Returns the axis of the ancestor headers element.
Returns the axis of the ancestor headers element. This may fail with an exception if the document is not schema-valid.
Filters the constraints by taking tag selectors into account.
Filters the constraints by taking tag selectors into account. This is inspired by the table specification, section 7.6. At most one constraint set is returned. Therefore the result can be used for its optional tag, which can be used in queries for specific types of constraints.
Very fast implementation of findAllChildElems, for fast querying
Very fast implementation of findAllChildElems, for fast querying
Returns the maximum zero-based slice index of this header cell.
Returns the maximum zero-based slice index of this header cell. This may fail with an exception if the document is not schema-valid.
Returns the minimal zero-based slice index of this header cell.
Returns the minimal zero-based slice index of this header cell. This may fail with an exception if the document is not schema-valid.
Returns the optional rollup attribute as boolean, with default false.
Returns the optional rollup attribute as boolean, with default false. This may fail with an exception if the document is not schema-valid.
Returns the optional span attribute as integer, with default 1.
Returns the optional span attribute as integer, with default 1. This may fail with an exception if the document is not schema-valid.
Header cell in a table model