Module org.eclipse.milo.opcua.sdk.client
Package org.eclipse.milo.opcua.sdk.client.model.variables

Interface ExpressionGuardVariableType

All Superinterfaces:
BaseDataVariableType, BaseVariableType, GuardVariableType, org.eclipse.milo.opcua.sdk.core.nodes.Node, org.eclipse.milo.opcua.sdk.core.nodes.VariableNode
All Known Implementing Classes:
ExpressionGuardVariableTypeNode
public interface ExpressionGuardVariableType extends GuardVariableType
See Also:

  • Field Summary

    Fields
    Modifier and Type
    Field
    Description
    static final org.eclipse.milo.opcua.sdk.core.QualifiedProperty<org.eclipse.milo.opcua.stack.core.types.structured.ContentFilter>
    EXPRESSION
     

  • Method Summary

    Modifier and Type
    Method
    Description
    org.eclipse.milo.opcua.stack.core.types.structured.ContentFilter
    getExpression()
    Get the local value of the Expression Node.
    PropertyType
    getExpressionNode()
    Get the Expression PropertyType Node, or null if it does not exist.
    CompletableFuture<? extends PropertyType>
    getExpressionNodeAsync()
    Asynchronous implementation of getExpressionNode().
    org.eclipse.milo.opcua.stack.core.types.structured.ContentFilter
    readExpression()
    Read the value of the Expression Node from the server and update the local value if the operation succeeds.
    CompletableFuture<? extends org.eclipse.milo.opcua.stack.core.types.structured.ContentFilter>
    readExpressionAsync()
    An asynchronous implementation of readExpression().
    void
    setExpression(org.eclipse.milo.opcua.stack.core.types.structured.ContentFilter value)
    Set the local value of the Expression Node.
    void
    writeExpression(org.eclipse.milo.opcua.stack.core.types.structured.ContentFilter value)
    Write a new value for the Expression Node to the server and update the local value if the operation succeeds.
    CompletableFuture<org.eclipse.milo.opcua.stack.core.types.builtin.StatusCode>
    writeExpressionAsync(org.eclipse.milo.opcua.stack.core.types.structured.ContentFilter value)
    An asynchronous implementation of writeExpression(org.eclipse.milo.opcua.stack.core.types.structured.ContentFilter).

    Methods inherited from interface org.eclipse.milo.opcua.sdk.core.nodes.Node

    getAccessRestrictions, getBrowseName, getDescription, getDisplayName, getNodeClass, getNodeId, getRolePermissions, getUserRolePermissions, getUserWriteMask, getWriteMask, setAccessRestrictions, setBrowseName, setDescription, setDisplayName, setNodeClass, setNodeId, setRolePermissions, setUserRolePermissions, setUserWriteMask, setWriteMask

    Methods inherited from interface org.eclipse.milo.opcua.sdk.core.nodes.VariableNode

    getAccessLevel, getAccessLevelEx, getArrayDimensions, getDataType, getHistorizing, getMinimumSamplingInterval, getUserAccessLevel, getValue, getValueRank, setAccessLevel, setAccessLevelEx, setArrayDimensions, setDataType, setHistorizing, setMinimumSamplingInterval, setUserAccessLevel, setValue, setValueRank

  • Field Details

    • EXPRESSION

      static final org.eclipse.milo.opcua.sdk.core.QualifiedProperty<org.eclipse.milo.opcua.stack.core.types.structured.ContentFilter> EXPRESSION

  • Method Details

    • getExpression

      org.eclipse.milo.opcua.stack.core.types.structured.ContentFilter getExpression() throws org.eclipse.milo.opcua.stack.core.UaException
      Get the local value of the Expression Node.

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

      Returns:
      the local value of the Expression Node.
      Throws:
      org.eclipse.milo.opcua.stack.core.UaException - if an error occurs creating or getting the Expression Node.

    • setExpression

      void setExpression(org.eclipse.milo.opcua.stack.core.types.structured.ContentFilter value) throws org.eclipse.milo.opcua.stack.core.UaException
      Set the local value of the Expression Node.

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

      Parameters:
      value - the local value to set for the Expression Node.
      Throws:
      org.eclipse.milo.opcua.stack.core.UaException - if an error occurs creating or getting the Expression Node.

    • readExpression

      org.eclipse.milo.opcua.stack.core.types.structured.ContentFilter readExpression() throws org.eclipse.milo.opcua.stack.core.UaException
      Read the value of the Expression Node from the server and update the local value if the operation succeeds.
      Returns:
      the ContentFilter value read from the server.
      Throws:
      org.eclipse.milo.opcua.stack.core.UaException - if a service- or operation-level error occurs.

    • writeExpression

      void writeExpression(org.eclipse.milo.opcua.stack.core.types.structured.ContentFilter value) throws org.eclipse.milo.opcua.stack.core.UaException
      Write a new value for the Expression Node to the server and update the local value if the operation succeeds.
      Parameters:
      value - the ContentFilter value to write to the server.
      Throws:
      org.eclipse.milo.opcua.stack.core.UaException - if a service- or operation-level error occurs.

    • readExpressionAsync

      CompletableFuture<? extends org.eclipse.milo.opcua.stack.core.types.structured.ContentFilter> readExpressionAsync()
      An asynchronous implementation of readExpression().
      Returns:
      a CompletableFuture that completes successfully with the value or completes exceptionally if an operation- or service-level error occurs.

    • writeExpressionAsync

      CompletableFuture<org.eclipse.milo.opcua.stack.core.types.builtin.StatusCode> writeExpressionAsync(org.eclipse.milo.opcua.stack.core.types.structured.ContentFilter value)
      An asynchronous implementation of writeExpression(org.eclipse.milo.opcua.stack.core.types.structured.ContentFilter).
      Returns:
      a CompletableFuture that completes successfully with the operation result or completes exceptionally if a service-level error occurs.

    • getExpressionNode

      PropertyType getExpressionNode() throws org.eclipse.milo.opcua.stack.core.UaException
      Get the Expression PropertyType Node, or null if it does not exist.

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

      Returns:
      the Expression 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.

    • getExpressionNodeAsync

      CompletableFuture<? extends PropertyType> getExpressionNodeAsync()
      Asynchronous implementation of getExpressionNode().
      Returns:
      a CompletableFuture that completes successfully with the PropertyType Node or completes exceptionally if an error occurs creating or getting the Node.