Class SystemStatusChangeEventTypeNode

All Implemented Interfaces:
BaseEventType, BaseObjectType, SystemEventType, SystemStatusChangeEventType, org.eclipse.milo.opcua.sdk.core.nodes.Node, org.eclipse.milo.opcua.sdk.core.nodes.ObjectNode

public class SystemStatusChangeEventTypeNode extends SystemEventTypeNode implements SystemStatusChangeEventType
  • Constructor Details

    • SystemStatusChangeEventTypeNode

      public SystemStatusChangeEventTypeNode(OpcUaClient client, org.eclipse.milo.opcua.stack.core.types.builtin.NodeId nodeId, org.eclipse.milo.opcua.stack.core.types.enumerated.NodeClass nodeClass, org.eclipse.milo.opcua.stack.core.types.builtin.QualifiedName browseName, org.eclipse.milo.opcua.stack.core.types.builtin.LocalizedText displayName, org.eclipse.milo.opcua.stack.core.types.builtin.LocalizedText description, org.eclipse.milo.opcua.stack.core.types.builtin.unsigned.UInteger writeMask, org.eclipse.milo.opcua.stack.core.types.builtin.unsigned.UInteger userWriteMask, org.eclipse.milo.opcua.stack.core.types.structured.RolePermissionType[] rolePermissions, org.eclipse.milo.opcua.stack.core.types.structured.RolePermissionType[] userRolePermissions, org.eclipse.milo.opcua.stack.core.types.structured.AccessRestrictionType accessRestrictions, org.eclipse.milo.opcua.stack.core.types.builtin.unsigned.UByte eventNotifier)
  • Method Details

    • getSystemState

      public org.eclipse.milo.opcua.stack.core.types.enumerated.ServerState getSystemState() throws org.eclipse.milo.opcua.stack.core.UaException
      Description copied from interface: SystemStatusChangeEventType
      Get the local value of the SystemState Node.

      The returned value is the last seen; it is not read live from the server.

      Specified by:
      getSystemState in interface SystemStatusChangeEventType
      Returns:
      the local value of the SystemState Node.
      Throws:
      org.eclipse.milo.opcua.stack.core.UaException - if an error occurs creating or getting the SystemState Node.
    • setSystemState

      public void setSystemState(org.eclipse.milo.opcua.stack.core.types.enumerated.ServerState value) throws org.eclipse.milo.opcua.stack.core.UaException
      Description copied from interface: SystemStatusChangeEventType
      Set the local value of the SystemState Node.

      The value is only updated locally; it is not written to the server.

      Specified by:
      setSystemState in interface SystemStatusChangeEventType
      Parameters:
      value - the local value to set for the SystemState Node.
      Throws:
      org.eclipse.milo.opcua.stack.core.UaException - if an error occurs creating or getting the SystemState Node.
    • readSystemState

      public org.eclipse.milo.opcua.stack.core.types.enumerated.ServerState readSystemState() throws org.eclipse.milo.opcua.stack.core.UaException
      Description copied from interface: SystemStatusChangeEventType
      Read the value of the SystemState Node from the server and update the local value if the operation succeeds.
      Specified by:
      readSystemState in interface SystemStatusChangeEventType
      Returns:
      the ServerState value read from the server.
      Throws:
      org.eclipse.milo.opcua.stack.core.UaException - if a service- or operation-level error occurs.
    • writeSystemState

      public void writeSystemState(org.eclipse.milo.opcua.stack.core.types.enumerated.ServerState value) throws org.eclipse.milo.opcua.stack.core.UaException
      Description copied from interface: SystemStatusChangeEventType
      Write a new value for the SystemState Node to the server and update the local value if the operation succeeds.
      Specified by:
      writeSystemState in interface SystemStatusChangeEventType
      Parameters:
      value - the ServerState value to write to the server.
      Throws:
      org.eclipse.milo.opcua.stack.core.UaException - if a service- or operation-level error occurs.
    • readSystemStateAsync

      public CompletableFuture<? extends org.eclipse.milo.opcua.stack.core.types.enumerated.ServerState> readSystemStateAsync()
      Description copied from interface: SystemStatusChangeEventType
      An asynchronous implementation of SystemStatusChangeEventType.readSystemState().
      Specified by:
      readSystemStateAsync in interface SystemStatusChangeEventType
      Returns:
      a CompletableFuture that completes successfully with the value or completes exceptionally if an operation- or service-level error occurs.
    • writeSystemStateAsync

      public CompletableFuture<org.eclipse.milo.opcua.stack.core.types.builtin.StatusCode> writeSystemStateAsync(org.eclipse.milo.opcua.stack.core.types.enumerated.ServerState systemState)
      Description copied from interface: SystemStatusChangeEventType
      Specified by:
      writeSystemStateAsync in interface SystemStatusChangeEventType
      Returns:
      a CompletableFuture that completes successfully with the operation result or completes exceptionally if a service-level error occurs.
    • getSystemStateNode

      public PropertyTypeNode getSystemStateNode() throws org.eclipse.milo.opcua.stack.core.UaException
      Description copied from interface: SystemStatusChangeEventType
      Get the SystemState PropertyType Node, or null if it does not exist.

      The Node is created when first accessed and cached for subsequent calls.

      Specified by:
      getSystemStateNode in interface SystemStatusChangeEventType
      Returns:
      the SystemState PropertyType Node, or null if it does not exist.
      Throws:
      org.eclipse.milo.opcua.stack.core.UaException - if an error occurs creating or getting the Node.
    • getSystemStateNodeAsync

      public CompletableFuture<? extends PropertyTypeNode> getSystemStateNodeAsync()
      Description copied from interface: SystemStatusChangeEventType
      Asynchronous implementation of SystemStatusChangeEventType.getSystemStateNode().
      Specified by:
      getSystemStateNodeAsync in interface SystemStatusChangeEventType
      Returns:
      a CompletableFuture that completes successfully with the PropertyType Node or completes exceptionally if an error occurs creating or getting the Node.