prajna.data

Class TimeSpanFilter

java.lang.Object

prajna.data.DataFilter

prajna.data.TimeSpanFilter

All Implemented Interfaces:

java.io.Serializable

public class TimeSpanFilter
extends DataFilter

Filter which checks the time values for a given field, and compares them against a specified timespan. This class allows filtering of records based upon a particular window of time.

Author:

Edward Swing

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
TimeSpanFilter(TimeSpan span, java.lang.String fieldName) Create a TimeSpanFilter with the given time span and field name.

Method Summary

Methods

Modifier and Type	Method and Description
boolean	accept(DataRecord record) Return whether the filter accepts the data record.

Methods inherited from class prajna.data.DataFilter

filterRecords

Methods inherited from class java.lang.Object

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

Constructor Detail

TimeSpanFilter

public TimeSpanFilter(TimeSpan span,
              java.lang.String fieldName)

Create a TimeSpanFilter with the given time span and field name. The field name should correspond to a time field in the set of data records.

Parameters:

span -

fieldName -

Method Detail

accept

public boolean accept(DataRecord record)

Return whether the filter accepts the data record. The DataRecord is accepted if the record contains a value in the specified time field which intersects the TimeSpan for this filter

Specified by:

accept in class DataFilter

Parameters:

record - the record

Returns:

true if the record matches this filter, false otherwise