com.hazelcast.core

## Interface Member

- All Superinterfaces:
    DataSerializable, Endpoint
  All Known Implementing Classes:
    AbstractMember, MemberImpl

      public interface Member
      extends DataSerializable, Endpoint

  Cluster member interface. The default implementation `MemberImpl` violates the Java Serialization contract. It should be serialized/deserialized by Hazelcast.
  See Also:
    `Cluster`, `MembershipListener`

- - ### Method Summary

    All Methods Instance Methods Abstract Methods Deprecated Methods
    Modifier and Type | Method and Description
    --- | ---
    `Address` | `getAddress()` Returns the Address of this Member.
    `Map<String,Object>` | `getAttributes()` Returns configured attributes for this member. This method might not be available on all native clients.
    `Boolean` | `getBooleanAttribute(String key)` Returns the value of the specified key for this member, or null if the value is undefined.
    `Byte` | `getByteAttribute(String key)` Returns the value of the specified key for this member or null if the value is undefined.
    `Double` | `getDoubleAttribute(String key)` Returns the value of the specified key for this member or null if value is undefined.
    `Float` | `getFloatAttribute(String key)` Returns the value of the specified key for this member or null if value is undefined.
    `InetSocketAddress` | `getInetSocketAddress()` Deprecated. use `getSocketAddress()` instead
    `Integer` | `getIntAttribute(String key)` Returns the value of the specified key for this member or null if value is undefined.
    `Long` | `getLongAttribute(String key)` Returns the value of the specified key for this member or null if value is undefined.
    `Short` | `getShortAttribute(String key)` Returns the value of the specified key for this member or null if value is undefined.
    `InetSocketAddress` | `getSocketAddress()` Returns the socket address of this member.
    `String` | `getStringAttribute(String key)` Returns the value of the specified key for this member or null if value is undefined.
    `String` | `getUuid()` Returns the UUID of this member.
    `MemberVersion` | `getVersion()` Returns the Hazelcast codebase version of this member; this may or may not be different from the version reported by `Cluster.getClusterVersion()`, for example when a node with a different codebase version is added to an existing cluster.
    `boolean` | `isLiteMember()` Returns true if this member is a lite member.
    `boolean` | `localMember()` Returns true if this member is the local member.
    `void` | `removeAttribute(String key)` Removes a key-value pair attribute for this member if given key was previously assigned as an attribute. If key wasn't assigned to a value this method does nothing.
    `void` | `setBooleanAttribute(String key, boolean value)` Defines a key-value pair boolean attribute for this member that is available to other cluster members.
    `void` | `setByteAttribute(String key, byte value)` Defines a key-value pair byte attribute for this member available to other cluster members.
    `void` | `setDoubleAttribute(String key, double value)` Defines a key-value pair double attribute for this member available to other cluster members.
    `void` | `setFloatAttribute(String key, float value)` Defines a key-value pair float attribute for this member available to other cluster members.
    `void` | `setIntAttribute(String key, int value)` Defines a key-value pair int attribute for this member available to other cluster members.
    `void` | `setLongAttribute(String key, long value)` Defines a key-value pair long attribute for this member available to other cluster members.
    `void` | `setShortAttribute(String key, short value)` Defines a key-value pair short attribute for this member available to other cluster members.
    `void` | `setStringAttribute(String key, String value)` Defines a key-value pair string attribute for this member available to other cluster members.

    - ### Methods inherited from interface com.hazelcast.nio.serialization.DataSerializable

      `readData, writeData`

- - ### Method Detail

    - #### localMember

          boolean localMember()

      Returns true if this member is the local member.
      Returns:
        `true` if this member is the local member, `false` otherwise.

    - #### isLiteMember

          boolean isLiteMember()

      Returns true if this member is a lite member.
      Returns:
        `true` if this member is a lite member, `false` otherwise. Lite members do not own any partition.

    - #### getAddress

          Address getAddress()

      Returns the Address of this Member.
      Returns:
        the address.
      Since:
        3.6

    - #### getInetSocketAddress

          @Deprecated
          InetSocketAddress getInetSocketAddress()

      Deprecated. use `getSocketAddress()` instead
      Returns the InetSocketAddress of this member.
      Returns:
        InetSocketAddress of this member

    - #### getSocketAddress

          InetSocketAddress getSocketAddress()

      Returns the socket address of this member.
      Specified by:
        `getSocketAddress` in interface `Endpoint`
      Returns:
        the socket address of this member

    - #### getUuid

          String getUuid()

      Returns the UUID of this member.
      Specified by:
        `getUuid` in interface `Endpoint`
      Returns:
        the UUID of this member.

