In-memory ElasticSearch Index/Query service relies on the FileConfig Library to decide where it stores its transaction logs as there’s no in-memory transaction log implementation in ElasticSearch.

Assembly is done using the provided Assembler:

new ESMemoryIndexQueryAssembler().withConfig( configModule, configVisibility ).assemble( module );

Filesystem based ElasticSearch Index/Query service relies on the FileConfig Library to decide where it stores its index data, transaction logs etc…

Assembly is done using the provided Assembler:

new ESFilesystemIndexQueryAssembler().withConfig( configModule, configVisibility ).assemble( module );

Here are the configuration properties for both the in-memory and on-filesystem ElasticSearch Index/Query services:

public interface ElasticSearchConfiguration
        extends ConfigurationComposite
{

    /**
     * Cluster name.
     * Defaults to 'qi4j_cluster'.
     */
    @Optional Property<String> clusterName();

    /**
     * Index name.
     * Defaults to 'qi4j_index'.
     */
    @Optional Property<String> index();

    /**
     * Set to true to index non aggregated associations as if they were aggregated.
     * WARN: Don't use this if your domain model contains circular dependencies.
     * Defaults to 'FALSE'.
     */
    @UseDefaults Property<Boolean> indexNonAggregatedAssociations();

}

All configuration properties are defaulted meaning that you can use ElasticSearch Index/Query service without configuration.

Assembly is done using the provided Assembler:

new ESClusterIndexQueryAssembler().withConfig( configModule, configVisibility ).assemble( module );

Here are the configuration properties for the clustered ElasticSearch Index/Query service. Note that it inherits the properties defined in the in-memory or on-filesystem configuration, see above.

public interface ElasticSearchClusterConfiguration
        extends ElasticSearchConfiguration
{

    /**
     * Coma separated list of nodes host:port.
     * Defaults to '127.0.0.1:9300'.
     */
    @Optional Property<String> nodes();

    /**
     * Allows client to sniff the rest of the cluster, and add those into its list of machines to use.
     * In this case, note that the ip addresses used will be the ones that the other nodes were started
     * with (the “publish” address).
     * Defaults to FALSE.
     */
    @UseDefaults Property<Boolean> clusterSniff();

    /**
     * Set to true to ignore cluster name validation of connected nodes.
     * Defaults to FALSE.
     */
    @UseDefaults Property<Boolean> ignoreClusterName();

    /**
     * The time to wait for a ping response from a node.
     * Defaults to 5s.
     */
    @Optional Property<String> pingTimeout();

    /**
     * How often to sample / ping the nodes listed and connected.
     * Defaults to 5s.
     */
    @Optional Property<String> samplerInterval();

}

Again, all configuration properties are defaulted meaning that you can use ElasticSearch Index/Query service without configuration.