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Java GroupIndex类代码示例

本文整理汇总了Java中com.taobao.tddl.group.config.GroupIndex类的典型用法代码示例。如果您正苦于以下问题：Java GroupIndex类的具体用法？Java GroupIndex怎么用？Java GroupIndex使用的例子？那么, 这里精选的类代码示例或许可以为您提供帮助。


GroupIndex类属于com.taobao.tddl.group.config包，在下文中一共展示了GroupIndex类的15个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Java代码示例。

示例1: executeQuery

import com.taobao.tddl.group.config.GroupIndex; //导入依赖的package包/类
@Override
public ResultSet executeQuery(String sql) throws SQLException {
    checkClosed();
    ensureResultSetIsEmpty();

    boolean gotoRead = SqlType.SELECT.equals(SqlTypeParser.getSqlType(sql)) && tGroupConnection.getAutoCommit();
    Connection conn = tGroupConnection.getBaseConnection(sql, gotoRead);

    if (conn != null) {
        sql = GroupHintParser.removeTddlGroupHint(sql);
        return executeQueryOnConnection(conn, sql);
    } else {
        // hint优先
        GroupIndex dataSourceIndex = GroupHintParser.convertHint2Index(sql);
        sql = GroupHintParser.removeTddlGroupHint(sql);
        if (dataSourceIndex == null) {
            dataSourceIndex = ThreadLocalDataSourceIndex.getIndex();
        }
        return this.tGroupDataSource.getDBSelector(gotoRead).tryExecute(executeQueryTryer,
            retryingTimes,
            sql,
            dataSourceIndex);
    }
}
开发者ID:loye168，项目名称:tddl5，代码行数:25，代码来源:TGroupStatement.java

示例2: getIndex

import com.taobao.tddl.group.config.GroupIndex; //导入依赖的package包/类
public static GroupIndex getIndex() {
    Integer indexObject = null;
    try {
        indexObject = (Integer) ThreadLocalMap.get(ThreadLocalString.DATASOURCE_INDEX);
        // 不存在索引时返回-1，这样调用者只要知道返回值是-1就会认为业务层没有设置过索引
        if (indexObject == null) {
            return new GroupIndex(DBSelector.NOT_EXIST_USER_SPECIFIED_INDEX, false);
        }

        int index = indexObject.intValue();
        // 如果业务层已设置了索引，此时索引不能为负值
        if (index < 0) {
            throw new IllegalArgumentException(msg(indexObject));
        }

        boolean failRetryFlag = ThreadLocalDataSourceIndex.getFailRetryFlag();
        return new GroupIndex(index, failRetryFlag);
    } catch (Exception e) {
        throw new IllegalArgumentException(msg(indexObject));
    }
}
开发者ID:loye168，项目名称:tddl5，代码行数:22，代码来源:ThreadLocalDataSourceIndex.java

示例3: executeQuery

import com.taobao.tddl.group.config.GroupIndex; //导入依赖的package包/类
@Override
public ResultSet executeQuery() throws SQLException {
    checkClosed();
    ensureResultSetIsEmpty();

    boolean gotoRead = SqlType.SELECT.equals(SqlTypeParser.getSqlType(sql)) && tGroupConnection.getAutoCommit();
    Connection conn = tGroupConnection.getBaseConnection(sql, gotoRead);

    if (conn != null) {
        sql = GroupHintParser.removeTddlGroupHint(sql);
        return executeQueryOnConnection(conn, sql);
    } else {
        // hint优先
        GroupIndex dataSourceIndex = GroupHintParser.convertHint2Index(sql);
        sql = GroupHintParser.removeTddlGroupHint(sql);
        if (dataSourceIndex == null) {
            dataSourceIndex = ThreadLocalDataSourceIndex.getIndex();
        }

        return tGroupDataSource.getDBSelector(gotoRead).tryExecute(executeQueryTryer,
            retryingTimes,
            sql,
            dataSourceIndex);
    }
}
开发者ID:loye168，项目名称:tddl5，代码行数:26，代码来源:TGroupPreparedStatement.java