    - #### getAttributes

          Map<String,Object> getAttributes()

      Returns configured attributes for this member.
      This method might not be available on all native clients.
      Returns:
        configured attributes for this member.
      Since:
        3.2

    - #### getStringAttribute

          String getStringAttribute(String key)

      Returns the value of the specified key for this member or null if value is undefined.
      Parameters:
        `key` - The key to lookup.
      Returns:
        The value for this member key.
      Since:
        3.2

    - #### setStringAttribute

          void setStringAttribute(String key,
                                  String value)

      Defines a key-value pair string attribute for this member available to other cluster members.
      Parameters:
        `key` - The key for this property.
        `value` - The value that corresponds to this attribute and this member.
      Since:
        3.2

    - #### getBooleanAttribute

          Boolean getBooleanAttribute(String key)

      Returns the value of the specified key for this member, or null if the value is undefined.
      Parameters:
        `key` - The key to look up
      Returns:
        the value for this member key
      Since:
        3.2

    - #### setBooleanAttribute

          void setBooleanAttribute(String key,
                                   boolean value)

      Defines a key-value pair boolean attribute for this member that is available to other cluster members.
      Parameters:
        `key` - The key for this property.
        `value` - The value that corresponds to this attribute and this member.
      Since:
        3.2

    - #### getByteAttribute

          Byte getByteAttribute(String key)

      Returns the value of the specified key for this member or null if the value is undefined.
      Parameters:
        `key` - The key to look up.
      Returns:
        The value for this member key.
      Since:
        3.2

    - #### setByteAttribute

          void setByteAttribute(String key,
                                byte value)

      Defines a key-value pair byte attribute for this member available to other cluster members.
      Parameters:
        `key` - The key for this property.
        `value` - The value that corresponds to this attribute and this member.
      Since:
        3.2

    - #### getShortAttribute

          Short getShortAttribute(String key)

      Returns the value of the specified key for this member or null if value is undefined.
      Parameters:
        `key` - The key to look up.
      Returns:
        The value for this member key.
      Since:
        3.2

    - #### setShortAttribute

          void setShortAttribute(String key,
                                 short value)

      Defines a key-value pair short attribute for this member available to other cluster members.
      Parameters:
        `key` - The key for this property.
        `value` - The value that corresponds to this attribute and this member.
      Since:
        3.2

    - #### getIntAttribute

          Integer getIntAttribute(String key)

      Returns the value of the specified key for this member or null if value is undefined.
      Parameters:
        `key` - The key to look up.
      Returns:
        The value for this members key.
      Since:
        3.2

    - #### setIntAttribute

          void setIntAttribute(String key,
                               int value)

      Defines a key-value pair int attribute for this member available to other cluster members.
      Parameters:
        `key` - The key for this property.
        `value` - The value that corresponds to this attribute and this member.
      Since:
        3.2

    - #### getLongAttribute

          Long getLongAttribute(String key)

      Returns the value of the specified key for this member or null if value is undefined.
      Parameters:
        `key` - The key to look up.
      Returns:
        The value for this members key.
      Since:
        3.2

    - #### setLongAttribute

          void setLongAttribute(String key,
                                long value)

      Defines a key-value pair long attribute for this member available to other cluster members.
      Parameters:
        `key` - The key for this property.
        `value` - The value that corresponds to this attribute and this member.
      Since:
        3.2

    - #### getFloatAttribute

          Float getFloatAttribute(String key)

      Returns the value of the specified key for this member or null if value is undefined.
      Parameters:
        `key` - The key to look up.
      Returns:
        The value for this member key.
      Since:
        3.2

    - #### setFloatAttribute

          void setFloatAttribute(String key,
                                 float value)

      Defines a key-value pair float attribute for this member available to other cluster members.
      Parameters:
        `key` - The key for this property.
        `value` - The value that corresponds to this attribute and this member.
      Since:
        3.2

    - #### getDoubleAttribute

          Double getDoubleAttribute(String key)

      Returns the value of the specified key for this member or null if value is undefined.
      Parameters:
        `key` - The key to look up.
      Returns:
        The value for this members key.
      Since:
        3.2

    - #### setDoubleAttribute

          void setDoubleAttribute(String key,
                                  double value)

      Defines a key-value pair double attribute for this member available to other cluster members.
      Parameters:
        `key` - The key for this property.
        `value` - The value that corresponds to this attribute and this member.
      Since:
        3.2

    - #### removeAttribute

          void removeAttribute(String key)

      Removes a key-value pair attribute for this member if given key was previously assigned as an attribute.
      If key wasn't assigned to a value this method does nothing.
      Parameters:
        `key` - The key to be deleted from the member attributes
      Since:
        3.2

    - #### getVersion

          MemberVersion getVersion()

      Returns the Hazelcast codebase version of this member; this may or may not be different from the version reported by `Cluster.getClusterVersion()`, for example when a node with a different codebase version is added to an existing cluster. See the documentation for `Cluster.getClusterVersion()` for a more thorough discussion of `Cluster` and `Member` / `Node` version.
      Returns:
        the `MemberVersion` of this member.
      Since:
        3.8

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