tablestore/src/main/java/com/alicloud/openservices/tablestore/model/RowQueryCriteria.java [77:146]:
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    public void setTableName(String tableName) {
    	Preconditions.checkArgument(
    			tableName != null && !tableName.isEmpty(), 
    			"The name of table should not be null or empty.");
    	this.tableName = tableName;
    }

    /**
     * Returns the name of the queried table.
     *
     * @return the name of the table
     */
    public String getTableName() {
        return tableName;
    }

    /**
     * Returns the list of column names to be read (read-only).
     *
     * @return The list of column names (read-only).
     */
    public Set<String> getColumnsToGet() {
        return Collections.unmodifiableSet(columnsToGet);
    }

    /**
     * Add the column to be read.
     *
     * @param columnName The name of the column to be returned.
     */
    public void addColumnsToGet(String columnName) {
        Preconditions.checkArgument(columnName != null && !columnName.isEmpty(), "Column's name should not be null or empty.");
        this.columnsToGet.add(columnName);
    }

    /**
     * Add the columns to be read.
     *
     * @param columnNames The names of the columns to be returned.
     */
    public void addColumnsToGet(String[] columnNames) {
        Preconditions.checkNotNull(columnNames, "columnNames should not be null.");
        for (int i = 0; i < columnNames.length; ++i) {
            addColumnsToGet(columnNames[i]);
        }
    }

    /**
     * Add the columns to read.
     *
     * @param columnsToGet
     */
    public void addColumnsToGet(Collection<String> columnsToGet) {
        this.columnsToGet.addAll(columnsToGet);
    }

    /**
     * Clear the list of column names that have been set for reading.
     */
    public void clearColumnsToGet() {
        this.columnsToGet.clear();
    }

    /**
     * Returns the number of columns to be read.
     *
     * @return The number of columns to be read.
     */
    public int numColumnsToGet() {
        return this.columnsToGet.size();
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tablestore/src/main/java/com/alicloud/openservices/tablestore/model/tunnel/BulkExportQueryCriteria.java [112:181]:
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    public void setTableName(String tableName) {
        Preconditions.checkArgument(
                tableName != null && !tableName.isEmpty(),
                "The name of table should not be null or empty.");
        this.tableName = tableName;
    }

    /**
     * Returns the name of the queried table.
     *
     * @return the name of the table
     */
    public String getTableName() {
        return tableName;
    }

    /**
     * Returns the list of column names to be read (read-only).
     *
     * @return The list of column names (read-only).
     */
    public Set<String> getColumnsToGet() {
        return Collections.unmodifiableSet(columnsToGet);
    }

    /**
     * Add the column to be read.
     *
     * @param columnName The name of the column to be returned.
     */
    public void addColumnsToGet(String columnName) {
        Preconditions.checkArgument(columnName != null && !columnName.isEmpty(), "Column's name should not be null or empty.");
        this.columnsToGet.add(columnName);
    }

    /**
     * Add the columns to be read.
     *
     * @param columnNames The names of the columns to be returned.
     */
    public void addColumnsToGet(String[] columnNames) {
        Preconditions.checkNotNull(columnNames, "columnNames should not be null.");
        for (int i = 0; i < columnNames.length; ++i) {
            addColumnsToGet(columnNames[i]);
        }
    }

    /**
     * Add the columns to be read.
     *
     * @param columnsToGet
     */
    public void addColumnsToGet(Collection<String> columnsToGet) {
        this.columnsToGet.addAll(columnsToGet);
    }

    /**
     * Clear the list of column names that have been set for reading.
     */
    public void clearColumnsToGet() {
        this.columnsToGet.clear();
    }

    /**
     * Returns the number of columns to be read.
     *
     * @return The number of columns to be read.
     */
    public int numColumnsToGet() {
        return this.columnsToGet.size();
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