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Class DnsSdTxtRecord

  • All Implemented Interfaces:

    public class DnsSdTxtRecord
    extends Object
    implements Parcelable
    This class handles TXT record data for DNS based service discovery as specified at DNS-SD specifies that a TXT record corresponding to an SRV record consist of a packed array of bytes, each preceded by a length byte. Each string is an attribute-value pair. The DnsSdTxtRecord object stores the entire TXT data as a single byte array, traversing it as need be to implement its various methods.
    • Constructor Detail

      • DnsSdTxtRecord

        public DnsSdTxtRecord()
        Constructs a new, empty TXT record.
      • DnsSdTxtRecord

        public DnsSdTxtRecord(byte[] data)
        Constructs a new TXT record from a byte array in the standard format.
      • DnsSdTxtRecord

        public DnsSdTxtRecord(DnsSdTxtRecord src)
        Copy constructor
    • Method Detail

      • set

        public void set(String key,
               String value)
        Set a key/value pair. Setting an existing key will replace its value.
        key - Must be ascii with no '='
        value - matching value to key
      • get

        public String get(String key)
        Get a value for a key
        key -
        The value associated with the key
      • remove

        public int remove(String key)
        Remove a key/value pair. If found, returns the index or -1 if not found
      • keyCount

        public int keyCount()
        Return the count of keys
      • contains

        public boolean contains(String key)
        Return true if key is present, false if not.
      • size

        public int size()
      • getRawData

        public byte[] getRawData()
      • toString

        public String toString()
        Return a string representation. Example : {key1=value1},{key2=value2}.. For a key say like "key3" with null value {key1=value1},{key2=value2}{key3}
        toString in class Object
        a printable representation of this object.
      • equals

        public boolean equals(Object o)
        Description copied from class: Object
        Compares this instance with the specified object and indicates if they are equal. In order to be equal, o must represent the same object as this instance using a class-specific comparison. The general contract is that this comparison should be reflexive, symmetric, and transitive. Also, no object reference other than null is equal to null.

        The default implementation returns true only if this == o. See Writing a correct equals method if you intend implementing your own equals method.

        The general contract for the equals and Object.hashCode() methods is that if equals returns true for any two objects, then hashCode() must return the same value for these objects. This means that subclasses of Object usually override either both methods or neither of them.

        equals in class Object
        o - the object to compare this instance with.
        true if the specified object is equal to this Object; false otherwise.
        See Also:
      • hashCode

        public int hashCode()
        Description copied from class: Object
        Returns an integer hash code for this object. By contract, any two objects for which Object.equals(java.lang.Object) returns true must return the same hash code value. This means that subclasses of Object usually override both methods or neither method.

        Note that hash values must not change over time unless information used in equals comparisons also changes.

        See Writing a correct hashCode method if you intend implementing your own hashCode method.

        hashCode in class Object
        this object's hash code.
        See Also:
      • describeContents

        public int describeContents()
        Implement the Parcelable interface
        Specified by:
        describeContents in interface Parcelable
        a bitmask indicating the set of special object types marshalled by the Parcelable.


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