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Java > Open Source Codes > org > objectstyle > cayenne > dba > db2 > DB2ActionBuilder


1 /* ====================================================================
2  *
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7  * of the software. All rights reserved.
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56 package org.objectstyle.cayenne.dba.db2;
57
58 import org.objectstyle.cayenne.access.jdbc.SQLTemplateAction;
59 import org.objectstyle.cayenne.dba.DbAdapter;
60 import org.objectstyle.cayenne.dba.JdbcActionBuilder;
61 import org.objectstyle.cayenne.map.EntityResolver;
62 import org.objectstyle.cayenne.query.Query;
63 import org.objectstyle.cayenne.query.SQLAction;
64 import org.objectstyle.cayenne.query.SQLTemplate;
65
66 /**
67  * @author Andrei Adamchik
68  */
69 public class DB2ActionBuilder extends JdbcActionBuilder {
70
71     public DB2ActionBuilder(DbAdapter adapter, EntityResolver resolver) {
72         super(adapter, resolver);
73     }
74
75     /**
76      * Creates a SQLTemplate handling action that removes line breaks from SQL template
77      * string to satisfy DB2 JDBC driver.
78      */
79     protected SQLAction interceptRawSQL(SQLAction action) {
80
81         // DB2 requires single line queries...
82 if (action instanceof SQLTemplateAction) {
83             ((SQLTemplateAction) action).setRemovingLineBreaks(true);
84         }
85         return action;
86     }
87
88     public SQLAction sqlAction(SQLTemplate query) {
89         return interceptRawSQL(super.sqlAction(query));
90     }
91
92     public SQLAction updateAction(Query query) {
93         // normally SQLTemplates are executed via "sqlAction", but there is a possibility
94 // that this method will be called with SQLTemplate as well.
95 return interceptRawSQL(super.updateAction(query));
96     }
97 }
98
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