Module is.codion.framework.domain
Package is.codion.framework.domain.entity

Interface EntityDefinition

public interface EntityDefinition
Specifies an entity definition.

  • Field Details

    • OPTIMISTIC_LOCKING

      static final PropertyValue<Boolean> OPTIMISTIC_LOCKING
      Specifies whether optimistic locking should be enabled by default for entities
      • Value type: Boolean
      • Default value: true

  • Method Details

    • entityType

      EntityType entityType()
      Returns:
      the entity type

    • tableName

      String tableName()
      Returns:
      the name of the underlying table, with schema prefix if applicable

    • condition

      ConditionProvider condition(ConditionType conditionType)
      Returns the ConditionProvider associated with the given type
      Parameters:
      conditionType - the condition type
      Returns:
      the condition provider associated with the given type
      Throws:
      IllegalArgumentException - in case no ConditionProvider is associated with the given conditionType

    • validator

      EntityValidator validator()
      Returns:
      the validator for this entity type

    • exists

      Predicate<Entity> exists()
      The default exists predicate returns true if the entity has a non-null original primary key, which is a best guess about an entity existing in a database.
      Returns:
      the predicate to use to check if an entity of this type exists in the database

    • caption

      String caption()
      Returns:
      the caption to use when presenting entities of this type

    • description

      String description()
      Returns:
      the entity description

    • smallDataset

      boolean smallDataset()
      Returns:
      true if the underlying table is small enough for displaying the contents in a combo box

    • readOnly

      boolean readOnly()
      Returns:
      true if this entity type is read only

    • optimisticLocking

      boolean optimisticLocking()
      Returns:
      true if optimistic locking should be used during updates

    • orderBy

      Optional<OrderBy> orderBy()
      Returns:
      the default order by clause to use when querying entities of this type, an empty Optional if none is available

    • selectTableName

      String selectTableName()
      Returns:
      the name of the table to use when selecting entities of this type

    • selectQuery

      Optional<SelectQuery> selectQuery()
      Returns:
      the select query to use when selecting entities of this type, an empty Optional if none is available

    • stringFactory

      Function<Entity,String> stringFactory()
      Returns:
      the function responsible for providing toString values for this entity type

    • comparator

      Comparator<Entity> comparator()
      Returns:
      the comparator used when comparing this entity type to other entities

    • attributes

      EntityDefinition.Attributes attributes()
      Returns:
      the EntityDefinition.Attributes instance

    • columns

      EntityDefinition.Columns columns()
      Returns:
      the EntityDefinition.Columns instance

    • foreignKeys

      EntityDefinition.ForeignKeys foreignKeys()
      Returns:
      the EntityDefinition.ForeignKeys instance

    • primaryKey

      EntityDefinition.PrimaryKey primaryKey()
      Returns:
      the EntityDefinition.PrimaryKey instance

    • entity

      Entity entity()
      Creates a new Entity instance based on this definition
      Returns:
      a new Entity instance

    • entity

      Entity entity(Map<Attribute<?>,Object> values)
      Creates a new Entity instance based on this definition
      Parameters:
      values - the values
      Returns:
      a new Entity instance
      Throws:
      IllegalArgumentException - in case any of the value attributes are not part of the entity.

    • entity

      Entity entity(Map<Attribute<?>,Object> values, Map<Attribute<?>,Object> originalValues)
      Creates a new Entity instance based on this definition
      Parameters:
      values - the values
      originalValues - the original values
      Returns:
      a new Entity instance
      Throws:
      IllegalArgumentException - in case any of the value attributes are not part of the entity.

    • primaryKey

      <T> Entity.Key primaryKey(T value)
      Creates a new Entity.Key instance based on this definition, initialised with the given value
      Type Parameters:
      T - the key value type
      Parameters:
      value - the key value, assuming a single value key
      Returns:
      a new Entity.Key instance
      Throws:
      IllegalStateException - in case the given primary key is a composite key
      IllegalArgumentException - in case the value is not of the correct type