com.hardcode.gdbms.engine.data.metadata
Interface Metadata

All Known Implementing Classes:

DefaultMetadata, MetadataEditionSupport.ModifiedMetadata

public interface Metadata

Gets information about the DataSource

Method Summary

int	getFieldCount()
java.lang.String	getFieldName(int fieldId) Gets the name of the specified field
int	getFieldType(int fieldId) Gets the type of the specified field
java.lang.String[]	getPrimaryKey() Gets the names of the primary key fields
java.lang.Boolean	isReadOnly(int fieldId)

Method Detail

getFieldCount

int getFieldCount()
                  throws DriverException

Returns:

Number of fields

Throws:

DriverException

getFieldType

int getFieldType(int fieldId)
                 throws DriverException

Gets the type of the specified field

Parameters:

fieldId - index of the field

Returns:

Throws:

DriverException

getFieldName

java.lang.String getFieldName(int fieldId)
                              throws DriverException

Gets the name of the specified field

Parameters:

fieldId - index of the field

Returns:

String

Throws:

DriverException

getPrimaryKey

java.lang.String[] getPrimaryKey()
                                 throws DriverException

Gets the names of the primary key fields

Returns:

Throws:

DriverException

isReadOnly

java.lang.Boolean isReadOnly(int fieldId)
                             throws DriverException

Parameters:

fieldId - index of the field

Returns:

True if the field is read only, false if not and null if the underlying format does not have information about

Throws:

DriverException