Examples with Sql org.nutz.dao.sql.Sql used on opensource projects

Example 11 with Sql

use of org.nutz.dao.sql.Sql in project nutz by nutzam.

the class OracleJdbcExpert method dropEntity.

@Override
public boolean dropEntity(Dao dao, Entity<?> en) {
    if (super.dropEntity(dao, en)) {
        if (en.getPks().isEmpty())
            return true;
        List<Sql> sqls = new ArrayList<Sql>();
        for (MappingField pk : en.getPks()) {
            if (pk.isAutoIncreasement()) {
                String sql = gSQL(DSEQ, en.getTableName(), pk.getColumnName());
                sqls.add(Sqls.create(sql));
            }
        }
        try {
            dao.execute(sqls.toArray(new Sql[sqls.size()]));
            return true;
        } catch (Exception e) {
        }
    }
    return false;
}

Example 12 with Sql

use of org.nutz.dao.sql.Sql in project nutz by nutzam.

the class SQLiteJdbcExpert method createEntity.

@Override
public boolean createEntity(Dao dao, Entity<?> en) {
    StringBuilder sb = new StringBuilder("CREATE TABLE " + en.getTableName() + "(");
    if (en.getPks().size() > 1 && en.getPkType() == PkType.ID) {
        return false;
    }
    // 创建字段
    boolean mPks = en.getPks().size() > 1;
    for (MappingField mf : en.getMappingFields()) {
        if (mf.isReadonly())
            continue;
        sb.append('\n').append(mf.getColumnNameInSql());
        // AUTOINCREMENT),但这样就无法定义多主键!!
        if (mf.isId() && en.getPkType() == PkType.ID) {
            sb.append(" INTEGER PRIMARY KEY AUTOINCREMENT,");
            continue;
        } else
            sb.append(' ').append(evalFieldType(mf));
        // 非主键的 @Name，应该加入唯一性约束
        if (mf.isName() && en.getPkType() != PkType.NAME) {
            sb.append(" UNIQUE NOT NULL");
        } else // 普通字段
        {
            if (mf.isUnsigned())
                sb.append(" UNSIGNED");
            if (mf.isNotNull())
                sb.append(" NOT NULL");
            if (mf.isPk() && !mPks) {
                // 复合主键需要另外定义
                sb.append(" PRIMARY KEY");
            }
            if (mf.hasDefaultValue())
                addDefaultValue(sb, mf);
        }
        sb.append(',');
    }
    // 创建主键
    List<MappingField> pks = en.getPks();
    if (mPks) {
        sb.append('\n');
        sb.append("constraint pk_").append(en.getTableName()).append(" PRIMARY KEY (");
        for (MappingField pk : pks) {
            sb.append(pk.getColumnNameInSql()).append(',');
        }
        sb.setCharAt(sb.length() - 1, ')');
        sb.append("\n ");
    }
    // 结束表字段设置
    sb.setCharAt(sb.length() - 1, ')');
    // 执行创建语句
    dao.execute(Sqls.create(sb.toString()));
    // 创建索引
    dao.execute(createIndexs(en).toArray(new Sql[0]));
    // 创建关联表
    createRelation(dao, en);
    return true;
}

Example 13 with Sql

use of org.nutz.dao.sql.Sql in project nutz by nutzam.

the class Sqlserver2005JdbcExpert method createEntity.

