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Java > Open Source Codes > com > jcorporate > expresso > services > test > SchemaDeleter


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64 package com.jcorporate.expresso.services.test;
65
66 import com.jcorporate.expresso.core.db.DBException;
67 import com.jcorporate.expresso.core.dbobj.Schema;
68 import com.jcorporate.expresso.core.utility.DBTool;
69 import com.jcorporate.expresso.services.html.HtmlException;
70
71 import java.util.Vector JavaDoc;
72
73
74 /**
75  * Class that uninstalls/deletes schemas
76  *
77  * @author Michael Rimov
78  * @version $Revision: 1.12 $ $Date: 2004/11/17 20:48:22 $
79  */
80 public class SchemaDeleter {
81     /**
82      * List of Schemas to run through the delete process.
83      */
84     private static Vector JavaDoc theSchemas = null;
85
86     /**
87      * The data context.
88      */
89     static String JavaDoc dataContext = null;
90
91     /**
92      * Creates a new SchemaDeleter object.
93      */
94     public SchemaDeleter() {
95     }
96
97     /**
98      * Set the data context.
99      *
100      * @param newValue the data context value.
101      */
102     public void setDataContext(final String JavaDoc newValue) {
103         synchronized (SchemaDeleter.class) {
104             dataContext = newValue;
105         }
106     }
107
108     /**
109      * Retrieve the currently set data context.
110      *
111      * @return the data context.
112      */
113     public String JavaDoc getDataContext() {
114         synchronized (SchemaDeleter.class) {
115             return dataContext;
116         }
117     }
118
119     /**
120      * Set the schemas to delete
121      *
122      * @param v a Vector of Schema objects
123      */
124     public static void setSchemas(Vector JavaDoc v) {
125         synchronized (SchemaDeleter.class) {
126             theSchemas = v;
127         }
128     }
129
130     /**
131      * Deletes a schema from the given data context.
132      *
133      * @param dbName the data context.
134      * @param oneSchema the schema to delete.
135      */
136     public static void deleteSchema(final String JavaDoc dbName, final Schema oneSchema) {
137         Vector JavaDoc v = new Vector JavaDoc();
138         v.add(oneSchema);
139
140         try {
141             DBTool.deleteSchema(null, dbName, v);
142         } catch (DBException e) {
143         } catch (HtmlException he) {
144         }
145     }
146
147     /**
148      * Removes the schemas listed in theSchema's list.
149      *
150      * @param dbName db to delete the schema from. If the parameter is null,
151      * then the schema will be removed from the default db.
152      */
153     public static void deleteSchemas(final String JavaDoc dbName) {
154         synchronized (SchemaDeleter.class) {
155             if (theSchemas != null) {
156                 // Start with a fresh db - wipe out all schemas.
157 //
158 try {
159                     DBTool.deleteSchema(null, dbName, theSchemas);
160                 } catch (DBException e) {
161                     //Ignore DBExceptions
162 } catch (HtmlException he) {
163                     //Ignore HTMLExceptions
164 }
165             }
166         }
167     }
168 }
169
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