Class AnonymousRenderer<T>

A renderer that invokes its callbacks.

This class is useful when you want an one-use ad-hoc implementation (i.e., Java-style anonymous class) of IRenderer<T> interface.

Inheritance

Object

AnonymousRenderer<T>

AnonymousActionRenderer<T>

Implements

IRenderer<T>

Namespace: Libplanet.Blockchain.Renderers

Assembly: Libplanet.dll

Syntax

public class AnonymousRenderer<T> : object, IRenderer<T> where T : IAction, new()

Type Parameters

Name	Description
T	An IAction type. It should match to BlockChain<T>'s type parameter.

Examples

With object initializers, you can easily make an one-use renderer:

var renderer = new AnonymousRenderer<ExampleAction>
{
    BlockRenderer = (oldTip, newTip) =>
    {
        // Implement RenderBlock() here.
    };
};

Properties

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BlockRenderer

A callback function to be invoked together with RenderBlock(Block<T>, Block<T>).

Declaration

public Action<Block<T>, Block<T>>? BlockRenderer { get; set; }

Property Value

Type	Description
Nullable<Libplanet.Action<Block<T>, Block<T>>>

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ReorgEndRenderer

A callback function to be invoked together with RenderReorgEnd(Block<T>, Block<T>, Block<T>).

Declaration

public Action<Block<T>, Block<T>, Block<T>>? ReorgEndRenderer { get; set; }

Property Value

Type	Description
Nullable<Libplanet.Action<Block<T>, Block<T>, Block<T>>>

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ReorgRenderer

A callback function to be invoked together with RenderReorg(Block<T>, Block<T>, Block<T>).

Declaration

public Action<Block<T>, Block<T>, Block<T>>? ReorgRenderer { get; set; }

Property Value

Type	Description
Nullable<Libplanet.Action<Block<T>, Block<T>, Block<T>>>

Methods

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RenderBlock(Block<T>, Block<T>)

Does things that should be done right after a new Block<T> is appended to a BlockChain<T> (so that its Tip has changed).

Declaration

public void RenderBlock(Block<T> oldTip, Block<T> newTip)

Parameters

Type	Name	Description
Block<T>	oldTip	The previous Tip.
Block<T>	newTip	The current Tip.

Remarks

It is guaranteed to be called only once for a block, and only after applied to the blockchain, unless it has been stale due to reorg (for that case, RenderReorg(Block<T>, Block<T>, Block<T>) is called in advance).

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RenderReorg(Block<T>, Block<T>, Block<T>)

Does things that should be done right before reorg happens to a BlockChain<T>.

Declaration

public void RenderReorg(Block<T> oldTip, Block<T> newTip, Block<T> branchpoint)

Parameters

Type	Name	Description
Block<T>	oldTip	The Tip right before reorg.
Block<T>	newTip	The Tip after reorg.
Block<T>	branchpoint	The highest common Block<T> between `oldTip` and `newTip`.

Remarks

For every call to this method, calls to RenderBlock(Block<T>, Block<T>) and RenderReorgEnd(Block<T>, Block<T>, Block<T>) methods with the same newTip is made too. Note that this method is guaranteed to be called before RenderBlock(Block<T>, Block<T>) method for the same newTip.

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RenderReorgEnd(Block<T>, Block<T>, Block<T>)

Does things that should be done right after reorg happens to a BlockChain<T>.

Declaration

public void RenderReorgEnd(Block<T> oldTip, Block<T> newTip, Block<T> branchpoint)

Parameters

Type	Name	Description
Block<T>	oldTip	The Tip right before reorg.
Block<T>	newTip	The Tip after reorg.
Block<T>	branchpoint	The highest common Block<T> between `oldTip` and `newTip`.

Remarks

Note that this method is guaranteed to be called after RenderReorg(Block<T>, Block<T>, Block<T>) and RenderBlock(Block<T>, Block<T>) methods for the same newTip.

Implements

IRenderer<T>