CBLQueryMeta

@interface CBLQueryMeta : NSObject

CBLQueryMeta is a factory class for creating the expressions that refers to the metadata properties of the document.

  • +id

    Document ID expression.

    Declaration

    Objective-C

    + (nonnull CBLQueryExpression *)id;

    Return Value

    The document ID expression.

  • Document ID expression.

    Declaration

    Objective-C

    + (nonnull CBLQueryExpression *)idFrom:(nullable NSString *)alias;

    Parameters

    alias

    The data source alias name.

    Return Value

    The document ID expression.

  • A metadata expression refering to the revision ID of the document.

    Declaration

    Objective-C

    + (nonnull CBLQueryExpression *)revisionID;

    Return Value

    The revision ID expression.

  • A metadata expression refering to the revision ID of the document.

    Declaration

    Objective-C

    + (nonnull CBLQueryExpression *)revisionIDFrom:(nullable NSString *)alias;

    Parameters

    alias

    The data source alias name.

    Return Value

    The revision ID expression.

  • Sequence number expression. The sequence number indicates how recently the document has been changed. If one document’s sequence is greater than another’s, that means it was changed more recently.

    Declaration

    Objective-C

    + (nonnull CBLQueryExpression *)sequence;

    Return Value

    The sequence number expression.

  • Sequence number expression. The sequence number indicates how recently the document has been changed. If one document’s sequence is greater than another’s, that means it was changed more recently.

    Declaration

    Objective-C

    + (nonnull CBLQueryExpression *)sequenceFrom:(nullable NSString *)alias;

    Parameters

    alias

    The data source alias name.

    Return Value

    The sequence number expression.

  • A metadata expression referring to the deleted boolean flag of the document.

    Declaration

    Objective-C

    + (nonnull CBLQueryExpression *)isDeleted;

    Return Value

    The deleted boolean flag expression.

  • A metadata expression referring to the deleted boolean flag of the document.

    Declaration

    Objective-C

    + (nonnull CBLQueryExpression *)isDeletedFrom:(nullable NSString *)alias;

    Parameters

    alias

    The data source alias name.

    Return Value

    The deleted boolean flag expression.

  • A metadata expression refering to the expiration timestamp of the document.

    Declaration

    Objective-C

    + (nonnull CBLQueryExpression *)expiration;

    Return Value

    The expired flag expression.

  • A metadata expression refering to the expiration timestamp of the document.

    Declaration

    Objective-C

    + (nonnull CBLQueryExpression *)expirationFrom:(nullable NSString *)alias;

    Parameters

    alias

    The data source alias name.

    Return Value

    The expired flag expression.

  • Unavailable

    Not available

    Declaration

    Objective-C

    - (nonnull instancetype)init;