class Metric

class Metric extends \Google\Protobuf\Internal\Message {
    
    /**
     * name of the metric.
     *
     * Generated from protobuf field <code>string name = 1;</code>
     */
    protected $name = '';
    
    /**
     * description of the metric, which can be used in documentation.
     *
     * Generated from protobuf field <code>string description = 2;</code>
     */
    protected $description = '';
    
    /**
     * unit in which the metric value is reported. Follows the format
     * described by http://unitsofmeasure.org/ucum.html.
     *
     * Generated from protobuf field <code>string unit = 3;</code>
     */
    protected $unit = '';
    
    /**
     * Additional metadata attributes that describe the metric. [Optional].
     * Attributes are non-identifying.
     * Consumers SHOULD NOT need to be aware of these attributes.
     * These attributes MAY be used to encode information allowing
     * for lossless roundtrip translation to / from another data model.
     * Attribute keys MUST be unique (it is not allowed to have more than one
     * attribute with the same key).
     *
     * Generated from protobuf field <code>repeated .opentelemetry.proto.common.v1.KeyValue metadata = 12;</code>
     */
    private $metadata;
    protected $data;
    
    /**
     * Constructor.
     *
     * @param array $data {
     *     Optional. Data for populating the Message object.
     *
     *     @type string $name
     *           name of the metric.
     *     @type string $description
     *           description of the metric, which can be used in documentation.
     *     @type string $unit
     *           unit in which the metric value is reported. Follows the format
     *           described by http://unitsofmeasure.org/ucum.html.
     *     @type \Opentelemetry\Proto\Metrics\V1\Gauge $gauge
     *     @type \Opentelemetry\Proto\Metrics\V1\Sum $sum
     *     @type \Opentelemetry\Proto\Metrics\V1\Histogram $histogram
     *     @type \Opentelemetry\Proto\Metrics\V1\ExponentialHistogram $exponential_histogram
     *     @type \Opentelemetry\Proto\Metrics\V1\Summary $summary
     *     @type \Opentelemetry\Proto\Common\V1\KeyValue[]|\Google\Protobuf\Internal\RepeatedField $metadata
     *           Additional metadata attributes that describe the metric. [Optional].
     *           Attributes are non-identifying.
     *           Consumers SHOULD NOT need to be aware of these attributes.
     *           These attributes MAY be used to encode information allowing
     *           for lossless roundtrip translation to / from another data model.
     *           Attribute keys MUST be unique (it is not allowed to have more than one
     *           attribute with the same key).
     * }
     */
    public function __construct($data = NULL) {
        \GPBMetadata\Opentelemetry\Proto\Metrics\V1\Metrics::initOnce();
        parent::__construct($data);
    }
    
    /**
     * name of the metric.
     *
     * Generated from protobuf field <code>string name = 1;</code>
     * @return string
     */
    public function getName() {
        return $this->name;
    }
    
    /**
     * name of the metric.
     *
     * Generated from protobuf field <code>string name = 1;</code>
     * @param string $var
     * @return $this
     */
    public function setName($var) {
        GPBUtil::checkString($var, True);
        $this->name = $var;
        return $this;
    }
    
    /**
     * description of the metric, which can be used in documentation.
     *
     * Generated from protobuf field <code>string description = 2;</code>
     * @return string
     */
    public function getDescription() {
        return $this->description;
    }
    
    /**
     * description of the metric, which can be used in documentation.
     *
     * Generated from protobuf field <code>string description = 2;</code>
     * @param string $var
     * @return $this
     */
    public function setDescription($var) {
        GPBUtil::checkString($var, True);
        $this->description = $var;
        return $this;
    }
    
    /**
     * unit in which the metric value is reported. Follows the format
     * described by http://unitsofmeasure.org/ucum.html.
     *
     * Generated from protobuf field <code>string unit = 3;</code>
     * @return string
     */
    public function getUnit() {
        return $this->unit;
    }
    
    /**
     * unit in which the metric value is reported. Follows the format
     * described by http://unitsofmeasure.org/ucum.html.
     *
     * Generated from protobuf field <code>string unit = 3;</code>
     * @param string $var
     * @return $this
     */
    public function setUnit($var) {
        GPBUtil::checkString($var, True);
        $this->unit = $var;
        return $this;
    }
    
    /**
     * Generated from protobuf field <code>.opentelemetry.proto.metrics.v1.Gauge gauge = 5;</code>
     * @return \Opentelemetry\Proto\Metrics\V1\Gauge|null
     */
    public function getGauge() {
        return $this->readOneof(5);
    }
    public function hasGauge() {
        return $this->hasOneof(5);
    }
    
    /**
     * Generated from protobuf field <code>.opentelemetry.proto.metrics.v1.Gauge gauge = 5;</code>
     * @param \Opentelemetry\Proto\Metrics\V1\Gauge $var
     * @return $this
     */
    public function setGauge($var) {
        GPBUtil::checkMessage($var, \Opentelemetry\Proto\Metrics\V1\Gauge::class);
        $this->writeOneof(5, $var);
        return $this;
    }
    
