io.vertx.ext.consul

## Class PreparedQueryDefinition

- java.lang.Object
- - io.vertx.ext.consul.PreparedQueryDefinition

-     public class PreparedQueryDefinition
      extends Object

  Defines a prepared query.
  Author:
    Ruslan Sennov

- - ### Constructor Summary

    Constructors
    Constructor and Description
    `PreparedQueryDefinition()` Default constructor
    `PreparedQueryDefinition(JsonObject json)` Constructor from JSON

  - ### Method Summary

    All Methods Instance Methods Concrete Methods
    Modifier and Type | Method and Description
    --- | ---
    `List<String>` | `getDcs()` Specifies a fixed list of remote datacenters to forward the query to if there are no healthy nodes in the local datacenter.
    `String` | `getDnsTtl()` Get the TTL duration when query results are served over DNS.
    `String` | `getId()` Get ID of the query
    `Map<String,String>` | `getMeta()` Get a list of user-defined key/value pairs that will be used for filtering the query results to nodes with the given metadata values present.
    `String` | `getName()` Get an optional friendly name that can be used to execute a query instead of using its ID
    `int` | `getNearestN()` Specifies that the query will be forwarded to up to NearestN other datacenters based on their estimated network round trip time using Network Coordinates from the WAN gossip pool.
    `boolean` | `getPassing()` Specifies the behavior of the query's health check filtering.
    `String` | `getService()` Get the name of the service to query
    `String` | `getSession()` Get the ID of an existing session.
    `List<String>` | `getTags()` Get a list of service tags to filter the query results.
    `String` | `getTemplateRegexp()` Get regular expression which is used to extract fields from the entire name, once this template is selected.
    `String` | `getTemplateType()` The template type, which must be `name_prefix_match`.
    `String` | `getToken()` Get the ACL token to use each time the query is executed.
    `PreparedQueryDefinition` | `setDcs(List<String> dcs)` Specifies a fixed list of remote datacenters to forward the query to if there are no healthy nodes in the local datacenter.
    `PreparedQueryDefinition` | `setDnsTtl(String dnsTtl)` Set the TTL duration when query results are served over DNS.
    `PreparedQueryDefinition` | `setId(String id)` Set ID of the query, always generated by Consul
    `PreparedQueryDefinition` | `setMeta(Map<String,String> meta)` Set a list of user-defined key/value pairs that will be used for filtering the query results to nodes with the given metadata values present.
    `PreparedQueryDefinition` | `setName(String name)` Set an optional friendly name that can be used to execute a query instead of using its ID
    `PreparedQueryDefinition` | `setNearestN(int nearestN)` Specifies that the query will be forwarded to up to NearestN other datacenters based on their estimated network round trip time using Network Coordinates from the WAN gossip pool.
    `PreparedQueryDefinition` | `setPassing(boolean passing)` Specifies the behavior of the query's health check filtering.
    `PreparedQueryDefinition` | `setService(String service)` Set the name of the service to query
    `PreparedQueryDefinition` | `setSession(String session)` Set the ID of an existing session.
    `PreparedQueryDefinition` | `setTags(List<String> tags)` Set a list of service tags to filter the query results.
    `PreparedQueryDefinition` | `setTemplateRegexp(String templateRegexp)` Set regular expression which is used to extract fields from the entire name, once this template is selected.
    `PreparedQueryDefinition` | `setTemplateType(String templateType)` The template type, which must be `name_prefix_match`.
    `PreparedQueryDefinition` | `setToken(String token)` Set the ACL token to use each time the query is executed.
    `JsonObject` | `toJson()` Convert to JSON

    - ### Methods inherited from class java.lang.Object

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

- - ### Constructor Detail

    - #### PreparedQueryDefinition

          public PreparedQueryDefinition()

      Default constructor

    - #### PreparedQueryDefinition

          public PreparedQueryDefinition(JsonObject json)

      Constructor from JSON
      Parameters:
        `json` - the JSON

  - ### Method Detail

    - #### toJson

          public JsonObject toJson()

      Convert to JSON
      Returns:
        the JSON

    - #### getId

          public String getId()

      Get ID of the query
      Returns:
        ID of the query

    - #### setId

          public PreparedQueryDefinition setId(String id)

      Set ID of the query, always generated by Consul
      Parameters:
        `id` - ID of the query
      Returns:
        reference to this, for fluency

    - #### getName

          public String getName()

      Get an optional friendly name that can be used to execute a query instead of using its ID
      Returns:
        name of the query

    - #### setName

          public PreparedQueryDefinition setName(String name)

      Set an optional friendly name that can be used to execute a query instead of using its ID
      Parameters:
        `name` - name of the query
      Returns:
        reference to this, for fluency

    - #### getSession

          public String getSession()

      Get the ID of an existing session. This provides a way to automatically remove a prepared query when the given session is invalidated. If not given the prepared query must be manually removed when no longer needed.
      Returns:
        id of session

    - #### setSession

          public PreparedQueryDefinition setSession(String session)

      Set the ID of an existing session. This provides a way to automatically remove a prepared query when the given session is invalidated. If not given the prepared query must be manually removed when no longer needed.
      Parameters:
        `session` - id of session
      Returns:
        reference to this, for fluency

    - #### getService

          public String getService()

      Get the name of the service to query
      Returns:
        service name

    - #### setService

          public PreparedQueryDefinition setService(String service)

      Set the name of the service to query
      Parameters:
        `service` - service name
      Returns:
        reference to this, for fluency

    - #### getToken

          public String getToken()

