H2 Database Engine 2.3.232 · org.h2.jdbc.JdbcResultSetMetaData

Modifier and Type	Field and Description
private final String	catalog
private final int	columnCount
private final JdbcPreparedStatement	prep
private final ResultInterface	result
private final JdbcResultSet	rs

Access	Constructor and Description
pack-priv	JdbcResultSetMetaData(JdbcResultSet rs, JdbcPreparedStatement prep, ResultInterface result, String catalog, Trace trace, int id)

Method Summary

Modifier and Type	Method and Description
private void	checkClosed()
public String	Returns: the catalog name getCatalogName(int the column index (1,2,...) column) Implements java.sql.ResultSetMetaData.getCatalogName. Returns the catalog name.
private int	Returns: 0-based column index getColumn(String the called method name methodName, int 1-based column index columnIndex) Writes trace information and checks validity of this object and parameter.
public String	Returns: the Java class name getColumnClassName(int the column index (1,2,...) column) Implements java.sql.ResultSetMetaData.getColumnClassName. Gets the Java class name of the object that will be returned if ResultSet.getObject is called.
public int	Returns: the number of columns getColumnCount() Implements java.sql.ResultSetMetaData.getColumnCount. Returns the number of columns.
public int	Returns: the display size getColumnDisplaySize(int the column index (1,2,...) column) Implements java.sql.ResultSetMetaData.getColumnDisplaySize. Gets the maximum display size for this column.
public String	Returns: the column label getColumnLabel(int the column index (1,2,...) column) Implements java.sql.ResultSetMetaData.getColumnLabel. Returns the column label.
public String	Returns: the column name getColumnName(int the column index (1,2,...) column) Implements java.sql.ResultSetMetaData.getColumnName. Returns the column name.
public int	Returns: the data type getColumnType(int the column index (1,2,...) column) Implements java.sql.ResultSetMetaData.getColumnType. Returns the data type of a column.
public String	Returns: the data type name getColumnTypeName(int the column index (1,2,...) column) Implements java.sql.ResultSetMetaData.getColumnTypeName. Returns the data type name of a column.
public int	Returns: the precision getPrecision(int the column index (1,2,...) column) Implements java.sql.ResultSetMetaData.getPrecision. Gets the precision for this column.
public int	Returns: the scale getScale(int the column index (1,2,...) column) Implements java.sql.ResultSetMetaData.getScale. Gets the scale for this column.
public String	Returns: the schema name, or "" (an empty string) if not applicable getSchemaName(int the column index (1,2,...) column) Implements java.sql.ResultSetMetaData.getSchemaName. Returns the schema name.
public String	Returns: the table name getTableName(int the column index (1,2,...) column) Implements java.sql.ResultSetMetaData.getTableName. Returns the table name.
public boolean	Returns: false isAutoIncrement(int the column index (1,2,...) column) Implements java.sql.ResultSetMetaData.isAutoIncrement. Checks if this an autoincrement column.
public boolean	Returns: true isCaseSensitive(int the column index (1,2,...) column) Implements java.sql.ResultSetMetaData.isCaseSensitive. Checks if this column is case sensitive.
public boolean	Returns: false isCurrency(int the column index (1,2,...) column) Implements java.sql.ResultSetMetaData.isCurrency. Checks if this is a currency column.
public boolean	Returns: false isDefinitelyWritable(int the column index (1,2,...) column) Implements java.sql.ResultSetMetaData.isDefinitelyWritable. Checks whether a write on this column will definitely succeed.
public int	Returns: ResultSetMetaData.column* isNullable(int the column index (1,2,...) column) Implements java.sql.ResultSetMetaData.isNullable. Checks if this is nullable column.
public boolean	Returns: false isReadOnly(int the column index (1,2,...) column) Implements java.sql.ResultSetMetaData.isReadOnly. Checks if this column is read only.
public boolean	Returns: true isSearchable(int the column index (1,2,...) column) Implements java.sql.ResultSetMetaData.isSearchable. Checks if this column is searchable.
public boolean	Returns: true for numeric columns isSigned(int the column index (1,2,...) column) Implements java.sql.ResultSetMetaData.isSigned. Checks if this column is signed.
public boolean	Returns: whether or not the interface is assignable from this class isWrapperFor(Class<?> the class iface) Implements java.sql.Wrapper.isWrapperFor. Checks if unwrap can return an object of this class.
public boolean	Returns: true isWritable(int the column index (1,2,...) column) Implements java.sql.ResultSetMetaData.isWritable. Checks whether it is possible for a write on this column to succeed.
public String	toString() Overrides java.lang.Object.toString. INTERNAL
public <T> T	Returns: this unwrap(Class<T> the class iface) Implements java.sql.Wrapper.unwrap. Return an object of this class if possible.