    /**
     * Generated from protobuf field <code>.opentelemetry.proto.metrics.v1.Sum sum = 7;</code>
     * @return \Opentelemetry\Proto\Metrics\V1\Sum|null
     */
    public function getSum() {
        return $this->readOneof(7);
    }
    public function hasSum() {
        return $this->hasOneof(7);
    }
    
    /**
     * Generated from protobuf field <code>.opentelemetry.proto.metrics.v1.Sum sum = 7;</code>
     * @param \Opentelemetry\Proto\Metrics\V1\Sum $var
     * @return $this
     */
    public function setSum($var) {
        GPBUtil::checkMessage($var, \Opentelemetry\Proto\Metrics\V1\Sum::class);
        $this->writeOneof(7, $var);
        return $this;
    }
    
    /**
     * Generated from protobuf field <code>.opentelemetry.proto.metrics.v1.Histogram histogram = 9;</code>
     * @return \Opentelemetry\Proto\Metrics\V1\Histogram|null
     */
    public function getHistogram() {
        return $this->readOneof(9);
    }
    public function hasHistogram() {
        return $this->hasOneof(9);
    }
    
    /**
     * Generated from protobuf field <code>.opentelemetry.proto.metrics.v1.Histogram histogram = 9;</code>
     * @param \Opentelemetry\Proto\Metrics\V1\Histogram $var
     * @return $this
     */
    public function setHistogram($var) {
        GPBUtil::checkMessage($var, \Opentelemetry\Proto\Metrics\V1\Histogram::class);
        $this->writeOneof(9, $var);
        return $this;
    }
    
    /**
     * Generated from protobuf field <code>.opentelemetry.proto.metrics.v1.ExponentialHistogram exponential_histogram = 10;</code>
     * @return \Opentelemetry\Proto\Metrics\V1\ExponentialHistogram|null
     */
    public function getExponentialHistogram() {
        return $this->readOneof(10);
    }
    public function hasExponentialHistogram() {
        return $this->hasOneof(10);
    }
    
    /**
     * Generated from protobuf field <code>.opentelemetry.proto.metrics.v1.ExponentialHistogram exponential_histogram = 10;</code>
     * @param \Opentelemetry\Proto\Metrics\V1\ExponentialHistogram $var
     * @return $this
     */
    public function setExponentialHistogram($var) {
        GPBUtil::checkMessage($var, \Opentelemetry\Proto\Metrics\V1\ExponentialHistogram::class);
        $this->writeOneof(10, $var);
        return $this;
    }
    
    /**
     * Generated from protobuf field <code>.opentelemetry.proto.metrics.v1.Summary summary = 11;</code>
     * @return \Opentelemetry\Proto\Metrics\V1\Summary|null
     */
    public function getSummary() {
        return $this->readOneof(11);
    }
    public function hasSummary() {
        return $this->hasOneof(11);
    }
    
    /**
     * Generated from protobuf field <code>.opentelemetry.proto.metrics.v1.Summary summary = 11;</code>
     * @param \Opentelemetry\Proto\Metrics\V1\Summary $var
     * @return $this
     */
    public function setSummary($var) {
        GPBUtil::checkMessage($var, \Opentelemetry\Proto\Metrics\V1\Summary::class);
        $this->writeOneof(11, $var);
        return $this;
    }
    
    /**
     * Additional metadata attributes that describe the metric. [Optional].
     * Attributes are non-identifying.
     * Consumers SHOULD NOT need to be aware of these attributes.
     * These attributes MAY be used to encode information allowing
     * for lossless roundtrip translation to / from another data model.
     * Attribute keys MUST be unique (it is not allowed to have more than one
     * attribute with the same key).
     *
     * Generated from protobuf field <code>repeated .opentelemetry.proto.common.v1.KeyValue metadata = 12;</code>
     * @return \Google\Protobuf\Internal\RepeatedField
     */
    public function getMetadata() {
        return $this->metadata;
    }
    
    /**
     * Additional metadata attributes that describe the metric. [Optional].
     * Attributes are non-identifying.
     * Consumers SHOULD NOT need to be aware of these attributes.
     * These attributes MAY be used to encode information allowing
     * for lossless roundtrip translation to / from another data model.
     * Attribute keys MUST be unique (it is not allowed to have more than one
     * attribute with the same key).
     *
     * Generated from protobuf field <code>repeated .opentelemetry.proto.common.v1.KeyValue metadata = 12;</code>
     * @param \Opentelemetry\Proto\Common\V1\KeyValue[]|\Google\Protobuf\Internal\RepeatedField $var
     * @return $this
     */
    public function setMetadata($var) {
        $arr = GPBUtil::checkRepeatedField($var, \Google\Protobuf\Internal\GPBType::MESSAGE, \Opentelemetry\Proto\Common\V1\KeyValue::class);
        $this->metadata = $arr;
        return $this;
    }
    
    /**
     * @return string
     */
    public function getData() {
        return $this->whichOneof("data");
    }

}