org.dlese.dpc.index.search
Class DateRangeFilter

java.lang.Object
  org.apache.lucene.search.Filter
      org.dlese.dpc.index.search.DateRangeFilter

All Implemented Interfaces:

Serializable

public class DateRangeFilter
extends org.apache.lucene.search.Filter

Filters Lucene search results based on a range of Dates or times. This implements similar functionality as the the deprecated Lucene 1.4 DateFilter. Assumes that fields are indexed using the Lucene DateTools format of yyyyMMddHHmmss, to a granularity of seconds.

Author:

John Weatherley

See Also:

Serialized Form

Constructor Summary

DateRangeFilter(String f, Date from, Date to)
Constructs a filter for field f matching dates between from and to inclusively.

Method Summary

static DateRangeFilter	After(String field, Date date) Constructs a filter for field f matching dates on or after date.
static DateRangeFilter	After(String field, long time) Constructs a filter for field f matching times on or after time.
static DateRangeFilter	Before(String field, Date date) Constructs a filter for field f matching dates on or before date.
static DateRangeFilter	Before(String field, long time) Constructs a filter for field f matching times on or before time.
org.apache.lucene.search.DocIdSet	getDocIdSet(org.apache.lucene.index.IndexReader reader)

Methods inherited from class java.lang.Object

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

Constructor Detail

DateRangeFilter

public DateRangeFilter(String f,
                       Date from,
                       Date to)

Constructs a filter for field f matching dates between from and to inclusively. Uses time resolution to seconds.

Parameters:

f - The field name

from - From Date

to - To Date

Method Detail

Before

public static DateRangeFilter Before(String field,
                                     Date date)

Constructs a filter for field f matching dates on or before date. Uses time resolution to seconds.

Parameters:

field - Field name

date - The Date

Returns:

The Filter

After

public static DateRangeFilter After(String field,
                                    Date date)

Constructs a filter for field f matching dates on or after date. Uses time resolution to seconds.

Parameters:

field - Field name

date - The Date

Returns:

The Filter

Before

public static DateRangeFilter Before(String field,
                                     long time)

Constructs a filter for field f matching times on or before time. Uses time resolution to seconds.

Parameters:

field - Field name

time - The time

Returns:

The Filter

After

public static DateRangeFilter After(String field,
                                    long time)

Constructs a filter for field f matching times on or after time. Uses time resolution to seconds.

Parameters:

field - Field name

time - The time

Returns:

The Filter

getDocIdSet

public org.apache.lucene.search.DocIdSet getDocIdSet(org.apache.lucene.index.IndexReader reader)
                                              throws IOException

Specified by:

getDocIdSet in class org.apache.lucene.search.Filter

Throws:

IOException