程序包 javax.sql

接口 RowSetMetaData

所有超级接口:

ResultSetMetaData, Wrapper

public interface RowSetMetaData
extends ResultSetMetaData

An object that contains information about the columns in a RowSet object. This interface is an extension of the ResultSetMetaData interface with methods for setting the values in a RowSetMetaData object. When a RowSetReader object reads data into a RowSet object, it creates a RowSetMetaData object and initializes it using the methods in the RowSetMetaData interface. Then the reader passes the RowSetMetaData object to the rowset.

The methods in this interface are invoked internally when an application calls the method RowSet.execute; an application programmer would not use them directly.

从以下版本开始:

1.4

字段概要

从接口继承的字段 java.sql.ResultSetMetaData

columnNoNulls, columnNullable, columnNullableUnknown

方法概要

限定符和类型	方法	说明
void	setAutoIncrement(int columnIndex, boolean property)	Sets whether the designated column is automatically numbered, The default is for a RowSet object's columns not to be automatically numbered.
void	setCaseSensitive(int columnIndex, boolean property)	Sets whether the designated column is case sensitive.
void	setCatalogName(int columnIndex, String catalogName)	Sets the designated column's table's catalog name, if any, to the given String.
void	setColumnCount(int columnCount)	Sets the number of columns in the RowSet object to the given number.
void	setColumnDisplaySize(int columnIndex, int size)	Sets the designated column's normal maximum width in chars to the given int.
void	setColumnLabel(int columnIndex, String label)	Sets the suggested column title for use in printouts and displays, if any, to the given String.
void	setColumnName(int columnIndex, String columnName)	Sets the name of the designated column to the given String.
void	setColumnType(int columnIndex, int SQLType)	Sets the designated column's SQL type to the one given.
void	setColumnTypeName(int columnIndex, String typeName)	Sets the designated column's type name that is specific to the data source, if any, to the given String.
void	setCurrency(int columnIndex, boolean property)	Sets whether the designated column is a cash value.
void	setNullable(int columnIndex, int property)	Sets whether the designated column's value can be set to NULL.
void	setPrecision(int columnIndex, int precision)	Sets the designated column's number of decimal digits to the given int.
void	setScale(int columnIndex, int scale)	Sets the designated column's number of digits to the right of the decimal point to the given int.
void	setSchemaName(int columnIndex, String schemaName)	Sets the name of the designated column's table's schema, if any, to the given String.
void	setSearchable(int columnIndex, boolean property)	Sets whether the designated column can be used in a where clause.
void	setSigned(int columnIndex, boolean property)	Sets whether the designated column is a signed number.
void	setTableName(int columnIndex, String tableName)	Sets the designated column's table name, if any, to the given String.

从接口继承的方法 java.sql.ResultSetMetaData

getCatalogName, getColumnClassName, getColumnCount, getColumnDisplaySize, getColumnLabel, getColumnName, getColumnType, getColumnTypeName, getPrecision, getScale, getSchemaName, getTableName, isAutoIncrement, isCaseSensitive, isCurrency, isDefinitelyWritable, isNullable, isReadOnly, isSearchable, isSigned, isWritable

从接口继承的方法 java.sql.Wrapper

isWrapperFor, unwrap

方法详细资料

setColumnCount

void setColumnCount(int columnCount)
             throws SQLException

Sets the number of columns in the RowSet object to the given number.

参数:

columnCount - the number of columns in the RowSet object

抛出:

SQLException - if a database access error occurs

setAutoIncrement

void setAutoIncrement(int columnIndex,
                      boolean property)
               throws SQLException

Sets whether the designated column is automatically numbered, The default is for a RowSet object's columns not to be automatically numbered.

参数:

columnIndex - the first column is 1, the second is 2, ...

property - true if the column is automatically numbered; false if it is not

抛出:

SQLException - if a database access error occurs

setCaseSensitive

void setCaseSensitive(int columnIndex,
                      boolean property)
               throws SQLException

Sets whether the designated column is case sensitive. The default is false.

参数:

columnIndex - the first column is 1, the second is 2, ...

property - true if the column is case sensitive; false if it is not

抛出:

SQLException - if a database access error occurs

setSearchable

void setSearchable(int columnIndex,
                   boolean property)
            throws SQLException

Sets whether the designated column can be used in a where clause. The default is false.

