Package hec.io.dbf

Class DbfRecordQuery

java.lang.Object

hec.io.dbf.DefaultDbfRecordIndexSet

hec.io.dbf.DbfRecordQuery

All Implemented Interfaces:

DbfRecordIndexSet, Serializable

Direct Known Subclasses:

DefaultDbfRecordSet

public class DbfRecordQuery
extends DefaultDbfRecordIndexSet

A class that provides the means to query data from a dbf file.

See Also:

• Serialized Form

Constructor Summary

Constructors

Constructor	Description
DbfRecordQuery(DbfRecordQuery copyMe)	A copy constructor.
DbfRecordQuery(String indexTagName, Serializable[] indexTagKeys, String[] fieldNames)	Creates a query that retrieves the fields for the specified index keys using the index tag.
DbfRecordQuery(String indexTagName, String[] fieldNames)	Creates a query to retrieve all of the fields for the records in the index tag.
DbfRecordQuery(String indexFileName, String indexTagName, String[] fieldNames)	Creates a query to retrieve all of the fields for the records from the index file and tag.

Method Summary

Modifier and Type	Method	Description
String[]	getFieldNames()	Returns the fields to be queried.
void	printData()	Prints descriptive information on this object to System.out.

Methods inherited from class hec.io.dbf.DefaultDbfRecordIndexSet

getIndexFileName, getIndexTagKeys, getIndexTagName, hasIndex

Methods inherited from class java.lang.Object

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

Constructor Details

DbfRecordQuery

public DbfRecordQuery(String indexFileName,
 String indexTagName,
 String[] fieldNames)

Creates a query to retrieve all of the fields for the records from the index file and tag.

DbfRecordQuery

public DbfRecordQuery(String indexTagName,
 String[] fieldNames)

Creates a query to retrieve all of the fields for the records in the index tag.

DbfRecordQuery

public DbfRecordQuery(String indexTagName,
 Serializable[] indexTagKeys,
 String[] fieldNames)

Creates a query that retrieves the fields for the specified index keys using the index tag.

DbfRecordQuery

public DbfRecordQuery(DbfRecordQuery copyMe)

A copy constructor.

Method Details

getFieldNames

public String[] getFieldNames()

Returns the fields to be queried.

printData

public void printData()

Prints descriptive information on this object to System.out.

Specified by:

printData in interface DbfRecordIndexSet

Overrides:

printData in class DefaultDbfRecordIndexSet