com.couchbase.client.java.view.AsyncSpatialViewRow Maven / Gradle / Ivy

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/**
 * Copyright (C) 2014 Couchbase, Inc.
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALING
 * IN THE SOFTWARE.
 */
package com.couchbase.client.java.view;

import com.couchbase.client.core.BackpressureException;
import com.couchbase.client.core.annotations.InterfaceAudience;
import com.couchbase.client.core.annotations.InterfaceStability;
import com.couchbase.client.java.document.Document;
import com.couchbase.client.java.document.JsonDocument;
import com.couchbase.client.java.document.json.JsonArray;
import com.couchbase.client.java.document.json.JsonObject;
import com.couchbase.client.java.error.TranscodingException;
import rx.Observable;

/**
 * Represents a row fetched from the Spatial {@link View}.
 *
 * The row itself contains fixed properties returned, but is also able to - on demand - load the full document if
 * instructed through the {@link #document()} methods.
 *
 * @author Michael Nitschinger
 * @since 2.1.0
 */
@InterfaceStability.Committed
@InterfaceAudience.Public
public interface AsyncSpatialViewRow {

    /**
     * The id of the document, if not reduced.
     *
     * @return the id of the document.
     */
    String id();

    /**
     * The key of the row.
     *
     * @return the key.
     */
    JsonArray key();

    /**
     * The value of the row.
     *
     * The object can be any valid JSON object, including {@link JsonArray} or {@link JsonObject}.
     *
     * @return the value if set.
     */
    Object value();

    /**
     * The geometry of the row, if emitted.
     *
     * Note that the geometry is only set if GeoJSON is emitted by the spatial view.
     *
     * @return the GeoJSON geometry if set.
     */
    JsonObject geometry();

    /**
     * Load the underlying document.
     *
     * The {@link Observable} can error under the following conditions:
     *
     *  - {@link BackpressureException}: If the incoming request rate is too high to be processed.
     *  - {@link IllegalStateException}: If the view is reduced and the ID is null.
     *  - {@link TranscodingException}: If the response document could not be decoded.
     *
     * @return a {@link Observable} containing the document once loaded.
     */
    Observable document();

    /**
     * Load the underlying document.
     *
     * The {@link Observable} can error under the following conditions:
     *
     *  - {@link BackpressureException}: If the incoming request rate is too high to be processed.
     *  - {@link IllegalStateException}: If the view is reduced and the ID is null.
     *  - {@link TranscodingException}: If the response document could not be decoded.
     *
     * @param target the target class to decode into.
     * @return a {@link Observable} containing the document once loaded.
     */
    > Observable document(final Class target);

}