示例4: executeQuery

import com.taobao.tddl.group.config.GroupIndex; //导入依赖的package包/类
public ResultSet executeQuery(String sql) throws SQLException {
    checkClosed();
    ensureResultSetIsEmpty();

    boolean gotoRead = SqlType.SELECT.equals(SqlTypeParser.getSqlType(sql)) && tGroupConnection.getAutoCommit();
    Connection conn = tGroupConnection.getBaseConnection(sql, gotoRead);

    if (conn != null) {
        sql = GroupHintParser.removeTddlGroupHint(sql);
        return executeQueryOnConnection(conn, sql);
    } else {
        // hint优先
        GroupIndex dataSourceIndex = GroupHintParser.convertHint2Index(sql);
        sql = GroupHintParser.removeTddlGroupHint(sql);
        if (dataSourceIndex == null) {
            dataSourceIndex = ThreadLocalDataSourceIndex.getIndex();
        }
        return this.tGroupDataSource.getDBSelector(gotoRead).tryExecute(executeQueryTryer,
            retryingTimes,
            sql,
            dataSourceIndex);
    }
}
开发者ID:beebeandwer，项目名称:TDDL，代码行数:24，代码来源:TGroupStatement.java

示例5: executeQuery

import com.taobao.tddl.group.config.GroupIndex; //导入依赖的package包/类
public ResultSet executeQuery() throws SQLException {
    checkClosed();
    ensureResultSetIsEmpty();

    boolean gotoRead = SqlType.SELECT.equals(SqlTypeParser.getSqlType(sql)) && tGroupConnection.getAutoCommit();
    Connection conn = tGroupConnection.getBaseConnection(sql, gotoRead);

    if (conn != null) {
        sql = GroupHintParser.removeTddlGroupHint(sql);
        return executeQueryOnConnection(conn, sql);
    } else {
        // hint优先
        GroupIndex dataSourceIndex = GroupHintParser.convertHint2Index(sql);
        sql = GroupHintParser.removeTddlGroupHint(sql);
        if (dataSourceIndex == null) {
            dataSourceIndex = ThreadLocalDataSourceIndex.getIndex();
        }

        return tGroupDataSource.getDBSelector(gotoRead).tryExecute(executeQueryTryer,
            retryingTimes,
            sql,
            dataSourceIndex);
    }
}
开发者ID:beebeandwer，项目名称:TDDL，代码行数:25，代码来源:TGroupPreparedStatement.java

示例6: executeUpdateInternal

import com.taobao.tddl.group.config.GroupIndex; //导入依赖的package包/类
private int executeUpdateInternal(String sql, int autoGeneratedKeys, int[] columnIndexes, String[] columnNames)
                                                                                                               throws SQLException {
    checkClosed();
    ensureResultSetIsEmpty();

    Connection conn = tGroupConnection.getBaseConnection(sql, false);

    if (conn != null) {
        sql = GroupHintParser.removeTddlGroupHint(sql);
        this.updateCount = executeUpdateOnConnection(conn, sql, autoGeneratedKeys, columnIndexes, columnNames);
        return this.updateCount;
    } else {
        GroupIndex dataSourceIndex = GroupHintParser.convertHint2Index(sql);
        sql = GroupHintParser.removeTddlGroupHint(sql);
        if (dataSourceIndex == null) {
            dataSourceIndex = ThreadLocalDataSourceIndex.getIndex();
        }
        this.updateCount = this.tGroupDataSource.getDBSelector(false).tryExecute(null,
            executeUpdateTryer,
            retryingTimes,
            sql,
            autoGeneratedKeys,
            columnIndexes,
            columnNames,
            dataSourceIndex);
        return this.updateCount;
    }
}
开发者ID:loye168，项目名称:tddl5，代码行数:29，代码来源:TGroupStatement.java

示例7: executeBatch

import com.taobao.tddl.group.config.GroupIndex; //导入依赖的package包/类
@Override
public int[] executeBatch() throws SQLException {
    try {
        checkClosed();
        ensureResultSetIsEmpty();

        if (pstArgs == null || pstArgs.isEmpty()) {
            return new int[0];
        }

        Connection conn = tGroupConnection.getBaseConnection(sql, false);

        if (conn != null) {
            sql = GroupHintParser.removeTddlGroupHint(sql);
            // 如果当前已经有连接,则不做任何重试。对于更新来说，不管有没有事务，
            // 用户总期望getConnection获得连接之后，后续的一系列操作都在这同一个库，同一个连接上执行
            return executeBatchOnConnection(conn);
        } else {
            GroupIndex dataSourceIndex = GroupHintParser.convertHint2Index(sql);
            sql = GroupHintParser.removeTddlGroupHint(sql);
            if (dataSourceIndex == null) {
                dataSourceIndex = ThreadLocalDataSourceIndex.getIndex();
            }
            return tGroupDataSource.getDBSelector(false).tryExecute(null,
                executeBatchTryer,
                retryingTimes,
                dataSourceIndex);
        }
    } finally {
        if (pstArgs != null) {
            pstArgs.clear();
        }
    }
}
开发者ID:loye168，项目名称:tddl5，代码行数:35，代码来源:TGroupPreparedStatement.java

