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Java > Open Source Codes > org > objectstyle > cayenne > dba > oracle > OracleActionBuilder


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56 package org.objectstyle.cayenne.dba.oracle;
57
58 import org.objectstyle.cayenne.access.util.BatchQueryUtils;
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.BatchQuery;
63 import org.objectstyle.cayenne.query.ProcedureQuery;
64 import org.objectstyle.cayenne.query.SQLAction;
65 import org.objectstyle.cayenne.query.SelectQuery;
66
67 /**
68  * @since 1.2
69  * @author Andrei Adamchik
70  */
71 public class OracleActionBuilder extends JdbcActionBuilder {
72
73     public OracleActionBuilder(DbAdapter adapter, EntityResolver resolver) {
74         super(adapter, resolver);
75     }
76
77     public SQLAction batchAction(BatchQuery query) {
78
79         // special handling for LOB updates
80 if (OracleAdapter.isSupportsOracleLOB()
81                 && BatchQueryUtils.updatesLOBColumns(query)) {
82
83             return new OracleLOBBatchAction(query, getAdapter());
84         }
85         else {
86
87             // optimistic locking is not supported in batches due to JDBC driver
88 // limitations
89 boolean useOptimisticLock = query.isUsingOptimisticLocking();
90             boolean runningAsBatch = !useOptimisticLock && adapter.supportsBatchUpdates();
91
92             OracleBatchAction action = new OracleBatchAction(
93                     query,
94                     getAdapter(),
95                     getEntityResolver());
96             action.setBatch(runningAsBatch);
97             return action;
98         }
99
100     }
101
102     public SQLAction procedureAction(ProcedureQuery query) {
103         return new OracleProcedureAction(query, getAdapter(), getEntityResolver());
104     }
105
106     public SQLAction objectSelectAction(SelectQuery query) {
107         return new OracleSelectAction(query, getAdapter(), getEntityResolver());
108     }
109 }
110
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