#919 - io.ebean package initial

src/main/java/io/ebeaninternal/server/persist/dml/UpdateHandler.java

@@ -0,0 +1,76 @@
+package io.ebeaninternal.server.persist.dml;
+
+import io.ebeaninternal.api.SpiTransaction;
+import io.ebeaninternal.api.SpiUpdatePlan;
+import io.ebeaninternal.server.core.PersistRequestBean;
+
+import javax.persistence.OptimisticLockException;
+import java.sql.PreparedStatement;
+import java.sql.SQLException;
+
+/**
+ * Update bean handler.
+ */
+public class UpdateHandler extends DmlHandler {
+
+  private final UpdateMeta meta;
+
+  private boolean emptySetClause;
+
+  public UpdateHandler(PersistRequestBean<?> persist, UpdateMeta meta) {
+    super(persist, meta.isEmptyStringAsNull());
+    this.meta = meta;
+  }
+
+  /**
+   * Generate and bind the update statement.
+   */
+  @Override
+  public void bind() throws SQLException {
+
+    SpiUpdatePlan updatePlan = meta.getUpdatePlan(persistRequest);
+
+    if (updatePlan.isEmptySetClause()) {
+      emptySetClause = true;
+      return;
+    }
+
+    sql = updatePlan.getSql();
+
+    SpiTransaction t = persistRequest.getTransaction();
+
+    PreparedStatement pstmt;
+    if (persistRequest.isBatched()) {
+      pstmt = getPstmt(t, sql, persistRequest, false);
+    } else {
+      pstmt = getPstmt(t, sql, false);
+    }
+    dataBind = bind(pstmt);
+    meta.bind(persistRequest, this, updatePlan);
+
+    setUpdateGenValues();
+
+    logSql(sql);
+  }
+
+  @Override
+  public void addBatch() throws SQLException {
+    if (!emptySetClause) {
+      super.addBatch();
+    }
+  }
+
+  /**
+   * Execute the update in non-batch.
+   */
+  @Override
+  public int execute() throws SQLException, OptimisticLockException {
+    if (!emptySetClause) {
+      int rowCount = dataBind.executeUpdate();
+      checkRowCount(rowCount);
+      return rowCount;
+    }
+    return 0;
+  }
+
+}