java.lang.Object
- org.bitcoinj.core.Services

```
public class Services
extends java.lang.Object
```
Wrapper for services bitfield used in various messages of the Bitcoin protocol. Each bit represents a node service, e.g. NODE_NETWORK if the node serves the full blockchain.
Instances of this class are immutable and should be treated as Java value-based.

Field Summary

Fields
Modifier and Type	Field	Description
`static int`	`BYTES`	Number of bytes of this bitfield.
`static int`	`NODE_BITCOIN_CASH`	A service bit used by Bitcoin-ABC to announce Bitcoin Cash nodes.
`static int`	`NODE_BLOOM`	A service bit that denotes whether the peer supports BIP37 bloom filters or not.
`static int`	`NODE_COMPACT_FILTERS`	Indicates the node will service basic block filter requests (BIP157, BIP158).
`static int`	`NODE_NETWORK`	A service bit that denotes whether the peer has a full copy of the block chain or not.
`static int`	`NODE_NETWORK_LIMITED`	A service bit that denotes whether the peer has at least the last two days worth of blockchain (BIP159).
`static int`	`NODE_P2P_V2`	Indicates the node supports BIP324 transport.
`static int`	`NODE_WITNESS`	Indicates that a node can be asked for blocks and transactions including witness data.

Method Summary

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`boolean`	`anyOf(long bitmask)`	Checks if at least one of the given node services is signaled by this bitfield.
`long`	`bits()`	Gets the 64 bits of this bitfield, each representing a node service.
`boolean`	`equals(java.lang.Object o)`
`boolean`	`has(long bitmask)`	Checks if given specific node services are signaled by this bitfield.
`boolean`	`hasAny()`	Checks if this bitfield signals any node services at all.
`int`	`hashCode()`
`static Services`	`none()`	Constructs a services bitfield representing "no node services".
`static Services`	`of(long bits)`	Wrap 64 bits, each representing a node service.
`static Services`	`read(java.nio.ByteBuffer buf)`	Construct a services bitfield by reading from the given buffer.
`byte[]`	`serialize()`	Allocates a byte array and writes the node service bits into it.
`java.lang.String`	`toString()`
`java.nio.ByteBuffer`	`write(java.nio.ByteBuffer buf)`	Write the node service bits into the given buffer.

Methods inherited from class java.lang.Object
clone, finalize, getClass, notify, notifyAll, wait, wait, wait

- Field Detail
  - NODE_NETWORK
```
public static final int NODE_NETWORK
```
    A service bit that denotes whether the peer has a full copy of the block chain or not.
    
    See Also:
    
    Constant Field Values
  - NODE_BLOOM
```
public static final int NODE_BLOOM
```
    A service bit that denotes whether the peer supports BIP37 bloom filters or not. The service bit is defined in BIP111.
    
    See Also:
    
    Constant Field Values
  - NODE_WITNESS
```
public static final int NODE_WITNESS
```
    Indicates that a node can be asked for blocks and transactions including witness data.
    
    See Also:
    
    Constant Field Values
  - NODE_COMPACT_FILTERS
```
public static final int NODE_COMPACT_FILTERS
```
    Indicates the node will service basic block filter requests (BIP157, BIP158).
    
    See Also:
    
    Constant Field Values
  - NODE_NETWORK_LIMITED
```
public static final int NODE_NETWORK_LIMITED
```
    A service bit that denotes whether the peer has at least the last two days worth of blockchain (BIP159).
    
    See Also:
    
    Constant Field Values
  - NODE_P2P_V2
```
public static final int NODE_P2P_V2
```
    Indicates the node supports BIP324 transport.
    
    See Also:
    
    Constant Field Values
  - NODE_BITCOIN_CASH
```
public static final int NODE_BITCOIN_CASH
```
    A service bit used by Bitcoin-ABC to announce Bitcoin Cash nodes.
    
    See Also:
    
    Constant Field Values
  - BYTES
```
public static final int BYTES
```
    Number of bytes of this bitfield.
    
    See Also:
    
    Constant Field Values
- Method Detail
  - of
```
public static Services of(long bits)
```
    Wrap 64 bits, each representing a node service.
    
    Parameters:
    
    bits - bits to wrap
    
    Returns:
    
    wrapped service bits
  - none
```
public static Services none()
```
    Constructs a services bitfield representing "no node services".
    
    Returns:
    
    wrapped service bits
  - read
```
public static Services read(java.nio.ByteBuffer buf)
                     throws java.nio.BufferUnderflowException
```
    Construct a services bitfield by reading from the given buffer.
    
    Parameters:
    
    buf - buffer to read from
    
    Returns:
    
    wrapped service bits
    
    Throws:
    
    java.nio.BufferUnderflowException - if the read services bitfield extends beyond the remaining bytes of the buffer
  - bits
```
public long bits()
```
    Gets the 64 bits of this bitfield, each representing a node service.
    
    Returns:
    
    the service bits
  - hasAny
```
public boolean hasAny()
```
    Checks if this bitfield signals any node services at all.
    
    Returns:
    
    true if at least one service is signaled, false otherwise
  - has
```
public boolean has(long bitmask)
```
    Checks if given specific node services are signaled by this bitfield.
    
    Parameters:
    
    bitmask - bitmask representing the services to be checked for
    
    Returns:
    
    true if the given services are all signaled, false otherwise
  - anyOf
```
public boolean anyOf(long bitmask)
```
    Checks if at least one of the given node services is signaled by this bitfield.
    
    Parameters:
    
    bitmask - bitmask representing the services to be checked for
    
    Returns:
    
    true if at least one of the given services is signaled, false otherwise
  - write
```
public java.nio.ByteBuffer write(java.nio.ByteBuffer buf)
                          throws java.nio.BufferOverflowException
```
    Write the node service bits into the given buffer.
    
    Parameters:
    
    buf - buffer to write into
    
    Returns:
    
    the buffer
    
    Throws:
    
    java.nio.BufferOverflowException - if the service bits don't fit the remaining buffer
  - serialize
```
public byte[] serialize()
```
    Allocates a byte array and writes the node service bits into it.
    
    Returns:
    
    byte array containing the service bits
  - toString
```
public java.lang.String toString()
```
    Overrides:
    
    toString in class java.lang.Object
  - equals
```
public boolean equals(java.lang.Object o)
```
    Overrides:
    
    equals in class java.lang.Object
  - hashCode
```
public int hashCode()
```
    Overrides:
    
    hashCode in class java.lang.Object

Class Services

Field Summary

Method Summary

Methods inherited from class java.lang.Object

Field Detail

NODE_NETWORK

NODE_BLOOM

NODE_WITNESS

NODE_COMPACT_FILTERS

NODE_NETWORK_LIMITED

NODE_P2P_V2

NODE_BITCOIN_CASH

BYTES

Method Detail

of

none

read

bits

hasAny

has

anyOf

write

serialize

toString

equals

hashCode