# Interface: com.pnfsoftware.jeb.core.dao.IFileDatabaseReader

A database record reader.

## Method: getBackingFile
- return type: `java.io.File`

Description: Retrieve the backing file, if any.
return: the backing file
throws: if no backing file exists

## Method: getRecord
- parameter: `type`, type: `int`
- return type: `java.io.InputStream`

Description: Retrieve a record.
parameter: type: record type
return: record data stream
throws: if the record could not be retrieved

## Method: getRecord
- parameter: `r`, type: `com.pnfsoftware.jeb.core.dao.impl.JDB2Reader.RecordDescription`
- return type: `java.io.InputStream`

Description: Retrieve a record.
parameter: r: record description
return: record data stream
throws: if the record could not be retrieved

## Method: getRecordDescription
- parameter: `type`, type: `int`
- return type: `com.pnfsoftware.jeb.core.dao.impl.JDB2Reader.RecordDescription`

Description: Retrieve the description of a record of a given type.
parameter: type: record type
return: the matching record description, or `null` if no such record exists

## Method: getRecordDescriptions
- return type: `java.util.List<com.pnfsoftware.jeb.core.dao.impl.JDB2Reader.RecordDescription>`

Description: Retrieve the descriptions of all records contained in the database.
return: the record descriptions in storage order

## Method: hasBackingFile
- return type: `boolean`

Description: Determine if this database is backed by a file.
return: `true` if a backing file is available