DynamicGroup (CSS Core API)

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org.epics.pvmanager.extra
Class DynamicGroup

java.lang.Object
  org.epics.pvmanager.expression.DesiredRateExpressionListImpl<R>
      org.epics.pvmanager.expression.DesiredRateExpressionImpl<java.util.List<java.lang.Object>>
          org.epics.pvmanager.extra.DynamicGroup

All Implemented Interfaces:: DesiredRateExpression<java.util.List<java.lang.Object>>, DesiredRateExpressionList<java.util.List<java.lang.Object>>

public class DynamicGroup
extends DesiredRateExpressionImpl<java.util.List<java.lang.Object>>
extends DesiredRateExpressionImpl<java.util.List<java.lang.Object>>

A expression that returns the result of a dynamically managed group. Once the group is created, any DesiredRateExpression can be added dynamically. The exceptions eventually generated by those expressions can be obtained through lastExceptions().

Author:: carcassi

Constructor Summary
`DynamicGroup()` Creates a new group.

Method Summary
`DynamicGroup`	`add(DesiredRateExpression<?> expression)` Adds the expression at the end.
`DynamicGroup`	`clear()` Removes all the expressions currently in the group.
`java.util.List<java.lang.Exception>`	`lastExceptions()` Returns the last exception for each expression in the group (if present).
`DynamicGroup`	`remove(int index)` Removes the expression at the given location.
`DynamicGroup`	`set(int index, DesiredRateExpression<?> expression)` Changes the expression to the given location.
`int`	`size()` Returns the number of expressions in the group.

Methods inherited from class org.epics.pvmanager.expression.DesiredRateExpressionImpl
`as, getDataRecipe, getDesiredRateExpressionImpl, getFunction, getName`

Methods inherited from class org.epics.pvmanager.expression.DesiredRateExpressionListImpl
`and, getDesiredRateExpressions`

Methods inherited from class java.lang.Object
`clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

Methods inherited from interface org.epics.pvmanager.expression.DesiredRateExpressionList
`and, getDesiredRateExpressions`

Constructor Detail

DynamicGroup

public DynamicGroup()

Creates a new group.

Method Detail

lastExceptions

public java.util.List<java.lang.Exception> lastExceptions()

Returns the last exception for each expression in the group (if present).

Returns:: a list of exceptions (never null)

clear

public DynamicGroup clear()

Removes all the expressions currently in the group.

Returns:: this

size

public int size()

Returns the number of expressions in the group.

Returns:: number of expressions in the group

add

public DynamicGroup add(DesiredRateExpression<?> expression)

Adds the expression at the end.

Parameters:: expression - the expression to be added
Returns:: this

remove

public DynamicGroup remove(int index)

Removes the expression at the given location.

Parameters:: index - the position to remove
Returns:: this

set

public DynamicGroup set(int index,
                        DesiredRateExpression<?> expression)

Changes the expression to the given location.

Parameters:: index - the position to remove; expression - the new expression
Returns:: this