ResultSetDescription (sqlhelper-common 3.2.4 API)

java.lang.Object
- com.jn.sqlhelper.common.resultset.ResultSetDescription

public class ResultSetDescription
extends Object

字段概要

字段
限定符和类型	字段和说明
`static int`	`columnNoNulls` The constant indicating that a column does not allow `NULL` values.
`static int`	`columnNullableUnknown` The constant indicating that the nullability of a column's values is unknown.

构造器概要

构造器
构造器和说明

ResultSetDescription(ResultSetMetaData resultSetMetaData)

构造器
构造器和说明
`ResultSetDescription(ResultSetMetaData resultSetMetaData)`

方法概要

所有方法实例方法具体方法
限定符和类型	方法和说明
`String`	`getCatalogName(int column)` Gets the designated column's table's catalog name.
`String`	`getColumnClassName(int column)` Returns the fully-qualified name of the Java class whose instances are manufactured if the method `ResultSet.getObject` is called to retrieve a value from the column.
`int`	`getColumnCount()`
`int`	`getColumnDisplaySize(int column)` Indicates the designated column's normal maximum width in characters.
`String`	`getColumnLabel(int column)` Gets the designated column's suggested title for use in printouts and displays.
`String`	`getColumnName(int column)` Get the designated column's name.
`List<String>`	`getColumnNames()`
`JdbcType`	`getColumnType(int column)` Retrieves the designated column's SQL type.
`String`	`getColumnTypeName(int column)` Retrieves the designated column's database-specific type name.
`int`	`getPrecision(int column)` Get the designated column's specified column size.
`int`	`getScale(int column)` Gets the designated column's number of digits to right of the decimal point. 0 is returned for data types where the scale is not applicable.
`String`	`getSchemaName(int column)` Get the designated column's table's schema.
`String`	`getTableName(int column)` Gets the designated column's table name.
`boolean`	`isAutoIncrement(int column)` Indicates whether the designated column is automatically numbered.
`boolean`	`isCaseSensitive(int column)` Indicates whether a column's case matters.
`boolean`	`isCurrency(int column)` Indicates whether the designated column is a cash value.
`boolean`	`isDefinitelyWritable(int column)` Indicates whether a write on the designated column will definitely succeed.
`int`	`isNullable(int column)` Indicates the nullability of values in the designated column.
`boolean`	`isReadOnly(int column)` Indicates whether the designated column is definitely not writable.
`boolean`	`isSearchable(int column)` Indicates whether the designated column can be used in a where clause.
`boolean`	`isSigned(int column)` Indicates whether values in the designated column are signed numbers.
`boolean`	`isWritable(int column)` Indicates whether it is possible for a write on the designated column to succeed.

从类继承的方法 java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- 字段详细资料
  - columnNoNulls
```
public static final int columnNoNulls
```
    The constant indicating that a column does not allow NULL values.
    
    另请参阅:
    
    常量字段值
  - columnNullableUnknown
```
public static final int columnNullableUnknown
```
    The constant indicating that the nullability of a column's values is unknown.
    
    另请参阅:
    
    常量字段值
- 构造器详细资料
  - ResultSetDescription
```
public ResultSetDescription(ResultSetMetaData resultSetMetaData)
```
- 方法详细资料
  - getColumnCount
```
public int getColumnCount()
```
  - isAutoIncrement
```
public boolean isAutoIncrement(int column)
```
    Indicates whether the designated column is automatically numbered.
    
    参数:
    
    column - the first column is 1, the second is 2, ...
    
    返回:
    
    true if so; false otherwise
  - isCaseSensitive
```
public boolean isCaseSensitive(int column)
```
    Indicates whether a column's case matters.
    
    参数:
    
    column - the first column is 1, the second is 2, ...
    
    返回:
    
    true if so; false otherwise
  - isSearchable
```
public boolean isSearchable(int column)
```
    Indicates whether the designated column can be used in a where clause.
    
    参数:
    
    column - the first column is 1, the second is 2, ...
    
    返回:
    
    true if so; false otherwise
  - isCurrency
```
public boolean isCurrency(int column)
```
    Indicates whether the designated column is a cash value.
    
    参数:
    
    column - the first column is 1, the second is 2, ...
    
    返回:
    
    true if so; false otherwise
  - isNullable
```
public int isNullable(int column)
```
    Indicates the nullability of values in the designated column.
    
    参数:
    
    column - the first column is 1, the second is 2, ...
    
    返回:
    
    the nullability status of the given column; one of columnNoNulls, columnNullable or columnNullableUnknown
  - isSigned
```
public boolean isSigned(int column)
```
    Indicates whether values in the designated column are signed numbers.
    
    参数:
    
    column - the first column is 1, the second is 2, ...
    
    返回:
    
    true if so; false otherwise
  - getColumnDisplaySize
```
public int getColumnDisplaySize(int column)
```
    Indicates the designated column's normal maximum width in characters.
    
