How to use

channel

method

in

org.diirt.datasource.ExpressionLanguage

/**
 * A channel with the given name of type VDouble.
 *
 * @param name the channel name; can't be null
 * @return an expression representing the channel
 */
public static ChannelExpression<VDouble, Double> vDouble(String name) {
  return channel(name, VDouble.class, Double.class);
}

/**
 * A channel with the given name of type VDoubleArray.
 *
 * @param name the channel name; can't be null
 * @return an expression representing the channel
 */
public static ChannelExpression<VDoubleArray, ArrayDouble> vDoubleArray(String name) {
  return channel(name, VDoubleArray.class, ArrayDouble.class);
}

/**
 * A channel with the given name of type VByteArray.
 *
 * @param name the channel name; can't be null
 * @return an expression representing the channel
 */
public static ChannelExpression<VByteArray, ArrayByte> vByteArray(String name) {
  return channel(name, VByteArray.class, ArrayByte.class);
}

/**
 * A channel with the given name of type VShortArray.
 *
 * @param name the channel name; can't be null
 * @return an expression representing the channel
 */
public static ChannelExpression<VShortArray, ArrayShort> vShortArray(String name) {
  return channel(name, VShortArray.class, ArrayShort.class);
}

/**
 * A channel with the given name of type VIntArray.
 *
 * @param name the channel name; can't be null
 * @return an expression representing the channel
 */
public static ChannelExpression<VIntArray, ArrayInt> vIntArray(String name) {
  return channel(name, VIntArray.class, ArrayInt.class);
}

/**
 * A channel with the given name of type VFloat.
 *
 * @param name the channel name; can't be null
 * @return an expression representing the channel
 */
public static ChannelExpression<VFloat, Float> vFloat(String name) {
  return channel(name, VFloat.class, Float.class);
}

/**
 * A channel with the given name of type VShort.
 *
 * @param name the channel name; can't be null
 * @return an expression representing the channel
 */
public static ChannelExpression<VShort, Short> vShort(String name) {
  return channel(name, VShort.class, Short.class);
}

/**
 * A channel with the given name that returns any of the value types.
 *
 * @param name the channel name; can't be null
 * @return an expression representing the channel
 */
public static ChannelExpression<VType, Object> vType(String name) {
  return channel(name, VType.class, Object.class);
}

/**
 * A channel with the given name of type VFloatArray.
 *
 * @param name the channel name; can't be null
 * @return an expression representing the channel
 */
public static ChannelExpression<VFloatArray, ArrayFloat> vFloatArray(String name) {
  return channel(name, VFloatArray.class, ArrayFloat.class);
}

/**
 * A channel with the given name of type VInt.
 *
 * @param name the channel name; can't be null
 * @return an expression representing the channel
 */
public static ChannelExpression<VInt, Integer> vInt(String name) {
  return channel(name, VInt.class, Integer.class);
}

/**
 * A channel with the given name of type VByte.
 *
 * @param name the channel name; can't be null
 * @return an expression representing the channel
 */
public static ChannelExpression<VByte, Byte> vByte(String name) {
  return channel(name, VByte.class, Byte.class);
}

/**
 * A channel with the given name of type VNumber.
 *
 * @param name the channel name; can't be null
 * @return an expression representing the channel
 */
public static ChannelExpression<VNumber, Number> vNumber(String name) {
  return channel(name, VNumber.class, Number.class);
}

/**
 * A channel with the given name of type VStringArray.
 *
 * @param name the channel name; can't be null
 * @return an expression representing the channel
 */
@SuppressWarnings("unchecked")
public static ChannelExpression<VStringArray, List<String>> vStringArray(String name) {
  return (ChannelExpression<VStringArray, List<String>>) (ChannelExpression) channel(name, VStringArray.class, List.class);
}

/**
 * A channel with the given name of type VEnum.
 *
 * @param name the channel name; can't be null
 * @return an expression representing the channel
 */
public static ChannelExpression<VEnum, Integer> vEnum(String name) {
  return channel(name, VEnum.class, Integer.class);
}

/**
 * A channel with the given name of type VString.
 *
 * @param name the channel name; can't be null
 * @return an expression representing the channel
 */
public static ChannelExpression<VString, String> vString(String name) {
  return channel(name, VString.class, String.class);
}

/**
 * A channel with the given name of type VNumberArray.
 *
 * @param name the channel name; can't be null
 * @return an expression representing the channel
 */
public static ChannelExpression<VNumberArray, ListNumber> vNumberArray(String name) {
  return channel(name, VNumberArray.class, ListNumber.class);
}

/**
 * A channel with the given name of any type. This expression can be
 * used both in a read and a write expression.
 *
 * @param name the channel name
 * @return an expression representing the channel
 */
public static ChannelExpression<Object, Object> channel(String name) {
  return channel(name, Object.class, Object.class);
}

public void b4_synchronousWrite() {
  PVWriter<Object> pvWriter = PVManager.write(channel("channelName")).sync();
  // This will block until the write is done
  pvWriter.write("New value");
  System.out.println("Write finished");
  // Remember to close
  pvWriter.close();
}

public void datasourcesInSWT_CSSTudio() {
  // In CS-Studio, you should never change the default configuration programmatically
  // or you will create problems for other applications. All configuration
  // shoul be done on your own readers/writers.
  // If you are developing user interfaces in SWT, you will want to route the notifications on the SWT thread.
  // Import from here
  // import static org.csstudio.utility.pvmanager.ui.SWTUtil.*;
  // When creating a pv, remember to ask for notification on the SWT thread
  PVReader<?> pvReader = PVManager.read(channel("test")).notifyOn(swtThread()).maxRate(ofMillis(100));
}

public void datasourcesInSwing() {
  // When creating UIs in swing, you will need to route notification directly
  // on the Event Dispatch Thread.
  // You can do this on a PV by PV basis, or you can change the default if
  // you control the whole application.
  // Import from here
  // import static org.diirt.util.concurrent.Executors.*;
  // Route notification for this pv on the Swing EDT
  PVReader<?> pvReader = PVManager.read(channel("test")).notifyOn(swingEDT()).maxRate(ofMillis(100));
  // Or you can change the default
  PVManager.setDefaultNotificationExecutor(swingEDT());
}