catalog	back to summary
private final String catalog

columnCount	back to summary
private final int columnCount

prep	back to summary
private final JdbcPreparedStatement prep

result	back to summary
private final ResultInterface result

rs	back to summary
private final JdbcResultSet rs

Method Detail

checkClosed	back to summary
private void checkClosed()

getCatalogName	back to summary
public String getCatalogName(int column) throws SQLException Implements java.sql.ResultSetMetaData.getCatalogName. Returns the catalog name. Parameters column:int the column index (1,2,...) Returns:String the catalog name Annotations @Override Exceptions SQLException: if the result set is closed or invalid

getCatalogName

back to summary

public String getCatalogName(int column) throws SQLException

Implements java.sql.ResultSetMetaData.getCatalogName.

Returns the catalog name.

Parameters

column:int: the column index (1,2,...)

Returns:String

the catalog name

Annotations

@Override

Exceptions

SQLException:: if the result set is closed or invalid

getColumn	back to summary
private int getColumn(String methodName, int columnIndex) Writes trace information and checks validity of this object and parameter. Parameters methodName:String the called method name columnIndex:int 1-based column index Returns:int 0-based column index

getColumn

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private int getColumn(String methodName, int columnIndex)

Writes trace information and checks validity of this object and parameter.

Parameters

methodName:String: the called method name
columnIndex:int: 1-based column index

Returns:int

0-based column index

getColumnClassName	back to summary
public String getColumnClassName(int column) throws SQLException Implements java.sql.ResultSetMetaData.getColumnClassName. Gets the Java class name of the object that will be returned if ResultSet.getObject is called. Parameters column:int the column index (1,2,...) Returns:String the Java class name Annotations @Override Exceptions SQLException: if the result set is closed or invalid

getColumnClassName

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public String getColumnClassName(int column) throws SQLException

Implements java.sql.ResultSetMetaData.getColumnClassName.

Gets the Java class name of the object that will be returned if ResultSet.getObject is called.

Parameters

column:int: the column index (1,2,...)

Returns:String

the Java class name

Annotations

@Override

Exceptions

SQLException:: if the result set is closed or invalid

getColumnCount	back to summary
public int getColumnCount() throws SQLException Implements java.sql.ResultSetMetaData.getColumnCount. Returns the number of columns. Returns:int the number of columns Annotations @Override Exceptions SQLException: if the result set is closed or invalid

getColumnCount

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public int getColumnCount() throws SQLException

Implements java.sql.ResultSetMetaData.getColumnCount.

Returns the number of columns.

Returns:int

the number of columns

Annotations

@Override

Exceptions

SQLException:: if the result set is closed or invalid

getColumnDisplaySize	back to summary
public int getColumnDisplaySize(int column) throws SQLException Implements java.sql.ResultSetMetaData.getColumnDisplaySize. Gets the maximum display size for this column. Parameters column:int the column index (1,2,...) Returns:int the display size Annotations @Override Exceptions SQLException: if the result set is closed or invalid

getColumnDisplaySize

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public int getColumnDisplaySize(int column) throws SQLException

Implements java.sql.ResultSetMetaData.getColumnDisplaySize.

Gets the maximum display size for this column.

Parameters

column:int: the column index (1,2,...)

Returns:int

the display size

Annotations

@Override

Exceptions

SQLException:: if the result set is closed or invalid

getColumnLabel	back to summary
public String getColumnLabel(int column) throws SQLException Implements java.sql.ResultSetMetaData.getColumnLabel. Returns the column label. Parameters column:int the column index (1,2,...) Returns:String the column label Annotations @Override Exceptions SQLException: if the result set is closed or invalid

getColumnLabel

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public String getColumnLabel(int column) throws SQLException

Implements java.sql.ResultSetMetaData.getColumnLabel.

Returns the column label.

Parameters

column:int: the column index (1,2,...)

