javax.persistence.criteria

## Interface CriteriaBuilder.Coalesce<T>

- All Superinterfaces:
    Expression<T>, Selection<T>, TupleElement<T>
  Enclosing interface:
    CriteriaBuilder

      public static interface CriteriaBuilder.Coalesce<T>
      extends Expression<T>

  Interface used to build coalesce expressions. A coalesce expression is equivalent to a case expression that returns null if all its arguments evaluate to null, and the value of its first non-null argument otherwise.

- - ### Method Summary

    Methods
    Modifier and Type | Method and Description
    --- | ---
    `CriteriaBuilder.Coalesce<T>` | `value(Expression<? extends T> value)` Add an argument to the coalesce expression.
    `CriteriaBuilder.Coalesce<T>` | `value(T value)` Add an argument to the coalesce expression.

    - ### Methods inherited from interface javax.persistence.criteria.Expression

      `as, in, in, in, in, isNotNull, isNull`

    - ### Methods inherited from interface javax.persistence.criteria.Selection

      `alias, getCompoundSelectionItems, isCompoundSelection`

    - ### Methods inherited from interface javax.persistence.TupleElement

      `getAlias, getJavaType`

- - ### Method Detail

    - #### value

          CriteriaBuilder.Coalesce<T> value(T value)

      Add an argument to the coalesce expression.
      Parameters:
        `value` - value
      Returns:
        coalesce expression

    - #### value

          CriteriaBuilder.Coalesce<T> value(Expression<? extends T> value)

      Add an argument to the coalesce expression.
      Parameters:
        `value` - expression
      Returns:
        coalesce expression

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