com.influxdb.client.internal

Class InfluxQLQueryApiImpl

java.lang.Object

com.influxdb.internal.AbstractRestClient

com.influxdb.internal.AbstractQueryApi

com.influxdb.client.internal.InfluxQLQueryApiImpl

All Implemented Interfaces:

InfluxQLQueryApi

public class InfluxQLQueryApiImpl
extends AbstractQueryApi
implements InfluxQLQueryApi

Nested Class Summary

Nested classes/interfaces inherited from class com.influxdb.internal.AbstractQueryApi

AbstractQueryApi.FluxRecordIterator, AbstractQueryApi.RawIterator

Field Summary

Fields inherited from class com.influxdb.internal.AbstractQueryApi

DEFAULT_DIALECT, EMPTY_ACTION, ERROR_CONSUMER, fluxCsvParser, LOG, resultMapper

Constructor Summary

Constructors

Constructor and Description
InfluxQLQueryApiImpl(InfluxQLQueryService service)

Method Summary

Modifier and Type	Method and Description
InfluxQLQueryResult	query(InfluxQLQuery influxQlQuery) Executes an InfluxQL query against the legacy endpoint.
InfluxQLQueryResult	query(InfluxQLQuery influxQlQuery, InfluxQLQueryResult.Series.ValueExtractor valueExtractor) Executes an InfluxQL query against the legacy endpoint.

Methods inherited from class com.influxdb.internal.AbstractQueryApi

createBody, query, query, queryIterator, queryRaw, queryRawIterator

Methods inherited from class com.influxdb.internal.AbstractRestClient

execute, getLogLevel, ping, responseToError, setLogLevel, toInfluxException, version

Methods inherited from class java.lang.Object

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

Constructor Detail

InfluxQLQueryApiImpl

public InfluxQLQueryApiImpl(@Nonnull
                            InfluxQLQueryService service)

Method Detail

query

@Nonnull
public InfluxQLQueryResult query(@Nonnull
                                          InfluxQLQuery influxQlQuery)

Description copied from interface: InfluxQLQueryApi

Executes an InfluxQL query against the legacy endpoint.

Specified by:

query in interface InfluxQLQueryApi

Parameters:

influxQlQuery - the query

Returns:

the result

query

@Nonnull
public InfluxQLQueryResult query(@Nonnull
                                          InfluxQLQuery influxQlQuery,
                                          @Nullable
                                          InfluxQLQueryResult.Series.ValueExtractor valueExtractor)

Description copied from interface: InfluxQLQueryApi

Executes an InfluxQL query against the legacy endpoint. The value extractor is called for each resulting column to convert the string value returned by query into a custom type.

Example:

 InfluxQLQueryResult result = influxQLQueryApi.query(
             new InfluxQLQuery("SELECT FIRST(\"free\") FROM \"influxql\"", DATABASE_NAME)
                     .setPrecision(InfluxQLQuery.InfluxQLPrecision.SECONDS),
             (columnName, rawValue, resultIndex, seriesName) -> {
                 switch (columnName) {
                     case "time":
                         return Instant.ofEpochSecond(Long.parseLong(rawValue));
                     case "first":
                         return new BigDecimal(rawValue);
                     default:
                         throw new IllegalArgumentException("unexpected column " + columnName);
                 }
             }
     );
 

Specified by:

query in interface InfluxQLQueryApi

Parameters:

influxQlQuery - the query

valueExtractor - a callback, to convert column values

Returns:

the result