@Override
public StatementContext handle(UpdateNode statementNode, StatementContext context) {
BatchItem batchItem = context.getCurrentBatch();
batchItem.setStatementTreeNode(statementNode);
/** 解析表信息 */
this.parseTableInfo(batchItem, statementNode);
return context;
}
@Override
public StatementContext handle(InsertNode statementNode, StatementContext context) {
BatchItem batchItem = context.getCurrentBatch();
if (statementNode.getResultSetNode()
instanceof RowsResultSetNode) { // 写入多列，先不考虑性能，这里会将所有rows从新拆分，然后按照batch的方式处理
Collection<ParameterCallback<?>> callbacks = batchItem.getCallbacks();
RowsResultSetNode rowsNode = (RowsResultSetNode) statementNode.getResultSetNode();
List<RowResultSetNode> rows = rowsNode.getRows();
List<RowResultSetNode> tempRows = new ArrayList<RowResultSetNode>(rows);
context.clearBatch();
for (int i = 0; i < tempRows.size(); i++) {
rows.clear();
rows.add(tempRows.get(i));
NodeTreeToSql sqlTree = new NodeTreeToSql();
try {
String sql = sqlTree.toString(statementNode);
SQLParser parser = StatementHelper.createSQLParser();
InsertNode insertNode = (InsertNode) parser.parseStatement(sql);
batchItem = context.getCurrentBatch();
batchItem.addAll(callbacks);
batchItem.setSql(sql);
batchItem.setStatementTreeNode(insertNode);
this.parseTableInfo(batchItem, insertNode);
context.addBatch(sql);
} catch (Exception e) {
logger.error("generate sql error!", e);
}
}
} else {
/** 解析表信息 */
this.parseTableInfo(batchItem, statementNode);
batchItem.setStatementTreeNode(statementNode);
}
if (context.getBaches().size() > 1) {
this.resetCallbacks(context.getBaches());
}
return context;
}
