org.apache.openjpa.jdbc.kernel: public class: BatchingConstraintUpdateManager

org.apache.openjpa.jdbc.kernel
public class: BatchingConstraintUpdateManager [javadoc | source]

java.lang.Object
   org.apache.openjpa.jdbc.kernel.AbstractUpdateManager
      org.apache.openjpa.jdbc.kernel.ConstraintUpdateManager
         org.apache.openjpa.jdbc.kernel.BatchingConstraintUpdateManager

All Implemented Interfaces:
UpdateManager, Configurable

Batch update manager that writes the SQL in object-level operation order. This update manager initiates a BatchPreparedStatementManagerImpl which will utilize the JDBC addBatch() and executeBatch() APIs to batch the statements for performance improvement.

This is the default plug-in class for UpdateManager to support statement batching. You can plug-in your own statement batch implementation through the following property:

< property name="openjpa.jdbc.UpdateManager"
value="org.apache.openjpa.jdbc.kernel.YourOperationOrderUpdateManager" />

author: Teresa - Kan

Fields inherited from org.apache.openjpa.jdbc.kernel.AbstractUpdateManager:
conf, dict

Method from org.apache.openjpa.jdbc.kernel.BatchingConstraintUpdateManager Summary:
flush, newPreparedStatementManager

Methods from org.apache.openjpa.jdbc.kernel.ConstraintUpdateManager:
flush, flush, flushGraph, newDepthFirstAnalysis, newPreparedStatementManager, newRowManager, orderDirty

Methods from org.apache.openjpa.jdbc.kernel.AbstractUpdateManager:
addException, delete, endConfiguration, flush, flush, insert, newPreparedStatementManager, newRowManager, populateRowManager, setConfiguration, startConfiguration, update, updateIndicators

Methods from java.lang.Object:
equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method from org.apache.openjpa.jdbc.kernel.BatchingConstraintUpdateManager Detail:
protected Collection flush(RowManager rowMgr, PreparedStatementManager psMgr, Collection exceps) { Collection rtnCol = super.flush(rowMgr, psMgr, exceps); BatchingPreparedStatementManagerImpl bPsMgr = (BatchingPreparedStatementManagerImpl) psMgr; bPsMgr.flushBatch(); return rtnCol; }
protected PreparedStatementManager newPreparedStatementManager(JDBCStore store, Connection conn) { int batchLimit = dict.getBatchLimit(); return new BatchingPreparedStatementManagerImpl(store, conn, batchLimit); }

Method from org.apache.openjpa.jdbc.kernel.BatchingConstraintUpdateManager Detail:

 protected Collection flush(RowManager rowMgr,
    PreparedStatementManager psMgr,
    Collection exceps) {
        Collection rtnCol = super.flush(rowMgr, psMgr, exceps);
        BatchingPreparedStatementManagerImpl bPsMgr =
            (BatchingPreparedStatementManagerImpl) psMgr;
        bPsMgr.flushBatch();
        return rtnCol;
}

 protected PreparedStatementManager newPreparedStatementManager(JDBCStore store,
    Connection conn) {
        int batchLimit = dict.getBatchLimit();
        return new BatchingPreparedStatementManagerImpl(store, conn,
            batchLimit);
}