public class LuceneTimeline<T extends PropertyContainer> extends Object implements TimelineIndex<T>
Constructor and Description |
---|
LuceneTimeline(GraphDatabaseService db,
Index<T> index) |
Modifier and Type | Method and Description |
---|---|
void |
add(T entity,
long timestamp)
Adds an entity to this timeline with the given
timestamp . |
IndexHits<T> |
getBetween(Long startTimestampOrNull,
Long endTimestampOrNull)
Query the timeline with optional lower/upper bounds and get back
entities within that range, ordered by date with lowest first.
|
IndexHits<T> |
getBetween(Long startTimestampOrNull,
Long endTimestampOrNull,
boolean reversed)
Query the timeline with optional lower/upper bounds and get back
entities within that range, ordered by date.
|
T |
getFirst() |
T |
getLast() |
void |
remove(T entity,
long timestamp)
Removes an entity from the timeline.
|
public LuceneTimeline(GraphDatabaseService db, Index<T> index)
public T getLast()
getLast
in interface TimelineIndex<T extends PropertyContainer>
null
if the timeline is empty.public T getFirst()
getFirst
in interface TimelineIndex<T extends PropertyContainer>
null
if the timeline is empty.public void remove(T entity, long timestamp)
TimelineIndex
remove
in interface TimelineIndex<T extends PropertyContainer>
entity
- the entity to remove from this timeline.timestamp
- the timestamp this entity was added with.public void add(T entity, long timestamp)
TimelineIndex
timestamp
.add
in interface TimelineIndex<T extends PropertyContainer>
entity
- the entity to add to this timeline.timestamp
- the timestamp to use.public IndexHits<T> getBetween(Long startTimestampOrNull, Long endTimestampOrNull)
TimelineIndex
getBetween
in interface TimelineIndex<T extends PropertyContainer>
startTimestampOrNull
- the start timestamp, entities with greater
timestamp value will be returned (exclusive). Will be ignored if null
.endTimestampOrNull
- the end timestamp, entities with lesser timestamp
value will be returned (exclude). Will be ignored if null
.public IndexHits<T> getBetween(Long startTimestampOrNull, Long endTimestampOrNull, boolean reversed)
TimelineIndex
reversed
is
true
the order of the result is reversed.getBetween
in interface TimelineIndex<T extends PropertyContainer>
startTimestampOrNull
- the start timestamp, entities with greater
timestamp value will be returned (exclusive). Will be ignored if null
.endTimestampOrNull
- the end timestamp, entities with lesser timestampreversed
- reverses the result order if true
.
value will be returned (exclude). Will be ignored if null
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