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Wallet: Split CoinSelector out into a top level interface in the wallet package.

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This commit is contained in:
Mike Hearn 2013-09-20 16:45:31 +02:00
parent efb6349a50
commit c4405d3ee7
4 changed files with 22 additions and 14 deletions
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4
core/src/main/java/com/google/bitcoin/core/TransactionConfidence.java
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@ -423,7 +423,7 @@ public class TransactionConfidence implements Serializable {
/**
* The source of a transaction tries to identify where it came from originally. For instance, did we download it
* from the peer to peer network, or make it ourselves, or receive it via Bluetooth, or import it from another app,
* and so on. This information is useful for {@link Wallet.CoinSelector} implementations to risk analyze
* and so on. This information is useful for {@link com.google.bitcoin.wallet.CoinSelector} implementations to risk analyze
* transactions and decide when to spend them.
*/
public synchronized Source getSource() {
@ -433,7 +433,7 @@ public class TransactionConfidence implements Serializable {
/**
* The source of a transaction tries to identify where it came from originally. For instance, did we download it
* from the peer to peer network, or make it ourselves, or receive it via Bluetooth, or import it from another app,
* and so on. This information is useful for {@link Wallet.CoinSelector} implementations to risk analyze
* and so on. This information is useful for {@link com.google.bitcoin.wallet.CoinSelector} implementations to risk analyze
* transactions and decide when to spend them.
*/
public synchronized void setSource(Source source) {

13
core/src/main/java/com/google/bitcoin/core/Wallet.java
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@ -25,6 +25,7 @@ import com.google.bitcoin.store.UnreadableWalletException;
import com.google.bitcoin.store.WalletProtobufSerializer;
import com.google.bitcoin.utils.ListenerRegistration;
import com.google.bitcoin.utils.Threading;
import com.google.bitcoin.wallet.CoinSelector;
import com.google.bitcoin.wallet.KeyTimeCoinSelector;
import com.google.bitcoin.wallet.WalletFiles;
import com.google.common.base.Preconditions;
@ -164,16 +165,6 @@ public class Wallet implements Serializable, BlockChainListener, PeerFilterProvi
}
}
/**
* A CoinSelector is responsible for picking some outputs to spend, from the list of all spendable outputs. It
* allows you to customize the policies for creation of transactions to suit your needs. The select operation
* may return a {@link CoinSelection} that has a valueGathered lower than the requested target, if there's not
* enough money in the wallet.
*/
public interface CoinSelector {
public CoinSelection select(BigInteger target, LinkedList<TransactionOutput> candidates);
}
/**
* This class implements a {@link CoinSelector} which attempts to get the highest priority possible. This means that
* the transaction is the most likely to get confirmed
@ -1636,7 +1627,7 @@ public class Wallet implements Serializable, BlockChainListener, PeerFilterProvi
public KeyParameter aesKey = null;
/**
* If not null, the {@link Wallet.CoinSelector} to use instead of the wallets default. Coin selectors are
* If not null, the {@link com.google.bitcoin.wallet.CoinSelector} to use instead of the wallets default. Coin selectors are
* responsible for choosing which transaction outputs (coins) in a wallet to use given the desired send value
* amount.
*/

17
core/src/main/java/com/google/bitcoin/wallet/CoinSelector.java Normal file
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@ -0,0 +1,17 @@
package com.google.bitcoin.wallet;
import com.google.bitcoin.core.TransactionOutput;
import com.google.bitcoin.core.Wallet;
import java.math.BigInteger;
import java.util.LinkedList;
/**
* A CoinSelector is responsible for picking some outputs to spend, from the list of all spendable outputs. It
* allows you to customize the policies for creation of transactions to suit your needs. The select operation
* may return a {@link com.google.bitcoin.core.Wallet.CoinSelection} that has a valueGathered lower than the requested target, if there's not
* enough money in the wallet.
*/
public interface CoinSelector {
public Wallet.CoinSelection select(BigInteger target, LinkedList<TransactionOutput> candidates);
}

2
core/src/main/java/com/google/bitcoin/wallet/KeyTimeCoinSelector.java
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@ -29,7 +29,7 @@ import java.util.LinkedList;
* A coin selector that takes all coins assigned to keys created before the given timestamp.
* Used as part of the implementation of {@link Wallet#setKeyRotationTime(java.util.Date)}.
*/
public class KeyTimeCoinSelector implements Wallet.CoinSelector {
public class KeyTimeCoinSelector implements CoinSelector {
private static final Logger log = LoggerFactory.getLogger(KeyTimeCoinSelector.class);
/** A number of inputs chosen to avoid hitting {@link com.google.bitcoin.core.Transaction.MAX_STANDARD_TX_SIZE} */