
56:
57: if (readonlyValue == null) {
58: BaseFlowControllerGrammar fcGrammar = (BaseFlowControllerGrammar) getParentGrammar();
59: readonlyValue = fcGrammar.getFlowControllerInfo()
60: .getMergedControllerAnnotation().isReadOnly();
61: }
62:
63: if (readonlyValue != null && readonlyValue.booleanValue()) {
64: addError(value, "error.readonly-writable-field-value",
65: _attrName);
66: }
67:
68: return super.onCheck(valueDecl, value, parentAnnotations,
69: classMember, annotationArrayIndex);
70: }
71: }
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