android.arch.persistence.room.ForeignKey java code examples

@Entity(tableName = STREAM_STATE_TABLE,
    primaryKeys = {JOIN_STREAM_ID},
    foreignKeys = {
        @ForeignKey(entity = StreamEntity.class,
            parentColumns = StreamEntity.STREAM_ID,
            childColumns = JOIN_STREAM_ID,

},
foreignKeys = {
    @ForeignKey(entity = PlaylistEntity.class,
        parentColumns = PlaylistEntity.PLAYLIST_ID,
        childColumns = JOIN_PLAYLIST_ID,
        onDelete = CASCADE, onUpdate = CASCADE, deferred = true),
    @ForeignKey(entity = StreamEntity.class,
        parentColumns = StreamEntity.STREAM_ID,
        childColumns = JOIN_STREAM_ID,

@ForeignKey(entity = StreamEntity.class,
    parentColumns = StreamEntity.STREAM_ID,
    childColumns = JOIN_STREAM_ID,

    "tagId",
}, foreignKeys = {
    @ForeignKey(entity = Contact.class,
          parentColumns = "id",
          childColumns = "contactId"),
    @ForeignKey(entity = Tag.class,
          parentColumns = "id",
          childColumns = "tagId"),

@Entity(primaryKeys = {"autofillHint"}, foreignKeys = @ForeignKey(
    entity = FieldType.class, parentColumns = "typeName", childColumns = "fieldTypeName",
    onDelete = ForeignKey.CASCADE))
public class AutofillHint {

  @NonNull
  @ColumnInfo(name = "autofillHint")
  public String mAutofillHint;

  @NonNull
  @ColumnInfo(name = "fieldTypeName")
  public String mFieldTypeName;

  public AutofillHint(@NonNull String autofillHint, @NonNull String fieldTypeName) {
    this.mAutofillHint = autofillHint;
    this.mFieldTypeName = fieldTypeName;
  }
}

@Entity(primaryKeys = {"resourceIdHeuristic", "packageName"}, foreignKeys = @ForeignKey(
    entity = FieldType.class, parentColumns = "typeName", childColumns = "fieldTypeName",
    onDelete = ForeignKey.CASCADE))
public class ResourceIdHeuristic {

  @NonNull
  @ColumnInfo(name = "resourceIdHeuristic")
  public String mResourceIdHeuristic;

  @NonNull
  @ColumnInfo(name = "packageName")
  public String mPackageName;

  @NonNull
  @ColumnInfo(name = "fieldTypeName")
  public String mFieldTypeName;

  public ResourceIdHeuristic(@NonNull String resourceIdHeuristic, @NonNull String fieldTypeName,
      @NonNull String packageName) {
    mResourceIdHeuristic = resourceIdHeuristic;
    mFieldTypeName = fieldTypeName;
    mPackageName = packageName;
  }
}

@Entity(foreignKeys = @ForeignKey(
    entity = Contact.class,
    parentColumns = "id",

@Entity(
 tableName="links",
 foreignKeys=@ForeignKey(
  entity=Trip.class,
  parentColumns="id",

@Entity(tableName="paragraphs",
 foreignKeys=@ForeignKey(entity=ChapterEntity.class, parentColumns="id",
  childColumns="chapterId", onDelete=ForeignKey.CASCADE),
 indices={@Index(value="chapterId")})
public class ParagraphEntity {
 @PrimaryKey
 long sequence;
 String prose;
 long chapterId;

 ParagraphEntity(String prose) {
  this.prose=prose;
 }
}

@Entity(
 tableName="comments",
 foreignKeys=@ForeignKey(
  entity=Trip.class,
  parentColumns="id",

@Entity(
 tableName="notes",
 foreignKeys=@ForeignKey(
  entity=Trip.class,
  parentColumns="id",

@Entity(
 tableName="flights",
 foreignKeys=@ForeignKey(
  entity=Trip.class,
  parentColumns="id",

@Entity(tableName = "trophy",
    foreignKeys = {
        @ForeignKey(
            entity = User.class,
            parentColumns = "id",
            childColumns = "userId",
            onDelete = ForeignKey.CASCADE
        )},
    indices = { @Index(value = "userId")}
)
public class Trophy {

  @PrimaryKey(autoGenerate = true)
  long id;

  public long userId;

  String description;

  public Trophy(long userId, String description) {
    this.userId = userId;
    this.description = description;
  }
}

@Entity(
 tableName="lodgings",
 foreignKeys=@ForeignKey(
  entity=Trip.class,
  parentColumns="id",
  childColumns="tripId",
  onDelete=CASCADE),
 indices=@Index("tripId"))
@TypeConverters({TypeTransmogrifier.class})
class Lodging extends Plan {
 public final String address;
 public final String tripId;

 @Ignore
 Lodging(String title, int duration, Priority priority, Date startTime,
     String address, String tripId) {
  super(title, duration, priority, startTime);
  this.address=address;
  this.tripId=tripId;
 }

 Lodging(String id, String title, int duration,
     Priority priority, Date startTime, Date creationTime,
     Date updateTime, String address, String tripId) {
  super(id, title, duration, priority, startTime, creationTime, updateTime);
  this.address=address;
  this.tripId=tripId;
 }
}

