RelationType (Java SE 26 & JDK 26)
Description: declaration: module: java.management, package: javax.management.relation, interface: RelationType
Keywords: javax.management.relation.RelationType interface

# Interface RelationType

All Superinterfaces:
  `Serializable`

All Known Implementing Classes:
  `RelationTypeSupport`

public interface RelationType extends Serializable
The RelationType interface has to be implemented by any class expected to represent a relation type.

Since:
  1.5

- ## Method Summary

  Modifier and Type
  Method
  Description
  `String`
  `getRelationTypeName()`
  Returns the relation type name.
  `RoleInfo`
  `getRoleInfo(String roleInfoName)`
  Returns the role info (RoleInfo object) for the given role info name (null if not found).
  `List<RoleInfo>`
  `getRoleInfos()`
  Returns the list of role definitions (ArrayList of RoleInfo objects).

- ## Method Details

  - ### getRelationTypeName

    String getRelationTypeName()
    Returns the relation type name.
    Returns:
      the relation type name.

  - ### getRoleInfos

    List<RoleInfo> getRoleInfos()
    Returns the list of role definitions (ArrayList of RoleInfo objects).
    Returns:
      an `ArrayList` of `RoleInfo`.

  - ### getRoleInfo

    RoleInfo getRoleInfo(String roleInfoName) throws IllegalArgumentException, RoleInfoNotFoundException
    Returns the role info (RoleInfo object) for the given role info name (null if not found).
    Parameters:
      `roleInfoName` - role info name
    Returns:
      RoleInfo object providing role definition does not exist
    Throws:
      `IllegalArgumentException` - if null parameter
      `RoleInfoNotFoundException` - if no role info with that name in relation type.