Package org.apache.polaris.service.events

Record Class AttributeKey<T>

java.lang.Object
java.lang.Record
org.apache.polaris.service.events.AttributeKey<T>
Type Parameters:
T - the type of the attribute value
public record AttributeKey<T>(String name, com.google.common.reflect.TypeToken<T> type) extends Record
A type-safe key for event attributes. This allows for strongly-typed attribute access while maintaining flexibility for custom attributes.

Attribute types are validated at key creation time to ensure they can be serialized. See AllowedAttributeTypes for the list of allowed types.

  • Constructor Summary

    Constructors
    Constructor
    Description
    AttributeKey(String name, com.google.common.reflect.TypeToken<T> type)
    Creates an instance of a AttributeKey record class.
    AttributeKey(String name, Class<T> type)
     

  • Method Summary

    Modifier and Type
    Method
    Description
    T
    cast(Object value)
     
    final boolean
    equals(Object o)
    Indicates whether some other object is "equal to" this one.
    final int
    hashCode()
    Returns a hash code value for this object.
    String
    name()
    Returns the value of the name record component.
    String
    toString()
    Returns a string representation of this record class.
    com.google.common.reflect.TypeToken<T>
    type()
    Returns the value of the type record component.

    Methods inherited from class java.lang.Object

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

  • Constructor Details

    • AttributeKey

      public AttributeKey(String name, com.google.common.reflect.TypeToken<T> type)
      Creates an instance of a AttributeKey record class.
      Parameters:
      name - the value for the name record component
      type - the value for the type record component

    • AttributeKey

      public AttributeKey(String name, Class<T> type)

  • Method Details

    • cast

      public T cast(Object value)

    • toString

      public String toString()
      Returns a string representation of this record class. The representation contains the name of the class, followed by the name and value of each of the record components.
      Specified by:
      toString in class Record
      Returns:
      a string representation of this object

    • hashCode

      public final int hashCode()
      Returns a hash code value for this object. The value is derived from the hash code of each of the record components.
      Specified by:
      hashCode in class Record
      Returns:
      a hash code value for this object

    • equals

      public final boolean equals(Object o)
      Indicates whether some other object is "equal to" this one. The objects are equal if the other object is of the same class and if all the record components are equal. All components in this record class are compared with Objects::equals(Object,Object).
      Specified by:
      equals in class Record
      Parameters:
      o - the object with which to compare
      Returns:
      true if this object is the same as the o argument; false otherwise.

    • name

      public String name()
      Returns the value of the name record component.
      Returns:
      the value of the name record component

    • type

      public com.google.common.reflect.TypeToken<T> type()
      Returns the value of the type record component.
      Returns:
      the value of the type record component