@Entity(
 tableName="lodgings",
 foreignKeys=@ForeignKey(
  entity=Trip.class,
  parentColumns="id",
  childColumns="tripId",
  onDelete=CASCADE),
 indices=@Index("tripId"))
@TypeConverters({TypeTransmogrifier.class})
class Lodging extends Plan {
 public final String address;
 public final String tripId;

 @Ignore
 Lodging(String title, int duration, Priority priority, Date startTime,
     String address, String tripId) {
  super(title, duration, priority, startTime);
  this.address=address;
  this.tripId=tripId;
 }

 Lodging(String id, String title, int duration,
     Priority priority, Date startTime, Date creationTime,
     Date updateTime, String address, String tripId) {
  super(id, title, duration, priority, startTime, creationTime, updateTime);
  this.address=address;
  this.tripId=tripId;
 }
}

@Entity(
 tableName="lodgings",
 foreignKeys=@ForeignKey(
  entity=Trip.class,
  parentColumns="id",
  childColumns="tripId",
  onDelete=CASCADE),
 indices=@Index("tripId"))
@TypeConverters({TypeTransmogrifier.class})
class Lodging extends Plan {
 public final String address;
 public final String tripId;

 @Ignore
 Lodging(String title, int duration, Priority priority, Date startTime,
     String address, String tripId) {
  super(title, duration, priority, startTime);
  this.address=address;
  this.tripId=tripId;
 }

 Lodging(String id, String title, int duration,
     Priority priority, Date startTime, Date creationTime,
     Date updateTime, String address, String tripId) {
  super(id, title, duration, priority, startTime, creationTime, updateTime);
  this.address=address;
  this.tripId=tripId;
 }
}

@Entity(
 tableName="lodgings",
 foreignKeys=@ForeignKey(
  entity=Trip.class,
  parentColumns="id",
  childColumns="tripId",
  onDelete=CASCADE),
 indices=@Index("tripId"))
@TypeConverters({TypeTransmogrifier.class})
class Lodging extends Plan {
 public final String address;
 public final String tripId;

 @Ignore
 Lodging(String title, int duration, Priority priority, Date startTime,
     String address, String tripId) {
  super(title, duration, priority, startTime);
  this.address=address;
  this.tripId=tripId;
 }

 Lodging(String id, String title, int duration,
     Priority priority, Date startTime, Date creationTime,
     Date updateTime, String address, String tripId) {
  super(id, title, duration, priority, startTime, creationTime, updateTime);
  this.address=address;
  this.tripId=tripId;
 }
}

@Entity(
 tableName="lodgings",
 foreignKeys=@ForeignKey(
  entity=Trip.class,
  parentColumns="id",
  childColumns="tripId",
  onDelete=CASCADE),
 indices=@Index("tripId"))
@TypeConverters({TypeTransmogrifier.class})
class Lodging extends Plan {
 public final String address;
 public final String tripId;

 @Ignore
 Lodging(String title, int duration, Priority priority, Date startTime,
     String address, String tripId) {
  super(title, duration, priority, startTime);
  this.address=address;
  this.tripId=tripId;
 }

 Lodging(String id, String title, int duration,
     Priority priority, Date startTime, Date creationTime,
     Date updateTime, String address, String tripId) {
  super(id, title, duration, priority, startTime, creationTime, updateTime);
  this.address=address;
  this.tripId=tripId;
 }
}

@Entity(
 tableName="lodgings",
 foreignKeys=@ForeignKey(
  entity=Trip.class,
  parentColumns="id",
  childColumns="tripId",
  onDelete=CASCADE),
 indices=@Index("tripId"))
@TypeConverters({TypeTransmogrifier.class})
class Lodging extends Plan {
 public final String address;
 public final String tripId;

 @Ignore
 Lodging(String title, int duration, Priority priority, Date startTime,
     String address, String tripId) {
  super(title, duration, priority, startTime);
  this.address=address;
  this.tripId=tripId;
 }

 Lodging(String id, String title, int duration,
     Priority priority, Date startTime, Date creationTime,
     Date updateTime, String address, String tripId) {
  super(id, title, duration, priority, startTime, creationTime, updateTime);
  this.address=address;
  this.tripId=tripId;
 }
}

@Entity(
 tableName="lodgings",
 foreignKeys=@ForeignKey(
  entity=Trip.class,
  parentColumns="id",
  childColumns="tripId",
  onDelete=CASCADE),
 indices=@Index("tripId"))
@TypeConverters({TypeTransmogrifier.class})
class Lodging extends Plan {
 public final String address;
 public final String tripId;

 @Ignore
 Lodging(String title, int duration, Priority priority, Date startTime,
     String address, String tripId) {
  super(title, duration, priority, startTime);
  this.address=address;
  this.tripId=tripId;
 }

 Lodging(String id, String title, int duration,
     Priority priority, Date startTime, Date creationTime,
     Date updateTime, String address, String tripId) {
  super(id, title, duration, priority, startTime, creationTime, updateTime);
  this.address=address;
  this.tripId=tripId;
 }
}

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How to useForeignKey in android.arch.persistence.room

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ForeignKey
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android.arch.persistence.room