glok-model/uk.co.nickthecoder.glok.collections/ListChange

ListChange

interface ListChange<out E>

The data describing changes to an ObservableList.

See ObservableList.addChangeListener

A typical listener has the following structure :

val myListener = myObservableList.addChangeListener { _, change ->
    if ( change.removed.isNotEmpty() ) {
        // Act on removed items
    }
    if ( change.added.isNotEmpty() ) {
        // Act on data added.
    }
}
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Types

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object Companion

Properties

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abstract val added: List<E>

The items added to the ObservableList.

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abstract val from: Int

The index within the ObservableList where this change occurred.

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abstract val removed: List<E>

The items removed from the ObservableList.

Functions

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abstract fun isAddition(): Boolean

Return true iff no items were removed, but some were added.

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abstract fun isRemoval(): Boolean

Return true iff no items were added, and some were removed.

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abstract fun isReplacement(): Boolean

Returns true iff the same number of items were added and removed.