Returns:String

the column label

Annotations

@Override

Exceptions

SQLException:: if the result set is closed or invalid

getColumnName	back to summary
public String getColumnName(int column) throws SQLException Implements java.sql.ResultSetMetaData.getColumnName. Returns the column name. Parameters column:int the column index (1,2,...) Returns:String the column name Annotations @Override Exceptions SQLException: if the result set is closed or invalid

getColumnName

back to summary

public String getColumnName(int column) throws SQLException

Implements java.sql.ResultSetMetaData.getColumnName.

Returns the column name.

Parameters

column:int: the column index (1,2,...)

Returns:String

the column name

Annotations

@Override

Exceptions

SQLException:: if the result set is closed or invalid

getColumnType	back to summary
public int getColumnType(int column) throws SQLException Implements java.sql.ResultSetMetaData.getColumnType. Returns the data type of a column. See also java.sql.Type. Parameters column:int the column index (1,2,...) Returns:int the data type Annotations @Override Exceptions SQLException: if the result set is closed or invalid

getColumnType

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public int getColumnType(int column) throws SQLException

Implements java.sql.ResultSetMetaData.getColumnType.

Returns the data type of a column. See also java.sql.Type.

Parameters

column:int: the column index (1,2,...)

Returns:int

the data type

Annotations

@Override

Exceptions

SQLException:: if the result set is closed or invalid

getColumnTypeName	back to summary
public String getColumnTypeName(int column) throws SQLException Implements java.sql.ResultSetMetaData.getColumnTypeName. Returns the data type name of a column. Parameters column:int the column index (1,2,...) Returns:String the data type name Annotations @Override Exceptions SQLException: if the result set is closed or invalid

getColumnTypeName

back to summary

public String getColumnTypeName(int column) throws SQLException

Implements java.sql.ResultSetMetaData.getColumnTypeName.

Returns the data type name of a column.

Parameters

column:int: the column index (1,2,...)

Returns:String

the data type name

Annotations

@Override

Exceptions

SQLException:: if the result set is closed or invalid

getPrecision	back to summary
public int getPrecision(int column) throws SQLException Implements java.sql.ResultSetMetaData.getPrecision. Gets the precision for this column. Parameters column:int the column index (1,2,...) Returns:int the precision Annotations @Override Exceptions SQLException: if the result set is closed or invalid

getPrecision

back to summary

public int getPrecision(int column) throws SQLException

Implements java.sql.ResultSetMetaData.getPrecision.

Gets the precision for this column.

Parameters

column:int: the column index (1,2,...)

Returns:int

the precision

Annotations

@Override

Exceptions

SQLException:: if the result set is closed or invalid

getScale	back to summary
public int getScale(int column) throws SQLException Implements java.sql.ResultSetMetaData.getScale. Gets the scale for this column. Parameters column:int the column index (1,2,...) Returns:int the scale Annotations @Override Exceptions SQLException: if the result set is closed or invalid

getScale

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public int getScale(int column) throws SQLException

Implements java.sql.ResultSetMetaData.getScale.

Gets the scale for this column.

Parameters

column:int: the column index (1,2,...)

Returns:int

the scale

Annotations

@Override

Exceptions

SQLException:: if the result set is closed or invalid

getSchemaName	back to summary
public String getSchemaName(int column) throws SQLException Implements java.sql.ResultSetMetaData.getSchemaName. Returns the schema name. Parameters column:int the column index (1,2,...) Returns:String the schema name, or "" (an empty string) if not applicable Annotations @Override Exceptions SQLException: if the result set is closed or invalid

getSchemaName

back to summary

public String getSchemaName(int column) throws SQLException

Implements java.sql.ResultSetMetaData.getSchemaName.

Returns the schema name.

Parameters

column:int: the column index (1,2,...)

Returns:String

the schema name, or "" (an empty string) if not applicable

Annotations

@Override

Exceptions

SQLException:: if the result set is closed or invalid

getTableName	back to summary
public String getTableName(int column) throws SQLException Implements java.sql.ResultSetMetaData.getTableName. Returns the table name. Parameters column:int the column index (1,2,...) Returns:String the table name Annotations @Override Exceptions SQLException: if the result set is closed or invalid

getTableName

back to summary

public String getTableName(int column) throws SQLException

Implements java.sql.ResultSetMetaData.getTableName.

Returns the table name.

Parameters

column:int: the column index (1,2,...)