示例8: testSingleIndex

import com.taobao.tddl.group.config.GroupIndex; //导入依赖的package包/类
@Test
public void testSingleIndex() {
    String sql = "/*+TDDL_GROUP({groupIndex:12})*/select * from tab";
    GroupIndex index = GroupHintParser.convertHint2Index(sql);
    Assert.assertEquals(index.index, 12);
    Assert.assertEquals(index.failRetry, false);
}
开发者ID:loye168，项目名称:tddl5，代码行数:8，代码来源:GroupHintParserTest.java

示例9: testIndexWithRetry

import com.taobao.tddl.group.config.GroupIndex; //导入依赖的package包/类
@Test
public void testIndexWithRetry() {
    String sql = "/*+TDDL_GROUP({groupIndex:12,failRetry:true})*/select * from tab";
    GroupIndex index = GroupHintParser.convertHint2Index(sql);
    Assert.assertEquals(index.index, 12);
    Assert.assertEquals(index.failRetry, true);
}
开发者ID:loye168，项目名称:tddl5，代码行数:8，代码来源:GroupHintParserTest.java

示例10: prepareCall

import com.taobao.tddl.group.config.GroupIndex; //导入依赖的package包/类
public TGroupCallableStatement prepareCall(String sql, int resultSetType, int resultSetConcurrency,
                                           int resultSetHoldability) throws SQLException {
    checkClosed();
    CallableStatement target;

    Connection conn = this.getBaseConnection(sql, false); // 存储过程默认走写库
    if (conn != null) {
        sql = GroupHintParser.removeTddlGroupHint(sql);
        target = getCallableStatement(conn, sql, resultSetType, resultSetConcurrency, resultSetHoldability);
    } else {
        // hint优先
        GroupIndex dataSourceIndex = GroupHintParser.convertHint2Index(sql);
        sql = GroupHintParser.removeTddlGroupHint(sql);
        if (dataSourceIndex == null) {
            dataSourceIndex = ThreadLocalDataSourceIndex.getIndex();
        }
        target = tGroupDataSource.getDBSelector(false).tryExecute(null,
            getCallableStatementTryer,
            this.tGroupDataSource.getRetryingTimes(),
            sql,
            resultSetType,
            resultSetConcurrency,
            resultSetHoldability,
            dataSourceIndex);
    }

    TGroupCallableStatement stmt = new TGroupCallableStatement(tGroupDataSource, this, target, sql);
    if (resultSetType != Integer.MIN_VALUE) {
        stmt.setResultSetType(resultSetType);
        stmt.setResultSetConcurrency(resultSetConcurrency);
    }
    if (resultSetHoldability != Integer.MIN_VALUE) {
        stmt.setResultSetHoldability(resultSetHoldability);
    }
    openedStatements.add(stmt);
    return stmt;
}
开发者ID:beebeandwer，项目名称:TDDL，代码行数:38，代码来源:TGroupConnection.java

示例11: executeBatch

import com.taobao.tddl.group.config.GroupIndex; //导入依赖的package包/类
public int[] executeBatch() throws SQLException {
    try {
        checkClosed();
        ensureResultSetIsEmpty();

        if (pstArgs == null || pstArgs.isEmpty()) {
            return new int[0];
        }

        Connection conn = tGroupConnection.getBaseConnection(sql, false);

        if (conn != null) {
            sql = GroupHintParser.removeTddlGroupHint(sql);
            // 如果当前已经有连接,则不做任何重试。对于更新来说，不管有没有事务，
            // 用户总期望getConnection获得连接之后，后续的一系列操作都在这同一个库，同一个连接上执行
            return executeBatchOnConnection(conn);
        } else {
            GroupIndex dataSourceIndex = GroupHintParser.convertHint2Index(sql);
            sql = GroupHintParser.removeTddlGroupHint(sql);
            if (dataSourceIndex == null) {
                dataSourceIndex = ThreadLocalDataSourceIndex.getIndex();
            }
            return tGroupDataSource.getDBSelector(false).tryExecute(null,
                executeBatchTryer,
                retryingTimes,
                dataSourceIndex);
        }
    } finally {
        if (pstArgs != null) {
            pstArgs.clear();
        }
    }
}
开发者ID:beebeandwer，项目名称:TDDL，代码行数:34，代码来源:TGroupPreparedStatement.java