      Get the ACL token to use each time the query is executed. This allows queries to be executed by clients with lesser or even no ACL Token, so this should be used with care.
      Returns:
        the ACL token

    - #### setToken

          public PreparedQueryDefinition setToken(String token)

      Set the ACL token to use each time the query is executed. This allows queries to be executed by clients with lesser or even no ACL Token, so this should be used with care.
      Parameters:
        `token` - the ACL token
      Returns:
        reference to this, for fluency

    - #### getDnsTtl

          public String getDnsTtl()

      Get the TTL duration when query results are served over DNS. If this is specified, it will take precedence over any Consul agent-specific configuration.
      Returns:
        the TTL duration

    - #### setDnsTtl

          public PreparedQueryDefinition setDnsTtl(String dnsTtl)

      Set the TTL duration when query results are served over DNS. If this is specified, it will take precedence over any Consul agent-specific configuration.
      Parameters:
        `dnsTtl` - the TTL duration
      Returns:
        reference to this, for fluency

    - #### getNearestN

          public int getNearestN()

      Specifies that the query will be forwarded to up to NearestN other datacenters based on their estimated network round trip time using Network Coordinates from the WAN gossip pool. The median round trip time from the server handling the query to the servers in the remote datacenter is used to determine the priority.
      Returns:
        number of nearest datacenters to query

    - #### setNearestN

          public PreparedQueryDefinition setNearestN(int nearestN)

      Specifies that the query will be forwarded to up to NearestN other datacenters based on their estimated network round trip time using Network Coordinates from the WAN gossip pool. The median round trip time from the server handling the query to the servers in the remote datacenter is used to determine the priority.
      Parameters:
        `nearestN` - number of nearest datacenters to query
      Returns:
        reference to this, for fluency

    - #### getDcs

          public List<String> getDcs()

      Specifies a fixed list of remote datacenters to forward the query to if there are no healthy nodes in the local datacenter. Datacenters are queried in the order given in the list. If this option is combined with NearestN, then the NearestN queries will be performed first, followed by the list given by Datacenters. A given datacenter will only be queried one time during a failover, even if it is selected by both NearestN and is listed in Datacenters.
      Returns:
        the list of remote datacenters

    - #### setDcs

          public PreparedQueryDefinition setDcs(List<String> dcs)

      Specifies a fixed list of remote datacenters to forward the query to if there are no healthy nodes in the local datacenter. Datacenters are queried in the order given in the list. If this option is combined with NearestN, then the NearestN queries will be performed first, followed by the list given by Datacenters. A given datacenter will only be queried one time during a failover, even if it is selected by both NearestN and is listed in Datacenters.
      Parameters:
        `dcs` - the list of remote datacenters
      Returns:
        reference to this, for fluency

    - #### getTags

          public List<String> getTags()

      Get a list of service tags to filter the query results. For a service to pass the tag filter it must have all of the required tags, and none of the excluded tags (prefixed with `!`).
      Returns:
        list of service tags

    - #### setTags

          public PreparedQueryDefinition setTags(List<String> tags)

      Set a list of service tags to filter the query results. For a service to pass the tag filter it must have all of the required tags, and none of the excluded tags (prefixed with `!`).
      Parameters:
        `tags` - list of service tags
      Returns:
        reference to this, for fluency

    - #### getPassing

          public boolean getPassing()

      Specifies the behavior of the query's health check filtering. If this is set to false, the results will include nodes with checks in the passing as well as the warning states. If this is set to true, only nodes with checks in the passing state will be returned.
      Returns:
        the passing flag

    - #### setPassing

          public PreparedQueryDefinition setPassing(boolean passing)

      Specifies the behavior of the query's health check filtering. If this is set to false, the results will include nodes with checks in the passing as well as the warning states. If this is set to true, only nodes with checks in the passing state will be returned.
      Parameters:
        `passing` - the passing flag
      Returns:
        reference to this, for fluency

    - #### getMeta

          public Map<String,String> getMeta()

      Get a list of user-defined key/value pairs that will be used for filtering the query results to nodes with the given metadata values present.
      Returns:
        list of key/value pairs

    - #### setMeta

          public PreparedQueryDefinition setMeta(Map<String,String> meta)

      Set a list of user-defined key/value pairs that will be used for filtering the query results to nodes with the given metadata values present.
      Parameters:
        `meta` - list of key/value pairs
      Returns:
        reference to this, for fluency

    - #### getTemplateType

          public String getTemplateType()

      The template type, which must be `name_prefix_match`. This means that the template will apply to any query lookup with a name whose prefix matches the Name field of the template.
      Returns:
        the query type
      See Also:
        Prepared Query Templates endpoint

    - #### setTemplateType

          public PreparedQueryDefinition setTemplateType(String templateType)

      The template type, which must be `name_prefix_match`. This means that the template will apply to any query lookup with a name whose prefix matches the Name field of the template.
      Parameters:
        `templateType` - the query type
      Returns:
        reference to this, for fluency
      See Also:
        Prepared Query Templates endpoint

    - #### getTemplateRegexp

          public String getTemplateRegexp()

      Get regular expression which is used to extract fields from the entire name, once this template is selected.
      Returns:
        a regular expression
      See Also:
        Prepared Query Templates endpoint

    - #### setTemplateRegexp

          public PreparedQueryDefinition setTemplateRegexp(String templateRegexp)

      Set regular expression which is used to extract fields from the entire name, once this template is selected.
      Parameters:
        `templateRegexp` - a regular expression
      Returns:
        reference to this, for fluency
      See Also:
        Prepared Query Templates endpoint

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