sqltriples.Query.Query

Package sqltriples :: Module Query :: Class Query

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Class Query

AbstractQuery --+
                |
               Query

Known Subclasses:: Results

An abstract class providing support for lazy query evaluation.

Method Summary
	`__init__(self, store, functions)`
	`__getitem__(self, i)`
	`__len__(self)`
	`__repr__(self)`
	`get_query(self, index, constraints)` Return a query clause, associated values, and an updated table index (as a 3-tuple) for this object's query defined using the given table 'index' and the supplied, optional 'constraints' text.
	`get_subquery(self, parent_columns, parent_index, index, match_first, match_parent, match_child)` Make a subquery for this object using the given 'parent_columns' (indicating the columns which connect with this object's exposed columns), a 'parent_index' (indicating the table index used in the parent query, within which the returned query clause shall be employed), and the current table 'index'.

Class Variable Summary
Inherited from AbstractQuery
`list`	`table_columns` = `[('subject', 'subject_type', 0), ('predi...`

Method Details

get_query(self, index, constraints=None)

Return a query clause, associated values, and an updated table index (as
a 3-tuple) for this object's query defined using the given table 'index'
and the supplied, optional 'constraints' text.

get_subquery(self, parent_columns, parent_index, index, match_first=0, match_parent=0, match_child=0)

Make a subquery for this object using the given 'parent_columns'
(indicating the columns which connect with this object's exposed
columns), a 'parent_index' (indicating the table index used in the
parent query, within which the returned query clause shall be employed),
and the current table 'index'.

Return a query clause, associated values, and an updated table index (as
a 3-tuple).

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