public class ArithmeticPostAggregator extends Object implements PostAggregator
Modifier and Type | Class and Description |
---|---|
static class |
ArithmeticPostAggregator.Ordering |
Modifier and Type | Field and Description |
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static Comparator |
DEFAULT_COMPARATOR |
Constructor and Description |
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ArithmeticPostAggregator(String name,
String fnName,
List<PostAggregator> fields) |
ArithmeticPostAggregator(String name,
String fnName,
List<PostAggregator> fields,
String ordering) |
Modifier and Type | Method and Description |
---|---|
Object |
compute(Map<String,Object> values) |
ArithmeticPostAggregator |
decorate(Map<String,AggregatorFactory> aggregators)
Returns a richer post aggregator which are built from the given aggregators with their names and some accessible
environmental variables such as ones in the object scope.
|
boolean |
equals(Object o) |
byte[] |
getCacheKey()
Get a byte array used as a cache key.
|
Comparator |
getComparator() |
Set<String> |
getDependentFields() |
List<PostAggregator> |
getFields() |
String |
getFnName() |
String |
getName() |
String |
getOrdering() |
int |
hashCode() |
String |
toString() |
public static final Comparator DEFAULT_COMPARATOR
public ArithmeticPostAggregator(String name, String fnName, List<PostAggregator> fields)
public ArithmeticPostAggregator(String name, String fnName, List<PostAggregator> fields, String ordering)
public Set<String> getDependentFields()
getDependentFields
in interface PostAggregator
public Comparator getComparator()
getComparator
in interface PostAggregator
public Object compute(Map<String,Object> values)
compute
in interface PostAggregator
public String getName()
getName
in interface PostAggregator
public ArithmeticPostAggregator decorate(Map<String,AggregatorFactory> aggregators)
PostAggregator
decorate
in interface PostAggregator
aggregators
- A map of aggregator factories with their names.public byte[] getCacheKey()
Cacheable
getCacheKey
in interface Cacheable
public String getFnName()
public String getOrdering()
public List<PostAggregator> getFields()
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