Package gov.nasa.pds.objectAccess.table

Class TableDelimitedAdapter

java.lang.Object

gov.nasa.pds.objectAccess.table.TableDelimitedAdapter

All Implemented Interfaces:

TableAdapter

public class TableDelimitedAdapter
extends Object
implements TableAdapter

Constructor Summary

Constructors

Constructor	Description
TableDelimitedAdapter(TableDelimited table)	Creates a new instance for a particular table.

Method Summary

Modifier and Type	Method	Description
FieldDescription	getField(int index)	Returns the field at a given index.
int	getFieldCount()	Gets the number of fields in each record.
char	getFieldDelimiter()	Gets the field delimiter.
FieldDescription[]	getFields()	Gets the definitions of fields from the table.
List<FieldDescription>	getFieldsList()	Gets the definitions of fields from the table.
int	getMaximumRecordLength()	Gets the maximum length of each record.
long	getOffset()	Gets the offset into the data file where the table starts.
long	getRecordCount()	Gets the number of records in the table.
String	getRecordDelimiter()	Gets the record delimiter.
int	getRecordLength()	Gets the length of each record.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

TableDelimitedAdapter

public TableDelimitedAdapter(TableDelimited table)
                      throws InvalidTableException

Creates a new instance for a particular table.

Parameters:

table - the table

Throws:

InvalidTableException

Method Details

getRecordCount

public long getRecordCount()

Description copied from interface: TableAdapter

Gets the number of records in the table.

Specified by:

getRecordCount in interface TableAdapter

Returns:

the number of records

getFieldCount

public int getFieldCount()

Description copied from interface: TableAdapter

Gets the number of fields in each record. TODO This should really be a long value, but this would require a ton of changes in the code so we will attack this problem when we get there. Data with num fields larger than max int should not happen

Specified by:

getFieldCount in interface TableAdapter

Returns:

the number of fields

getField

public FieldDescription getField(int index)

Description copied from interface: TableAdapter

Returns the field at a given index. This field will be a simple field or a bit field. All grouped fields will have been expanded to their instances.

Specified by:

getField in interface TableAdapter

Parameters:

index - the field index

Returns:

the field description

getFields

public FieldDescription[] getFields()

Description copied from interface: TableAdapter

Gets the definitions of fields from the table. The fields will be a simple field or a bit field. All grouped fields will have been expanded to their instances.

Specified by:

getFields in interface TableAdapter

Returns:

an array of field descriptions

getOffset

public long getOffset()

Description copied from interface: TableAdapter

Gets the offset into the data file where the table starts.

Specified by:

getOffset in interface TableAdapter

Returns:

the table offset

getRecordLength

public int getRecordLength()

Description copied from interface: TableAdapter

Gets the length of each record. For delimited tables the record length is not defined, so -1 is returned. TODO This should really be a long value, but this would require a ton of changes in the code we will attack this problem when we get there. Data with record length larger than max int should not happen

Specified by:

getRecordLength in interface TableAdapter

Returns:

the record length, or zero for a delimited table

getRecordDelimiter

public String getRecordDelimiter()

Description copied from interface: TableAdapter

Gets the record delimiter. For binary tables the record delimiter is not defined, so null is returned.

Specified by:

getRecordDelimiter in interface TableAdapter

Returns:

the record delimiter, or null for binary table

getFieldDelimiter

public char getFieldDelimiter()

Description copied from interface: TableAdapter

Gets the field delimiter. For non-delimited tables, will return 0.

Specified by:

getFieldDelimiter in interface TableAdapter

Returns:

the field delimiter, or 0 for non-delimited table

getFieldsList

public List<FieldDescription> getFieldsList()

Description copied from interface: TableAdapter

Gets the definitions of fields from the table. The fields will be a simple field or a bit field. All grouped fields will have been expanded to their instances.

Specified by:

getFieldsList in interface TableAdapter

Returns:

an array of field descriptions

getMaximumRecordLength

public int getMaximumRecordLength()

Description copied from interface: TableAdapter

Gets the maximum length of each record. Optional only for delimited tables. Will return -1 if not available.

Specified by:

getMaximumRecordLength in interface TableAdapter

Returns:

the maximum record lengths