示例12: tryOnDataSourceHolderWithIndex

import com.taobao.tddl.group.config.GroupIndex; //导入依赖的package包/类
/**
 * 在指定单库上执行，不过调用方为直接设定group index的，如果指定的数据库不可用，
 * 然后又指定了ThreadLocalString.RETRY_IF_SET_DS_INDEX 为true,那么走权重(如果有权重的话)
 * 
 * @param <T>
 * @param dsHolder
 * @param failedDataSources
 * @param tryer
 * @param times
 * @param args
 * @return
 * @throws SQLException
 */
protected <T> T tryOnDataSourceHolderWithIndex(DataSourceHolder dsHolder,
                                               Map<DataSource, SQLException> failedDataSources,
                                               DataSourceTryer<T> tryer, int times, GroupIndex index,
                                               Object... args) throws SQLException {
    List<SQLException> exceptions = new LinkedList<SQLException>();
    if (failedDataSources != null) {
        exceptions.addAll(failedDataSources.values());
    }

    if (failedDataSources != null && failedDataSources.containsKey(dsHolder.dsw)) {
        return tryer.onSQLException(exceptions, exceptionSorter, args);
    }

    try {
        if (dsHolder.isNotAvailable) {
            boolean toTry = System.currentTimeMillis() - dsHolder.lastRetryTime > retryBadDbInterval;

            if (toTry && dsHolder.lock.tryLock()) {
                try {
                    T t = tryer.tryOnDataSource(dsHolder.dsw, args); // 同一个时间只会有一个线程继续使用这个数据源。
                    dsHolder.isNotAvailable = false; // 用一个线程重试，执行成功则标记为可用，自动恢复
                    return t;
                } finally {
                    dsHolder.lastRetryTime = System.currentTimeMillis();
                    dsHolder.lock.unlock();
                }
            } else if (index.failRetry) {
                // FIXME:这里需要看下，如果在事务中，是否应该重试。
                return tryExecuteInternal(failedDataSources, tryer, times, args);
            } else {
                exceptions.add(new GroupNotAvaliableException("dsKey:" + dsHolder.dsw.getDataSourceKey()
                                                              + " not Available,toTry:" + toTry));
                return tryer.onSQLException(exceptions, exceptionSorter, args);
            }
        } else {
            return tryer.tryOnDataSource(dsHolder.dsw, args); // 有一次成功直接返回
        }
    } catch (SQLException e) {
        if (exceptionSorter.isExceptionFatal(e)) {
            dsHolder.isNotAvailable = true;
        }
        exceptions.add(e);
        return tryer.onSQLException(exceptions, exceptionSorter, args);
    }
}
开发者ID:loye168，项目名称:tddl5，代码行数:59，代码来源:AbstractDBSelector.java

示例13: getBaseConnection

import com.taobao.tddl.group.config.GroupIndex; //导入依赖的package包/类
/**
 * 获取事务中的上一个操作的链接
 */
Connection getBaseConnection(String sql, boolean isRead) throws SQLException {
    GroupIndex dataSourceIndex = DEFAULT_GROUPINDEX;
    if (sql == null) {
        // 如果当前的数据源索引与上一次的数据源索引不一样，说明上一次缓存的Connection已经无用了，需要关闭后重建。
        dataSourceIndex = ThreadLocalDataSourceIndex.getIndex();
    } else {
        dataSourceIndex = GroupHintParser.convertHint2Index(sql);
        if (dataSourceIndex == null) {
            dataSourceIndex = ThreadLocalDataSourceIndex.getIndex();
        }
    }

    // 代表出现自定义index请求
    if (dataSourceIndex.index != DBSelector.NOT_EXIST_USER_SPECIFIED_INDEX) {
        if (log.isDebugEnabled()) {
            log.debug("dataSourceIndex=" + dataSourceIndex);
        }
        // 在事务状态下，设置不同的数据源索引会导致异常。
        if (!isAutoCommit) {
            if (wBaseDsWrapper != null && !wBaseDsWrapper.isMatchDataSourceIndex(dataSourceIndex.index)) {
                throw new SQLException("Transaction in another dataSourceIndex: " + dataSourceIndex);
            }
        }

        if (isRead) {
            if (rBaseDsWrapper != null && !rBaseDsWrapper.isMatchDataSourceIndex(dataSourceIndex.index)) {
                closeReadConnection();
            }
        } else {
            if (wBaseDsWrapper != null && !wBaseDsWrapper.isMatchDataSourceIndex(dataSourceIndex.index)) {
                closeWriteConnection();
            }
        }
    }