参数:

columnIndex - the first column is 1, the second is 2, ...

property - true if the column can be used in a WHERE clause; false if it cannot

抛出:

SQLException - if a database access error occurs

setCurrency

void setCurrency(int columnIndex,
                 boolean property)
          throws SQLException

Sets whether the designated column is a cash value. The default is false.

参数:

columnIndex - the first column is 1, the second is 2, ...

property - true if the column is a cash value; false if it is not

抛出:

SQLException - if a database access error occurs

setNullable

void setNullable(int columnIndex,
                 int property)
          throws SQLException

Sets whether the designated column's value can be set to NULL. The default is ResultSetMetaData.columnNullableUnknown

参数:

columnIndex - the first column is 1, the second is 2, ...

property - one of the following constants: ResultSetMetaData.columnNoNulls, ResultSetMetaData.columnNullable, or ResultSetMetaData.columnNullableUnknown

抛出:

SQLException - if a database access error occurs

setSigned

void setSigned(int columnIndex,
               boolean property)
        throws SQLException

Sets whether the designated column is a signed number. The default is false.

参数:

columnIndex - the first column is 1, the second is 2, ...

property - true if the column is a signed number; false if it is not

抛出:

SQLException - if a database access error occurs

setColumnDisplaySize

void setColumnDisplaySize(int columnIndex,
                          int size)
                   throws SQLException

Sets the designated column's normal maximum width in chars to the given int.

参数:

columnIndex - the first column is 1, the second is 2, ...

size - the normal maximum number of characters for the designated column

抛出:

SQLException - if a database access error occurs

setColumnLabel

void setColumnLabel(int columnIndex,
                    String label)
             throws SQLException

Sets the suggested column title for use in printouts and displays, if any, to the given String.

参数:

columnIndex - the first column is 1, the second is 2, ...

label - the column title

抛出:

SQLException - if a database access error occurs

setColumnName

void setColumnName(int columnIndex,
                   String columnName)
            throws SQLException

Sets the name of the designated column to the given String.

参数:

columnIndex - the first column is 1, the second is 2, ...

columnName - the designated column's name

抛出:

SQLException - if a database access error occurs

setSchemaName

void setSchemaName(int columnIndex,
                   String schemaName)
            throws SQLException

Sets the name of the designated column's table's schema, if any, to the given String.

参数:

columnIndex - the first column is 1, the second is 2, ...

schemaName - the schema name

抛出:

SQLException - if a database access error occurs

setPrecision

void setPrecision(int columnIndex,
                  int precision)
           throws SQLException

Sets the designated column's number of decimal digits to the given int.

参数:

columnIndex - the first column is 1, the second is 2, ...

precision - the total number of decimal digits

抛出:

SQLException - if a database access error occurs

setScale

void setScale(int columnIndex,
              int scale)
       throws SQLException

Sets the designated column's number of digits to the right of the decimal point to the given int.

参数:

columnIndex - the first column is 1, the second is 2, ...

scale - the number of digits to right of decimal point

抛出:

SQLException - if a database access error occurs

setTableName

void setTableName(int columnIndex,
                  String tableName)
           throws SQLException

Sets the designated column's table name, if any, to the given String.

参数:

columnIndex - the first column is 1, the second is 2, ...

tableName - the column's table name

抛出:

SQLException - if a database access error occurs

setCatalogName

void setCatalogName(int columnIndex,
                    String catalogName)
             throws SQLException

Sets the designated column's table's catalog name, if any, to the given String.

参数:

columnIndex - the first column is 1, the second is 2, ...

catalogName - the column's catalog name

抛出:

SQLException - if a database access error occurs

setColumnType

void setColumnType(int columnIndex,
                   int SQLType)
            throws SQLException

Sets the designated column's SQL type to the one given.

参数:

columnIndex - the first column is 1, the second is 2, ...

SQLType - the column's SQL type

抛出:

SQLException - if a database access error occurs

另请参阅:

Types

setColumnTypeName

void setColumnTypeName(int columnIndex,
                       String typeName)
                throws SQLException

Sets the designated column's type name that is specific to the data source, if any, to the given String.

参数:

columnIndex - the first column is 1, the second is 2, ...

typeName - data source specific type name.

抛出:

SQLException - if a database access error occurs