Package com.datasqrl.json

Class JsonObjectAgg

java.lang.Object

org.apache.flink.table.functions.UserDefinedFunction

org.apache.flink.table.functions.ImperativeAggregateFunction<T,ACC>

org.apache.flink.table.functions.AggregateFunction<Object,ObjectAgg>

com.datasqrl.json.JsonObjectAgg

All Implemented Interfaces:

Serializable, org.apache.flink.table.functions.FunctionDefinition

public class JsonObjectAgg
extends org.apache.flink.table.functions.AggregateFunction<Object,ObjectAgg>

Aggregation function that merges JSON objects into a single JSON object. If two JSON objects share the same field name, the value of the later one is used in the aggregated result.

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor	Description
JsonObjectAgg()

Method Summary

Modifier and Type	Method	Description
void	accumulate(ObjectAgg accumulator, String key, Double value)
void	accumulate(ObjectAgg accumulator, String key, Integer value)
void	accumulate(ObjectAgg accumulator, String key, Long value)
void	accumulate(ObjectAgg accumulator, String key, Object value)
void	accumulate(ObjectAgg accumulator, String key, String value)
void	accumulateObject(ObjectAgg accumulator, String key, Object value)
ObjectAgg	createAccumulator()
com.datasqrl.json.FlinkJsonType	getValue(ObjectAgg accumulator)
void	merge(ObjectAgg accumulator, Iterable<ObjectAgg> iterable)
void	retract(ObjectAgg accumulator, String key, Double value)
void	retract(ObjectAgg accumulator, String key, Integer value)
void	retract(ObjectAgg accumulator, String key, Long value)
void	retract(ObjectAgg accumulator, String key, Object value)
void	retract(ObjectAgg accumulator, String key, String value)
void	retractObject(ObjectAgg accumulator, String key)

Methods inherited from class org.apache.flink.table.functions.AggregateFunction

getKind, getTypeInference

Methods inherited from class org.apache.flink.table.functions.ImperativeAggregateFunction

getAccumulatorType, getResultType

Methods inherited from class org.apache.flink.table.functions.UserDefinedFunction

close, functionIdentifier, open, toString

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, wait, wait, wait

Methods inherited from interface org.apache.flink.table.functions.FunctionDefinition

getRequirements, isDeterministic

Constructor Detail

JsonObjectAgg

public JsonObjectAgg()

Method Detail

createAccumulator

public ObjectAgg createAccumulator()

Specified by:

createAccumulator in class org.apache.flink.table.functions.ImperativeAggregateFunction<Object,ObjectAgg>

accumulate

public void accumulate(ObjectAgg accumulator,
                       String key,
                       String value)

accumulate

public void accumulate(ObjectAgg accumulator,
                       String key,
                       Object value)

accumulate

public void accumulate(ObjectAgg accumulator,
                       String key,
                       Double value)

accumulate

public void accumulate(ObjectAgg accumulator,
                       String key,
                       Long value)

accumulate

public void accumulate(ObjectAgg accumulator,
                       String key,
                       Integer value)

accumulateObject

public void accumulateObject(ObjectAgg accumulator,
                             String key,
                             Object value)

retract

public void retract(ObjectAgg accumulator,
                    String key,
                    String value)

retract

public void retract(ObjectAgg accumulator,
                    String key,
                    Object value)

retract

public void retract(ObjectAgg accumulator,
                    String key,
                    Double value)

retract

public void retract(ObjectAgg accumulator,
                    String key,
                    Long value)

retract

public void retract(ObjectAgg accumulator,
                    String key,
                    Integer value)

retractObject

public void retractObject(ObjectAgg accumulator,
                          String key)

merge

public void merge(ObjectAgg accumulator,
                  Iterable<ObjectAgg> iterable)

getValue

public com.datasqrl.json.FlinkJsonType getValue(ObjectAgg accumulator)

Specified by:

getValue in class org.apache.flink.table.functions.AggregateFunction<Object,ObjectAgg>