org.datanucleus.store.rdbms.schema

Class MSSQLTypeInfo

java.lang.Object

org.datanucleus.store.rdbms.schema.SQLTypeInfo

org.datanucleus.store.rdbms.schema.MSSQLTypeInfo

All Implemented Interfaces:

org.datanucleus.store.schema.StoreSchemaData

public class MSSQLTypeInfo
extends SQLTypeInfo

SQL Type info for MSSQL datastores.

Field Summary

Fields

Modifier and Type	Field and Description
static int	NTEXT sql type NTEXT
static int	NVARCHAR sql type NVARCHAR
static int	UNIQUEIDENTIFIER sql type UNIQUEIDENTIFIER

Fields inherited from class org.datanucleus.store.rdbms.schema.SQLTypeInfo

allowsPrecisionSpec, autoIncrement, caseSensitive, createParams, dataType, fixedPrecScale, literalPrefix, literalSuffix, localTypeName, maximumScale, minimumScale, nullable, numPrecRadix, precision, searchable, typeName, unsignedAttribute

Constructor Summary

Constructors

Constructor and Description
MSSQLTypeInfo(ResultSet rs) Constructs a type information object from the current row of the given result set.
MSSQLTypeInfo(String typeName, short dataType, int precision, String literalPrefix, String literalSuffix, String createParams, int nullable, boolean caseSensitive, short searchable, boolean unsignedAttribute, boolean fixedPrecScale, boolean autoIncrement, String localTypeName, short minimumScale, short maximumScale, int numPrecRadix)

Method Summary

Modifier and Type	Method and Description
boolean	isCompatibleWith(RDBMSColumnInfo colInfo) Convenience method for returning if this type is compatible with the provided column.

Methods inherited from class org.datanucleus.store.rdbms.schema.SQLTypeInfo

addProperty, equals, getCreateParams, getDataType, getLiteralPrefix, getLiteralSuffix, getLocalTypeName, getMaximumScale, getMinimumScale, getNullable, getNumPrecRadix, getPrecision, getProperty, getSearchable, getTypeName, hashCode, isAllowsPrecisionSpec, isAutoIncrement, isCaseSensitive, isFixedPrecScale, isUnsignedAttribute, setAllowsPrecisionSpec, setLocalTypeName, setTypeName, toString

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Field Detail

NVARCHAR

public static final int NVARCHAR

sql type NVARCHAR

See Also:

Constant Field Values

NTEXT

public static final int NTEXT

sql type NTEXT

See Also:

Constant Field Values

UNIQUEIDENTIFIER

public static final int UNIQUEIDENTIFIER

sql type UNIQUEIDENTIFIER

See Also:

Constant Field Values

Constructor Detail

MSSQLTypeInfo

public MSSQLTypeInfo(ResultSet rs)

Constructs a type information object from the current row of the given result set.

Parameters:

rs - The result set returned from DatabaseMetaData.getTypeInfo().

MSSQLTypeInfo

public MSSQLTypeInfo(String typeName,
                     short dataType,
                     int precision,
                     String literalPrefix,
                     String literalSuffix,
                     String createParams,
                     int nullable,
                     boolean caseSensitive,
                     short searchable,
                     boolean unsignedAttribute,
                     boolean fixedPrecScale,
                     boolean autoIncrement,
                     String localTypeName,
                     short minimumScale,
                     short maximumScale,
                     int numPrecRadix)

Method Detail

isCompatibleWith

public boolean isCompatibleWith(RDBMSColumnInfo colInfo)

Description copied from class: SQLTypeInfo

Convenience method for returning if this type is compatible with the provided column. Compares the data type of each record, and returns true if the types are equivalent. For example one could be VARCHAR, and the other LONGVARCHAR so they both store string data, and hence they are compatible.

Overrides:

isCompatibleWith in class SQLTypeInfo

Parameters:

colInfo - The column

Returns:

Whether they are considered compatible