public boolean createEntity(Dao dao, Entity<?> en) {
    StringBuilder sb = new StringBuilder("CREATE TABLE " + en.getTableName() + "(");
    // 创建字段
    for (MappingField mf : en.getMappingFields()) {
        if (mf.isReadonly())
            continue;
        sb.append('\n').append(mf.getColumnNameInSql());
        sb.append(' ').append(evalFieldType(mf));
        // 非主键的 @Name，应该加入唯一性约束
        if (mf.isName() && en.getPkType() != PkType.NAME) {
            sb.append(" UNIQUE NOT NULL");
        } else // 普通字段
        {
            if (mf.isUnsigned())
                sb.append(" UNSIGNED");
            if (mf.isNotNull())
                sb.append(" NOT NULL");
            if (mf.isAutoIncreasement())
                sb.append(" IDENTITY");
            if (mf.hasDefaultValue())
                addDefaultValue(sb, mf);
        }
        sb.append(',');
    }
    // 创建主键
    List<MappingField> pks = en.getPks();
    if (!pks.isEmpty()) {
        sb.append('\n');
        sb.append("PRIMARY KEY (");
        for (MappingField pk : pks) {
            sb.append(pk.getColumnNameInSql()).append(',');
        }
        sb.setCharAt(sb.length() - 1, ')');
        sb.append("\n ");
    }
    // 结束表字段设置
    sb.setCharAt(sb.length() - 1, ')');
    // 执行创建语句
    dao.execute(Sqls.create(sb.toString()));
    // 创建索引
    dao.execute(createIndexs(en).toArray(new Sql[0]));
    // 创建关联表
    createRelation(dao, en);
    // 添加注释(表注释与字段注释)
    addComment(dao, en, COMMENT_COLUMN);
    return true;
}

Example 14 with Sql

use of org.nutz.dao.sql.Sql in project nutz by nutzam.

the class Db2JdbcExpert method createEntity.

// TODO not tested!!
public boolean createEntity(Dao dao, Entity<?> en) {
    StringBuilder sb = new StringBuilder("CREATE TABLE " + en.getTableName() + "(");
    // 创建字段
    for (MappingField mf : en.getMappingFields()) {
        if (mf.isReadonly())
            continue;
        sb.append('\n').append(mf.getColumnNameInSql());
        sb.append(' ').append(evalFieldType(mf));
        // 非主键的 @Name，应该加入唯一性约束
        if (mf.isName() && en.getPkType() != PkType.NAME) {
            sb.append(" UNIQUE NOT NULL");
        } else // 普通字段
        {
            if (mf.isNotNull() || mf.isPk())
                sb.append(" NOT NULL");
            if (mf.hasDefaultValue()) {
                addDefaultValue(sb, mf);
            }
            if (mf.isAutoIncreasement())
                sb.append(" generated by default as identity ");
            if (mf.isPk() && en.getPks().size() == 1) {
                sb.append(" primary key ");
            }
        }
        sb.append(',');
    }
    // 结束表字段设置
    sb.setCharAt(sb.length() - 1, ')');
    // 执行创建语句
    dao.execute(Sqls.create(sb.toString()));
    // 创建联合主键
    if (en.getPks().size() > 1) {
        sb = new StringBuilder();
        sb.append("ALTER TABLE ").append(en.getTableName()).append(" ADD CONSTRAINT PK_");
        sb.append(makePksName(en));
        sb.append(" PRIMARY KEY (");
        for (MappingField mf : en.getPks()) {
            sb.append(mf.getColumnNameInSql()).append(",");
        }
        sb.setCharAt(sb.length() - 1, ')');
        dao.execute(Sqls.create(sb.toString()));
    }
    // 创建关联表
    createRelation(dao, en);
    // 创建索引
    dao.execute(createIndexs(en).toArray(new Sql[0]));
    // 添加注释(表注释与字段注释)
    addComment(dao, en);
    return true;
}

Example 15 with Sql

use of org.nutz.dao.sql.Sql in project nutz by nutzam.

the class SqlTemplate method queryForInt.

/**
     * 执行一个SQL查询操作，结果为一个int形数值。
     * 
     * @param sql
     *            包含变量占位符的SQL
     * @param vars
     *            变量map，无参数时，可为null
     * @param params
     *            参数map，无参数时，可为null
     * 
     * @return int数值，当查询为null时返回0
     */
public int queryForInt(String sql, Map<String, Object> vars, Map<String, Object> params) {
    Sql sqlObj = createSqlObj(sql, params);
    sqlObj.setCallback(Sqls.callback.integer());
    execute(sqlObj, vars, params);
    return sqlObj.getInt();
}