public class MariaDbResultSetMetaData extends Object implements ResultSetMetaData
columnNoNulls, columnNullable, columnNullableUnknown
Constructor and Description |
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MariaDbResultSetMetaData(ColumnInformation[] fieldPackets,
int datatypeMappingFlags,
boolean returnTableAlias)
Constructor.
|
Modifier and Type | Method and Description |
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String |
getCatalogName(int column)
Get the designated column's table's schema.
|
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()
Returns the number of columns in this
ResultSet object. |
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.
|
int |
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) |
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 |
isWrapperFor(Class<?> iface)
Returns true if this either implements the interface argument or is directly or indirectly a wrapper for an
object that does.
|
boolean |
isWritable(int column)
Indicates whether it is possible for a write on the designated column to succeed.
|
<T> T |
unwrap(Class<T> iface)
Returns an object that implements the given interface to allow access to non-standard methods, or standard
methods not exposed by the proxy.
|
public MariaDbResultSetMetaData(ColumnInformation[] fieldPackets, int datatypeMappingFlags, boolean returnTableAlias)
fieldPackets
- column informationsdatatypeMappingFlags
- Data typereturnTableAlias
- must return table alias or real table namepublic int getColumnCount() throws SQLException
ResultSet
object.getColumnCount
in interface ResultSetMetaData
SQLException
- if a database access error occurspublic boolean isAutoIncrement(int column) throws SQLException
isAutoIncrement
in interface ResultSetMetaData
column
- the first column is 1, the second is 2, ...true
if so; false
otherwiseSQLException
- if a database access error occurspublic boolean isCaseSensitive(int column) throws SQLException
isCaseSensitive
in interface ResultSetMetaData
column
- the first column is 1, the second is 2, ...true
if so; false
otherwiseSQLException
- if a database access error occurspublic boolean isSearchable(int column) throws SQLException
isSearchable
in interface ResultSetMetaData
column
- the first column is 1, the second is 2, ...true
if so; false
otherwiseSQLException
- if a database access error occurspublic boolean isCurrency(int column) throws SQLException
isCurrency
in interface ResultSetMetaData
column
- the first column is 1, the second is 2, ...true
if so; false
otherwiseSQLException
- if a database access error occurspublic int isNullable(int column) throws SQLException
isNullable
in interface ResultSetMetaData
column
- the first column is 1, the second is 2, ...columnNoNulls
,
columnNullable
or columnNullableUnknown
SQLException
- if a database access error occurspublic boolean isSigned(int column) throws SQLException
isSigned
in interface ResultSetMetaData
column
- the first column is 1, the second is 2, ...true
if so; false
otherwiseSQLException
- if a database access error occurspublic int getColumnDisplaySize(int column) throws SQLException
getColumnDisplaySize
in interface ResultSetMetaData
column
- the first column is 1, the second is 2, ...SQLException
- if a database access error occurspublic String getColumnLabel(int column) throws SQLException
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.getColumnLabel
in interface ResultSetMetaData
column
- the first column is 1, the second is 2, ...SQLException
- if a database access error occurspublic String getColumnName(int column) throws SQLException
getColumnName
in interface ResultSetMetaData
column
- the first column is 1, the second is 2, ...SQLException
- if a database access error occurspublic String getCatalogName(int column) throws SQLException
getCatalogName
in interface ResultSetMetaData
column
- the first column is 1, the second is 2, ...SQLException
- if a database access error occurspublic int getPrecision(int column) throws SQLException
getPrecision
in interface ResultSetMetaData
column
- the first column is 1, the second is 2, ...SQLException
- if a database access error occurspublic int getScale(int column) throws SQLException
getScale
in interface ResultSetMetaData
column
- the first column is 1, the second is 2, ...SQLException
- if a database access error occurspublic String getTableName(int column) throws SQLException
getTableName
in interface ResultSetMetaData
column
- the first column is 1, the second is 2, ...SQLException
- if a database access error occurspublic String getSchemaName(int column) throws SQLException
getSchemaName
in interface ResultSetMetaData
SQLException
public int getColumnType(int column) throws SQLException
getColumnType
in interface ResultSetMetaData
column
- the first column is 1, the second is 2, ...SQLException
- if a database access error occursTypes
public String getColumnTypeName(int column) throws SQLException
getColumnTypeName
in interface ResultSetMetaData
column
- the first column is 1, the second is 2, ...SQLException
- if a database access error occurspublic boolean isReadOnly(int column) throws SQLException
isReadOnly
in interface ResultSetMetaData
column
- the first column is 1, the second is 2, ...true
if so; false
otherwiseSQLException
- if a database access error occurspublic boolean isWritable(int column) throws SQLException
isWritable
in interface ResultSetMetaData
column
- the first column is 1, the second is 2, ...true
if so; false
otherwiseSQLException
- if a database access error occurspublic boolean isDefinitelyWritable(int column) throws SQLException
isDefinitelyWritable
in interface ResultSetMetaData
column
- the first column is 1, the second is 2, ...true
if so; false
otherwiseSQLException
- if a database access error occurspublic String getColumnClassName(int column) throws SQLException
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.
getColumnClassName
in interface ResultSetMetaData
column
- the first column is 1, the second is 2, ...ResultSet.getObject
to retrieve the value in the specified column. This is the class name
used for custom mapping.SQLException
- if a database access error occurspublic <T> T unwrap(Class<T> iface) throws SQLException
unwrap
recursively on the
wrapped object or a proxy for that result. If the receiver is not a wrapper and does not implement the interface,
then an SQLException
is thrown.unwrap
in interface Wrapper
iface
- A Class defining an interface that the result must implement.SQLException
- If no object found that implements the interfacepublic boolean isWrapperFor(Class<?> iface) throws SQLException
isWrapperFor
on the wrapped object. If this
does not implement the interface and is not a wrapper, return false. This method should be implemented as a
low-cost operation compared to unwrap
so that callers can use this method to avoid expensive
unwrap
calls that may fail. If this method returns true then calling unwrap
with the
same argument should succeed.isWrapperFor
in interface Wrapper
iface
- a Class defining an interface.SQLException
- if an error occurs while determining whether this is a wrapper for an object with
the given interface.Copyright © 2016. All rights reserved.