Package org.jgroups.protocols.pbcast

Class STATE_TRANSFER.StateHeader

  • All Implemented Interfaces:
    java.io.Externalizable, java.io.Serializable, Streamable
    Enclosing class:
    STATE_TRANSFER
    public static class STATE_TRANSFER.StateHeader
extends Header
implements Streamable
    Wraps data for a state request/response. Note that for a state response the actual state will not
    See Also:
    Serialized Form

    • Method Summary

      All Methods Instance Methods Concrete Methods 
      Modifier and Type Method Description
      boolean equals​(java.lang.Object o)  
      Digest getDigest()  
      java.lang.String getStateId()  
      int getType()  
      int hashCode()  
      void readExternal​(java.io.ObjectInput in)  
      void readFrom​(java.io.DataInputStream in)
      Read the state of the current object (including superclasses) from instream Note that the input stream must not be closed
      int size()
      To be implemented by subclasses.
      java.lang.String toString()  
      void writeExternal​(java.io.ObjectOutput out)  
      void writeTo​(java.io.DataOutputStream out)
      Write the entire state of the current object (including superclasses) to outstream.

      • Methods inherited from class java.lang.Object

        clone, finalize, getClass, notify, notifyAll, wait, wait, wait

    • Constructor Detail

      • StateHeader

        public StateHeader()

      • StateHeader

        public StateHeader​(byte type,
                   Address sender,
                   long id,
                   Digest digest)

      • StateHeader

        public StateHeader​(byte type,
                   Address sender,
                   long id,
                   Digest digest,
                   java.lang.String state_id)

    • Method Detail

      • getType

        public int getType()

      • getDigest

        public Digest getDigest()

      • getStateId

        public java.lang.String getStateId()

      • 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

      • toString

        public java.lang.String toString()
        Overrides:
        toString in class Header

      • writeExternal

        public void writeExternal​(java.io.ObjectOutput out)
                   throws java.io.IOException
        Specified by:
        writeExternal in interface java.io.Externalizable
        Throws:
        java.io.IOException

      • readExternal

        public void readExternal​(java.io.ObjectInput in)
                  throws java.io.IOException,
                         java.lang.ClassNotFoundException
        Specified by:
        readExternal in interface java.io.Externalizable
        Throws:
        java.io.IOException
        java.lang.ClassNotFoundException

      • writeTo

        public void writeTo​(java.io.DataOutputStream out)
             throws java.io.IOException
        Description copied from interface: Streamable
        Write the entire state of the current object (including superclasses) to outstream. Note that the output stream must not be closed
        Specified by:
        writeTo in interface Streamable
        Throws:
        java.io.IOException

      • readFrom

        public void readFrom​(java.io.DataInputStream in)
              throws java.io.IOException,
                     java.lang.IllegalAccessException,
                     java.lang.InstantiationException
        Description copied from interface: Streamable
        Read the state of the current object (including superclasses) from instream Note that the input stream must not be closed
        Specified by:
        readFrom in interface Streamable
        Throws:
        java.io.IOException
        java.lang.IllegalAccessException
        java.lang.InstantiationException

      • size

        public int size()
        Description copied from class: Header
        To be implemented by subclasses. Return the size of this object for the serialized version of it. I.e. how many bytes this object takes when flattened into a buffer. This may be different for each instance, or can be the same. This may also just be an estimation. E.g. FRAG uses it on Message to determine whether or not to fragment the message. Fragmentation itself will be accurate, because the entire message will actually be serialized into a byte buffer, so we can determine the exact size.
        Overrides:
        size in class Header