com.github.rahulsom.grooves.grails.GormJoinSupport Maven / Gradle / Ivy

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Integration with Grails' GORM API
There is a newer version: 0.6.1
package com.github.rahulsom.grooves.grails;

import com.github.rahulsom.grooves.api.AggregateType;
import com.github.rahulsom.grooves.api.events.BaseEvent;
import com.github.rahulsom.grooves.api.events.DisjoinEvent;
import com.github.rahulsom.grooves.api.events.JoinEvent;
import com.github.rahulsom.grooves.api.snapshots.Join;
import com.github.rahulsom.grooves.queries.JoinSupport;
import com.github.rahulsom.grooves.queries.internal.BaseQuery;
import com.github.rahulsom.grooves.queries.internal.Executor;
import com.github.rahulsom.grooves.queries.internal.JoinExecutor;
import org.grails.datastore.gorm.GormEntity;
import rx.Observable;

import java.util.Date;
import java.util.List;

/**
 * Gorm implementation of Join Support.
 *
 * @param          The Aggregate this join represents
 * @param            The type for the {@link EventT}'s id field
 * @param              The base type for events that apply to {@link AggregateT}
 * @param         The type for the join's id field
 * @param  The type for the other id of aggregate that {@link AggregateT} joins
 *                             to
 * @param    The type for the other aggregate that {@link AggregateT} joins to
 * @param           The type of Snapshot that is computed
 * @param          The type of the Join Event
 * @param       The type of the disjoin event
 *
 * @author Rahul Somasunderam
 * @deprecated Use {@link BlockingEventSource} and {@link BlockingSnapshotSource} instead
 */
@Deprecated
public interface GormJoinSupport<
        AggregateIdT,
        AggregateT extends AggregateType & GormEntity,
        EventIdT,
        EventT extends BaseEvent & GormEntity,
        JoinedAggregateIdT,
        JoinedAggregateT extends AggregateType & GormEntity,
        SnapshotIdT,
        SnapshotT extends Join & GormEntity,
        JoinEventT extends JoinEvent,
        DisjoinEventT extends DisjoinEvent,
        QueryT extends BaseQuery & Join
        > extends
        JoinSupport,
        BlockingEventSource,
        BlockingSnapshotSource {

    @Override
    default Executor getExecutor() {
        //noinspection unchecked
        return new JoinExecutor<>(getJoinEventClass(), getDisjoinEventClass());
    }

    @Override
    default Observable findEventsBefore(EventT event) {
        return JoinSupport.super.findEventsBefore(event);
    }

    @Override
    default Observable getSnapshot(long maxPosition, AggregateT aggregate) {
        return BlockingSnapshotSource.super.getSnapshot(maxPosition, aggregate);
    }

    @Override
    default Observable getSnapshot(Date maxTimestamp, AggregateT aggregate) {
        return BlockingSnapshotSource.super.getSnapshot(maxTimestamp, aggregate);
    }

    @Override
    default Observable getUncomputedEvents(
            AggregateT aggregate, SnapshotT lastSnapshot, long version) {
        return BlockingEventSource.super.getUncomputedEvents(aggregate, lastSnapshot, version);
    }

    @Override
    default Observable getUncomputedEvents(
            AggregateT aggregate, SnapshotT lastSnapshot, Date snapshotTime) {
        return BlockingEventSource.super.getUncomputedEvents(aggregate, lastSnapshot, snapshotTime);
    }

}