code: /*
   * Copyright (c) 2019 the Eclipse Milo Authors
   *
   * This program and the accompanying materials are made
   * available under the terms of the Eclipse Public License 2.0
   * which is available at https://www.eclipse.org/legal/epl-2.0/
   *
   * SPDX-License-Identifier: EPL-2.0
   */
  
  package org.eclipse.milo.opcua.stack.core.types.structured;
  
  import lombok.EqualsAndHashCode;
  import lombok.ToString;
  import lombok.experimental.SuperBuilder;
  import org.eclipse.milo.opcua.stack.core.serialization.SerializationContext;
  import org.eclipse.milo.opcua.stack.core.serialization.UaDecoder;
  import org.eclipse.milo.opcua.stack.core.serialization.UaEncoder;
  import org.eclipse.milo.opcua.stack.core.serialization.UaStructure;
  import org.eclipse.milo.opcua.stack.core.serialization.codecs.GenericDataTypeCodec;
  import org.eclipse.milo.opcua.stack.core.types.builtin.ExpandedNodeId;
  import org.eclipse.milo.opcua.stack.core.types.builtin.unsigned.UInteger;
  import org.eclipse.milo.opcua.stack.core.types.enumerated.DataChangeTrigger;
  
  @EqualsAndHashCode(
      callSuper = true
  )
  @SuperBuilder(
      toBuilder = true
  )
  @ToString
  public class DataChangeFilter extends MonitoringFilter implements UaStructure {
      public static final ExpandedNodeId TYPE_ID = ExpandedNodeId.parse("nsu=http://opcfoundation.org/UA/;i=722");
  
      public static final ExpandedNodeId BINARY_ENCODING_ID = ExpandedNodeId.parse("nsu=http://opcfoundation.org/UA/;i=724");
  
      public static final ExpandedNodeId XML_ENCODING_ID = ExpandedNodeId.parse("nsu=http://opcfoundation.org/UA/;i=723");
  
      private final DataChangeTrigger trigger;
  
      private final UInteger deadbandType;
  
      private final Double deadbandValue;
  
      public DataChangeFilter(DataChangeTrigger trigger, UInteger deadbandType, Double deadbandValue) {
          this.trigger = trigger;
          this.deadbandType = deadbandType;
          this.deadbandValue = deadbandValue;
      }
  
      @Override
      public ExpandedNodeId getTypeId() {
          return TYPE_ID;
      }
  
      @Override
      public ExpandedNodeId getBinaryEncodingId() {
          return BINARY_ENCODING_ID;
      }
  
      @Override
      public ExpandedNodeId getXmlEncodingId() {
          return XML_ENCODING_ID;
      }
  
      public DataChangeTrigger getTrigger() {
          return trigger;
      }
  
      public UInteger getDeadbandType() {
          return deadbandType;
      }
  
      public Double getDeadbandValue() {
          return deadbandValue;
      }
  
      public static final class Codec extends GenericDataTypeCodec<DataChangeFilter> {
          @Override
          public Class<DataChangeFilter> getType() {
              return DataChangeFilter.class;
          }
  
          @Override
          public DataChangeFilter decode(SerializationContext context, UaDecoder decoder) {
              DataChangeTrigger trigger = decoder.readEnum("Trigger", DataChangeTrigger.class);
              UInteger deadbandType = decoder.readUInt32("DeadbandType");
              Double deadbandValue = decoder.readDouble("DeadbandValue");
              return new DataChangeFilter(trigger, deadbandType, deadbandValue);
          }
  
          @Override
          public void encode(SerializationContext context, UaEncoder encoder, DataChangeFilter value) {
              encoder.writeEnum("Trigger", value.getTrigger());
              encoder.writeUInt32("DeadbandType", value.getDeadbandType());
              encoder.writeDouble("DeadbandValue", value.getDeadbandValue());
          }
      }
  }
  