    // 为了保证事务正确关闭，在事务状态下只会取回写连接
    if (isRead && isAutoCommit) {
        // 只要有写连接，并且对应的库可读，则复用。否则返回读连接
        return wBaseConnection != null && wBaseDsWrapper.hasReadWeight() ? wBaseConnection : rBaseConnection;
        // 先写后读，重用写连接读后，rBaseConnection仍然是null
    } else {
        if (wBaseConnection != null) {
            this.tGroupDataSource.setWriteTarget(wBaseDsWrapper);
            return wBaseConnection;
        } else if (rBaseConnection != null && rBaseDsWrapper.hasWriteWeight()) {
            // 在写连接null的情况下，如果读连接已经建立，且对应的库可写，则复用
            wBaseConnection = rBaseConnection; // wBaseConnection赋值，以确保事务能够正确提交回滚
            // 在写连接上设置事务
            if (wBaseConnection.getAutoCommit() != isAutoCommit) {
                wBaseConnection.setAutoCommit(isAutoCommit);
            }
            // wBaseDsKey = rBaseDsKey;
            wBaseDsWrapper = rBaseDsWrapper;
            this.tGroupDataSource.setWriteTarget(wBaseDsWrapper);
            return wBaseConnection;
        } else {
            return null;
        }
    }
}
开发者ID:loye168，项目名称:tddl5，代码行数:64，代码来源:TGroupConnection.java

示例14: prepareCall

import com.taobao.tddl.group.config.GroupIndex; //导入依赖的package包/类
@Override
public TGroupCallableStatement prepareCall(String sql, int resultSetType, int resultSetConcurrency,
                                           int resultSetHoldability) throws SQLException {
    checkClosed();
    CallableStatement target;

    Connection conn = this.getBaseConnection(sql, false); // 存储过程默认走写库
    if (conn != null) {
        sql = GroupHintParser.removeTddlGroupHint(sql);
        target = getCallableStatement(conn, sql, resultSetType, resultSetConcurrency, resultSetHoldability);
    } else {
        // hint优先
        GroupIndex dataSourceIndex = GroupHintParser.convertHint2Index(sql);
        sql = GroupHintParser.removeTddlGroupHint(sql);
        if (dataSourceIndex == null) {
            dataSourceIndex = ThreadLocalDataSourceIndex.getIndex();
        }
        target = tGroupDataSource.getDBSelector(false).tryExecute(null,
            getCallableStatementTryer,
            this.tGroupDataSource.getRetryingTimes(),
            sql,
            resultSetType,
            resultSetConcurrency,
            resultSetHoldability,
            dataSourceIndex);
    }

    TGroupCallableStatement stmt = new TGroupCallableStatement(tGroupDataSource,
        this,
        target,
        sql,
        this.tGroupDataSource.getAppName());
    if (resultSetType != Integer.MIN_VALUE) {
        stmt.setResultSetType(resultSetType);
        stmt.setResultSetConcurrency(resultSetConcurrency);
    }
    if (resultSetHoldability != Integer.MIN_VALUE) {
        stmt.setResultSetHoldability(resultSetHoldability);
    }
    openedStatements.add(stmt);
    return stmt;
}
开发者ID:loye168，项目名称:tddl5，代码行数:43，代码来源:TGroupConnection.java

示例15: testNoIndexHint

import com.taobao.tddl.group.config.GroupIndex; //导入依赖的package包/类
@Test
public void testNoIndexHint() {
    String sql = "select * from tab";
    GroupIndex index = GroupHintParser.convertHint2Index(sql);
    Assert.assertNull(index);
}
开发者ID:loye168，项目名称:tddl5，代码行数:7，代码来源:GroupHintParserTest.java


注：本文中的com.taobao.tddl.group.config.GroupIndex类示例由纯净天空整理自Github/MSDocs等开源代码及文档管理平台，相关代码片段筛选自各路编程大神贡献的开源项目，源码版权归原作者所有，传播和使用请参考对应项目的License；未经允许，请勿转载。