    参数:
    
    column - the first column is 1, the second is 2, ...
    
    返回:
    
    the normal maximum number of characters allowed as the width of the designated column
  - getColumnLabel
```
public String getColumnLabel(int column)
```
    Gets the designated column's suggested title for use in printouts and displays. The suggested title is usually specified by the SQL AS clause. If a SQL AS is not specified, the value returned from getColumnLabel will be the same as the value returned by the getColumnName method.
    
    参数:
    
    column - the first column is 1, the second is 2, ...
    
    返回:
    
    the suggested column title
  - getColumnName
```
public String getColumnName(int column)
```
    Get the designated column's name.
    
    参数:
    
    column - the first column is 1, the second is 2, ...
    
    返回:
    
    column name
  - getColumnNames
```
public List<String> getColumnNames()
```
  - getSchemaName
```
public String getSchemaName(int column)
```
    Get the designated column's table's schema.
    
    参数:
    
    column - the first column is 1, the second is 2, ...
    
    返回:
    
    schema name or "" if not applicable
  - getPrecision
```
public int getPrecision(int column)
```
    Get the designated column's specified column size. For numeric data, this is the maximum precision. For character data, this is the length in characters. For datetime datatypes, this is the length in characters of the String representation (assuming the maximum allowed precision of the fractional seconds component). For binary data, this is the length in bytes. For the ROWID datatype, this is the length in bytes. 0 is returned for data types where the column size is not applicable.
    
    参数:
    
    column - the first column is 1, the second is 2, ...
    
    返回:
    
    precision
  - getScale
```
public int getScale(int column)
```
    Gets the designated column's number of digits to right of the decimal point. 0 is returned for data types where the scale is not applicable.
    
    参数:
    
    column - the first column is 1, the second is 2, ...
    
    返回:
    
    scale
  - getTableName
```
public String getTableName(int column)
```
    Gets the designated column's table name.
    
    参数:
    
    column - the first column is 1, the second is 2, ...
    
    返回:
    
    table name or "" if not applicable
  - getCatalogName
```
public String getCatalogName(int column)
```
    Gets the designated column's table's catalog name.
    
    参数:
    
    column - the first column is 1, the second is 2, ...
    
    返回:
    
    the name of the catalog for the table in which the given column appears or "" if not applicable
  - getColumnType
```
public JdbcType getColumnType(int column)
```
    Retrieves the designated column's SQL type.
    
    参数:
    
    column - the first column is 1, the second is 2, ...
    
    返回:
    
    SQL type from java.sql.Types
    
    另请参阅:
    
    Types
  - getColumnTypeName
```
public String getColumnTypeName(int column)
```
    Retrieves the designated column's database-specific type name.
    
    参数:
    
    column - the first column is 1, the second is 2, ...
    
    返回:
    
    type name used by the database. If the column type is a user-defined type, then a fully-qualified type name is returned.
  - isReadOnly
```
public boolean isReadOnly(int column)
```
    Indicates whether the designated column is definitely not writable.
    
    参数:
    
    column - the first column is 1, the second is 2, ...
    
    返回:
    
    true if so; false otherwise
  - isWritable
```
public boolean isWritable(int column)
```
    Indicates whether it is possible for a write on the designated column to succeed.
    
    参数:
    
    column - the first column is 1, the second is 2, ...
    
    返回:
    
    true if so; false otherwise
  - isDefinitelyWritable
```
public boolean isDefinitelyWritable(int column)
```
    Indicates whether a write on the designated column will definitely succeed.
    
    参数:
    
    column - the first column is 1, the second is 2, ...
    
    返回:
    
    true if so; false otherwise
  - getColumnClassName
```
public String getColumnClassName(int column)
```
    Returns the fully-qualified name of the Java class whose instances are manufactured if the method ResultSet.getObject is called to retrieve a value from the column. ResultSet.getObject may return a subclass of the class returned by this method.
    
    参数:
    
    column - the first column is 1, the second is 2, ...
    
    返回:
    
    the fully-qualified name of the class in the Java programming language that would be used by the method ResultSet.getObject to retrieve the value in the specified column. This is the class name used for custom mapping.

类 ResultSetDescription

字段概要

构造器概要

方法概要

从类继承的方法 java.lang.Object

字段详细资料

columnNoNulls

columnNullableUnknown

构造器详细资料

ResultSetDescription

方法详细资料

getColumnCount

isAutoIncrement

isCaseSensitive

isSearchable

isCurrency

isNullable

isSigned

getColumnDisplaySize

getColumnLabel

getColumnName

getColumnNames

getSchemaName

getPrecision

getScale

getTableName

getCatalogName

getColumnType

getColumnTypeName

isReadOnly

isWritable

isDefinitelyWritable

getColumnClassName