Returns:String

the table name

Annotations

@Override

Exceptions

SQLException:: if the result set is closed or invalid

isAutoIncrement	back to summary
public boolean isAutoIncrement(int column) throws SQLException Implements java.sql.ResultSetMetaData.isAutoIncrement. Checks if this an autoincrement column. Parameters column:int the column index (1,2,...) Returns:boolean false Annotations @Override Exceptions SQLException: if the result set is closed or invalid

isAutoIncrement

back to summary

public boolean isAutoIncrement(int column) throws SQLException

Implements java.sql.ResultSetMetaData.isAutoIncrement.

Checks if this an autoincrement column.

Parameters

column:int: the column index (1,2,...)

Returns:boolean

false

Annotations

@Override

Exceptions

SQLException:: if the result set is closed or invalid

isCaseSensitive	back to summary
public boolean isCaseSensitive(int column) throws SQLException Implements java.sql.ResultSetMetaData.isCaseSensitive. Checks if this column is case sensitive. It always returns true. Parameters column:int the column index (1,2,...) Returns:boolean true Annotations @Override Exceptions SQLException: if the result set is closed or invalid

isCaseSensitive

back to summary

public boolean isCaseSensitive(int column) throws SQLException

Implements java.sql.ResultSetMetaData.isCaseSensitive.

Checks if this column is case sensitive. It always returns true.

Parameters

column:int: the column index (1,2,...)

Returns:boolean

true

Annotations

@Override

Exceptions

SQLException:: if the result set is closed or invalid

isCurrency	back to summary
public boolean isCurrency(int column) throws SQLException Implements java.sql.ResultSetMetaData.isCurrency. Checks if this is a currency column. It always returns false. Parameters column:int the column index (1,2,...) Returns:boolean false Annotations @Override Exceptions SQLException: if the result set is closed or invalid

isCurrency

back to summary

public boolean isCurrency(int column) throws SQLException

Implements java.sql.ResultSetMetaData.isCurrency.

Checks if this is a currency column. It always returns false.

Parameters

column:int: the column index (1,2,...)

Returns:boolean

false

Annotations

@Override

Exceptions

SQLException:: if the result set is closed or invalid

isDefinitelyWritable	back to summary
public boolean isDefinitelyWritable(int column) throws SQLException Implements java.sql.ResultSetMetaData.isDefinitelyWritable. Checks whether a write on this column will definitely succeed. It always returns false. Parameters column:int the column index (1,2,...) Returns:boolean false Annotations @Override Exceptions SQLException: if the result set is closed or invalid

isDefinitelyWritable

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public boolean isDefinitelyWritable(int column) throws SQLException

Implements java.sql.ResultSetMetaData.isDefinitelyWritable.

Checks whether a write on this column will definitely succeed. It always returns false.

Parameters

column:int: the column index (1,2,...)

Returns:boolean

false

Annotations

@Override

Exceptions

SQLException:: if the result set is closed or invalid

isNullable	back to summary
public int isNullable(int column) throws SQLException Implements java.sql.ResultSetMetaData.isNullable. Checks if this is nullable column. Returns ResultSetMetaData.columnNullableUnknown if this is not a column of a table. Otherwise, it returns ResultSetMetaData.columnNoNulls if the column is not nullable, and ResultSetMetaData.columnNullable if it is nullable. Parameters column:int the column index (1,2,...) Returns:int ResultSetMetaData.column* Annotations @Override Exceptions SQLException: if the result set is closed or invalid

isNullable

back to summary

public int isNullable(int column) throws SQLException

Implements java.sql.ResultSetMetaData.isNullable.

Checks if this is nullable column. Returns ResultSetMetaData.columnNullableUnknown if this is not a column of a table. Otherwise, it returns ResultSetMetaData.columnNoNulls if the column is not nullable, and ResultSetMetaData.columnNullable if it is nullable.

Parameters

column:int: the column index (1,2,...)

Returns:int

ResultSetMetaData.column*

Annotations

@Override

Exceptions

SQLException:: if the result set is closed or invalid

isReadOnly	back to summary
public boolean isReadOnly(int column) throws SQLException Implements java.sql.ResultSetMetaData.isReadOnly. Checks if this column is read only. It always returns false. Parameters column:int the column index (1,2,...) Returns:boolean false Annotations @Override Exceptions SQLException: if the result set is closed or invalid

isReadOnly

back to summary

public boolean isReadOnly(int column) throws SQLException

Implements java.sql.ResultSetMetaData.isReadOnly.

