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Viewing File: Factory Classes.md
# Factory Classes
There are a number of factory classes to help create & parse objects.
An example of a globally set dependency is the Network; if not explicitly provided in a function call, the globally set default will be used.
### \BitWasp\Bitcoin\Bitcoin
`Bitcoin::getMath()` - Returns a `Math` instance
`Bitcoin::getGenerator()` - Returns a `GeneratorPoint` instance
`Bitcoin::getEcAdapter()` - Returns an `EcAdapterInterface` instance
`Bitcoin::getNetwork()` - Returns the default, or explicitly set `NetworkInterface`
`Bitcoin::setNetwork(NetworkInterface $network)` - Sets $network as the default network
### \BitWasp\Bitcoin\Address\AddressFactory:
`AddressFactory::fromKey(PublicKeyInterface $publicKey)`: Returns an `PayToPubKeyHashAddress` instance for the provided `PublicKeyInterface`
`AddressFactory::fromScript(ScriptInterface $p2shScript)`: Returns an `ScriptHashAddress` instance for the provided `ScriptInterface`
`AddressFactory::fromOutputScript(ScriptInterface $scriptPubKey)`: Attempts to return an Address instance based on the type of scriptPubKey
`AddressFactory::getAssociatedAddress(ScriptInterface $scriptPubKey, [$network])`: Returns a base58 string for a P2PK, or P2PKH script, or P2SH script.
`AddressFactory::fromString($string, [$network])`: Tries to return an AddressInterface based off the string, and network.
### \BitWasp\Bitcoin\Block\BlockFactory
`BlockFactory::fromHex($data)` - Attempts to parse a block from a hex string or Buffer.
### \BitWasp\Bitcoin\Block\BlockHeaderFactory
`BlockHeaderFactory::fromHex()` - Parse a header from a hex string or Buffer
### \BitWasp\Bitcoin\Key\PrivateKeyFactory
`PrivateKeyFactory::fromHex($data)` - Parses `PrivateKeyInterface` from hex string or Buffer
`PrivateKeyFactory::fromInt($int)` - Creates a `PrivateKeyInterface` using the provided decimal integer.
`PrivateKeyFactory::fromWif($wif)` - Parses a base58 encoded private key.
`PrivateKeyFactory::create([$compressed = false]` - Generates a `PrivateKeyInterface`.
`PrivateKeyFactory::generateSecret()` - Generates a Buffer representing a valid private key.
### \BitWasp\Bitcoin\Key\PublicKeyFactory
`PublicKeyFactory::fromHex($data)` - Parses `PublicKeyInterface` from hex string or Buffer
### \BitWasp\Bitcoin\Key\Deterministic\HierarchicalKeyFactory
`HierarchicalKeyFactory::fromExtended($extendedKey)` - Parses a `HierarchicalKey` from a base58 encoded string
`HierarchicalKeyFactory::generateMasterKey()` - Creates a new master `HierarchicalKey`
`HierarchicalKeyFactory::fromEntropy(Buffer $entropy)` - Creates a master `HierarchicalKey` from provided entropy
### \BitWasp\Bitcoin\Script\ScriptFactory
`ScriptFactory::fromHex($data)` - Parses `ScriptInterface` from hex string or Buffer
`ScriptFactory::create([$startScript])` - Returns a `ScriptCreator` instance, used to generate scripts.
`ScriptFactory::sequence($sequenceArray)` - Generates a script given an array consisting of opcodes and Buffers.
`ScriptFactory::scriptPubKey()` - Returns an `OutputScriptFactory` instance, used to safely generate output scripts.
`ScriptFactory::p2sh()` - Returns an `P2shScriptFactory` - an `OutputScriptFactory` augmented to return `P2shScript` instances.
`ScriptFactory::consensus([$flags])` - Returns a `ConsensusInterface` used to validate bitcoin scripts.
### \BitWasp\Bitcoin\Script\Factory\ScriptCreator instance:
This class is used for raw script generation. It's methods mutate the script, which is obtained by
calling `getScript()` when complete.
`ScriptCreator::sequence()` - Adds a list of opcodes and Buffer pushes into the script.
`ScriptCreator::op($opName)` - Adds opcode $opName to the script
`ScriptCreator::int()` - Adds an integer value-push into the script
`ScriptCreator::push(Buffer $buffer)` - Adds a value-push of $buffer into the script
`ScriptCreator::concat(ScriptInterface $script)` - Concatenates another `ScriptInterface` to $this
`ScriptCreator::pushSerializable(SerializableInterface $serializable)` - Adds a value-push of a serializable object into the script
`ScriptCreator::pushSerializableArray($serializableArr)` - Adds a vector of serialiable objects
`ScriptCreator::getScript()` - Returns a `ScriptInterface` of the composed script
### \BitWasp\Bitcoin\Script\Factory\OutputScriptFactory instance:
This class contains methods to safely generate commonly used output scripts.
`OutputScriptFactory::payToAddress(AddressInterface $address)` - Returns output script for the provided address
`OutputScriptFactory::payToPubKey(PublicKeyInterface $publicKey)` - Returns pay-to-pubkey output script for $publicKey.
`OutputScriptFactory::payToPubKeyHash(PublicKeyInterface $publicKey)` - Returns pay-to-pubkey-hash script for $publicKey
`OutputScriptFactory::payToScriptHash(ScriptInterface $p2shScript)` - Returns a pay-to-script-hash script for $p2shScript
### \BitWasp\Bitcoin\Script\Factory\P2shScriptFactory instance:
Returns a P2shScript instance, for the payToPubKey, payToPubKeyHash, and multisig cases.
### \BitWasp\Bitcoin\Signature\SignatureFactory:
`SignatureFactory::fromHex($data)` - Parses a `SignatureInterface` from a DER signature
### \BitWasp\Bitcoin\Signature\TransactionSignatureFactory:
`TransactionSignatureFactory::fromHex()` - Parses a `TransactionSignatureInterface` given a hex string or Buffer. This is the form with the SigHash byte appended.
### \BitWasp\Bitcoin\Transaction\TransactionFactory:
`TransactionFactory::build()` - Returns a `TxBuilder` instance
`TransactionFactory::mutate(TransactionInterface $tx)` - Returns a `TxMutator` instance, used to mutate transactions.
`TransactionFactory::sign(TransactionInterface $tx)` - Returns a `Signer` instance, used to sign transactions.
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