RowSetMetaData (Java 2 Platform SE 5.0) - JDK 5 Documentation v1.5.0, Java 2 SDK 英文文档

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Standard Ed. 5.0

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javax.sql
Interface RowSetMetaData

All Superinterfaces:: ResultSetMetaData

All Known Implementing Classes:: RowSetMetaDataImpl

public interface RowSetMetaData
extends ResultSetMetaData
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.

Since:: 1.4

Field Summary

Fields inherited from interface java.sql.ResultSetMetaData

columnNoNulls, columnNullable, columnNullableUnknown

Method Summary

void setAutoIncrement(int columnIndex, boolean property)
          Sets whether the designated column is automatically numbered, and thus read-only.

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.

Methods inherited from interface java.sql.ResultSetMetaData

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

Fields inherited from interface java.sql.ResultSetMetaData
`columnNoNulls, columnNullable, columnNullableUnknown`

Method Summary
`void`	`setAutoIncrement(int columnIndex, boolean property)` Sets whether the designated column is automatically numbered, and thus read-only.
`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`.

Methods inherited from interface java.sql.ResultSetMetaData
`getCatalogName, getColumnClassName, getColumnCount, getColumnDisplaySize, getColumnLabel, getColumnName, getColumnType, getColumnTypeName, getPrecision, getScale, getSchemaName, getTableName, isAutoIncrement, isCaseSensitive, isCurrency, isDefinitelyWritable, isNullable, isReadOnly, isSearchable, isSigned, isWritable`

Method Detail

setColumnCount

void setColumnCount(int columnCount)
                    throws SQLException

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

Parameters:: columnCount - the number of columns in the RowSet object
Throws:: SQLException - if a database access error occurs

setAutoIncrement

void setAutoIncrement(int columnIndex,
                      boolean property)
                      throws SQLException

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

Parameters:: columnIndex - the first column is 1, the second is 2, ...; property - true if the column is automatically numbered; false if it is not
Throws:: 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.

Parameters:: columnIndex - the first column is 1, the second is 2, ...; property - true if the column is case sensitive; false if it is not
Throws:: 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.

Parameters:: 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
Throws:: 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.

Parameters:: columnIndex - the first column is 1, the second is 2, ...; property - true if the column is a cash value; false if it is not
Throws:: 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

Parameters:: columnIndex - the first column is 1, the second is 2, ...; property - one of the following constants: ResultSetMetaData.columnNoNulls, ResultSetMetaData.columnNullable, or ResultSetMetaData.columnNullableUnknown
Throws:: 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.

Parameters:: columnIndex - the first column is 1, the second is 2, ...; property - true if the column is a signed number; false if it is not
Throws:: 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.

Parameters:: columnIndex - the first column is 1, the second is 2, ...; size - the normal maximum number of characters for the designated column
Throws:: 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.

Parameters:: columnIndex - the first column is 1, the second is 2, ...; label - the column title
Throws:: 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.

Parameters:: columnIndex - the first column is 1, the second is 2, ...; columnName - the designated column's name
Throws:: 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.

Parameters:: columnIndex - the first column is 1, the second is 2, ...; schemaName - the schema name
Throws:: 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.

Parameters:: columnIndex - the first column is 1, the second is 2, ...; precision - the total number of decimal digits
Throws:: 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.

Parameters:: columnIndex - the first column is 1, the second is 2, ...; scale - the number of digits to right of decimal point
Throws:: 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.

Parameters:: columnIndex - the first column is 1, the second is 2, ...; tableName - the column's table name
Throws:: 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.

Parameters:: columnIndex - the first column is 1, the second is 2, ...; catalogName - the column's catalog name
Throws:: 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.

Parameters:: columnIndex - the first column is 1, the second is 2, ...; SQLType - the column's SQL type
Throws:: SQLException - if a database access error occurs
See Also:: 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.

Parameters:: columnIndex - the first column is 1, the second is 2, ...; typeName - data source specific type name.
Throws:: SQLException - if a database access error occurs