Java ISelectable.isSameName方法代码示例

import com.taobao.tddl.optimizer.core.expression.ISelectable; //导入方法依赖的package包/类
@Override
public void build() {
    super.build();
    if (this.getDuplicateUpdateColumns() != null) {
        for (ISelectable s : this.getDuplicateUpdateColumns()) {
            ISelectable res = null;
            for (Object obj : table.getColumnsReferedForParent()) {
                ISelectable querySelected = (ISelectable) obj;
                if (s.isSameName(querySelected)) { // 尝试查找对应的字段信息
                    res = querySelected;
                    break;
                }
            }

            if (res == null) {
                throw new IllegalArgumentException("column: " + s.getColumnName() + " is not existed in "
                                                   + table.getName());
            }

            s.setTableName(res.getTableName());
            s.setDataType(res.getDataType());
            s.setAutoIncrement(res.isAutoIncrement());
        }

        convertTypeToSatifyColumnMeta(this.getDuplicateUpdateColumns(), this.getDuplicateUpdateValues());
    }
}
 

import com.taobao.tddl.optimizer.core.expression.ISelectable; //导入方法依赖的package包/类
/**
 * 从select列表中查找字段
 */
protected ISelectable findColumnFromOtherNode(ISelectable c, QueryTreeNode other) {
    if (c == null) {
        return c;
    }

    if (c instanceof IBooleanFilter && ((IBooleanFilter) c).getOperation().equals(OPERATION.CONSTANT)) {
        return c;
    }

    ISelectable res = null;
    for (ISelectable selected : other.getColumnsSelected()) {
        boolean isThis = false;
        if (c.getTableName() != null) {
            boolean isSameName = c.getTableName().equals(other.getAlias())
                                 || c.getTableName().equals(selected.getTableName());
            if (other.isSubQuery() && other.getSubAlias() != null) {
                isSameName |= c.getTableName().equals(other.getSubAlias());
            }
            if (!isSameName) {
                continue;
            }
        }

        if (IColumn.STAR.equals(c.getColumnName())) {
            return c;
        }

        // 若列别名存在，只比较别名
        isThis = c.isSameName(selected);

        if (isThis) {
            if (res != null) {
                // 说明出现两个ID，需要明确指定TABLE
                throw new IllegalArgumentException("Column: '" + c.getFullName() + "' is ambiguous by exist ["
                                                   + selected.getFullName() + "," + res.getFullName() + "]");
            }
            res = selected;
        }
    }

    return res;
}
 

import com.taobao.tddl.optimizer.core.expression.ISelectable; //导入方法依赖的package包/类
@Override
public void build() {
    if (this.table != null) {
        table.build();
    }

    if ((this.getColumns() == null || this.getColumns().isEmpty())
        && (this.getValues() == null || this.getValues().isEmpty())) {
        return;
    }

    if (columns == null || columns.isEmpty()) { // 如果字段为空，默认为所有的字段数据的,比如insert所有字段
        columns = OptimizerUtils.columnMetaListToIColumnList(this.getTableMeta().getAllColumns(),
            this.getTableMeta().getTableName());
    }

    if (columns.size() != values.size()) {
        if (!columns.isEmpty()) {
            throw new IllegalArgumentException("The size of the columns and values is not matched."
                                               + " columns' size is " + columns.size() + ". values' size is "
                                               + values.size());
        }

    }

    for (ISelectable s : this.getColumns()) {
        ISelectable res = null;
        for (Object obj : table.getColumnsReferedForParent()) {
            ISelectable querySelected = (ISelectable) obj;
            if (s.isSameName(querySelected)) { // 尝试查找对应的字段信息
                res = querySelected;
                break;
            }
        }

        if (res == null) {
            throw new IllegalArgumentException("column: " + s.getColumnName() + " is not existed in either "
                                               + table.getName() + " or select clause");
        }
    }

    convertTypeToSatifyColumnMeta(this.getColumns(), this.getValues());
}
 

import com.taobao.tddl.optimizer.core.expression.ISelectable; //导入方法依赖的package包/类
/**
 * 从select列表中查找字段
 */
public ISelectable findColumnFromOtherNode(ISelectable c, QueryTreeNode other) {
    if (c == null) {
        return c;
    }

    if (c instanceof IBooleanFilter && ((IBooleanFilter) c).getOperation().equals(OPERATION.CONSTANT)) {
        return c;
    }

    ISelectable res = null;
    for (ISelectable selected : other.getColumnsSelected()) {
        boolean isThis = false;
        if (c.getTableName() != null) {
            boolean isSameName = c.getTableName().equals(other.getAlias())
                                 || c.getTableName().equals(selected.getTableName());
            if (other.isSubQuery() && other.getSubAlias() != null) {
                isSameName |= c.getTableName().equals(other.getSubAlias());
            }
            if (!isSameName) {
                continue;
            }
        }

        if (IColumn.STAR.equals(c.getColumnName())) {
            return c;
        }

        // 若列别名存在，只比较别名
        isThis = c.isSameName(selected);

        if (isThis) {
            if (res != null) {
                // 说明出现两个ID，需要明确指定TABLE
                throw new IllegalArgumentException("Column: '" + c.getFullName() + "' is ambiguous by exist ["
                                                   + selected.getFullName() + "," + res.getFullName() + "]");
            }
            res = selected;
        }
    }

    return res;
}