Checks if this column is read only. It always returns false.

Parameters

column:int: the column index (1,2,...)

Returns:boolean

false

Annotations

@Override

Exceptions

SQLException:: if the result set is closed or invalid

isSearchable	back to summary
public boolean isSearchable(int column) throws SQLException Implements java.sql.ResultSetMetaData.isSearchable. Checks if this column is searchable. It always returns true. Parameters column:int the column index (1,2,...) Returns:boolean true Annotations @Override Exceptions SQLException: if the result set is closed or invalid

isSearchable

back to summary

public boolean isSearchable(int column) throws SQLException

Implements java.sql.ResultSetMetaData.isSearchable.

Checks if this column is searchable. It always returns true.

Parameters

column:int: the column index (1,2,...)

Returns:boolean

true

Annotations

@Override

Exceptions

SQLException:: if the result set is closed or invalid

isSigned	back to summary
public boolean isSigned(int column) throws SQLException Implements java.sql.ResultSetMetaData.isSigned. Checks if this column is signed. Returns true for numeric columns. Parameters column:int the column index (1,2,...) Returns:boolean true for numeric columns Annotations @Override Exceptions SQLException: if the result set is closed or invalid

isSigned

back to summary

public boolean isSigned(int column) throws SQLException

Implements java.sql.ResultSetMetaData.isSigned.

Checks if this column is signed. Returns true for numeric columns.

Parameters

column:int: the column index (1,2,...)

Returns:boolean

true for numeric columns

Annotations

@Override

Exceptions

SQLException:: if the result set is closed or invalid

isWrapperFor	back to summary
public boolean isWrapperFor(Class<?> iface) throws SQLException Implements java.sql.Wrapper.isWrapperFor. Checks if unwrap can return an object of this class. Parameters iface:Class<?> the class Returns:boolean whether or not the interface is assignable from this class Annotations @Override Exceptions SQLException: Doc from java.sql.Wrapper.isWrapperFor. if an error occurs while determining whether this is a wrapper for an object with the given interface.

isWrapperFor

back to summary

public boolean isWrapperFor(Class<?> iface) throws SQLException

Implements java.sql.Wrapper.isWrapperFor.

Checks if unwrap can return an object of this class.

Parameters

iface:Class<?>: the class

Returns:boolean

whether or not the interface is assignable from this class

Annotations

@Override

Exceptions

SQLException:

Doc from java.sql.Wrapper.isWrapperFor.

if an error occurs while determining whether this is a wrapper for an object with the given interface.

isWritable	back to summary
public boolean isWritable(int column) throws SQLException Implements java.sql.ResultSetMetaData.isWritable. Checks whether it is possible for a write on this column to succeed. It always returns true. Parameters column:int the column index (1,2,...) Returns:boolean true Annotations @Override Exceptions SQLException: if the result set is closed or invalid

isWritable

back to summary

public boolean isWritable(int column) throws SQLException

Implements java.sql.ResultSetMetaData.isWritable.

Checks whether it is possible for a write on this column to succeed. It always returns true.

Parameters

column:int: the column index (1,2,...)

Returns:boolean

true

Annotations

@Override

Exceptions

SQLException:: if the result set is closed or invalid

toString	back to summary
public String toString() Overrides java.lang.Object.toString. INTERNAL Returns:String Doc from java.lang.Object.toString. a string representation of the object Annotations @Override

toString

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public String toString()

Overrides java.lang.Object.toString.

INTERNAL

Returns:String

Doc from java.lang.Object.toString.

a string representation of the object

Annotations

@Override

unwrap	back to summary
public <T> T unwrap(Class<T> iface) throws SQLException Implements java.sql.Wrapper.unwrap. Return an object of this class if possible. Parameters <T> Doc from java.sql.Wrapper.unwrap. the type of the class modeled by this Class object iface:Class<T> the class Returns:T this Annotations @Override @SuppressWarnings:unchecked Exceptions SQLException: Doc from java.sql.Wrapper.unwrap. If no object found that implements the interface

unwrap

back to summary

public <T> T unwrap(Class<T> iface) throws SQLException

Implements java.sql.Wrapper.unwrap.

Return an object of this class if possible.

Parameters