RMA Path Syntax
Use the RMA path syntax to describe a path connecting associated models in the schema. It is used in the include= and criteria= URL parameters. Please note that the path syntax does not support spaces between operators and values, but values enclosed in single quotes can include them (i.e. name$eq'value with spaces').
Comma-Separated Lists for Multiple Associations
The RMA Path specifies a set of associations from a resource. The simplest form is a comma-separated list of association names. Association names are lower case and may be singular or plural depending on the type of association.
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probes,organism,chromosome |
Nested Parentheses for Association Paths
Indicate multiple levels of association with nested parentheses. Follow multiple associations from a model by using commas.
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probes(orientation,predicted_sequence) |
Square Brackets for Filters
Filter the resources that are included in the query results using square brackets following an association. Operators include equal ($eq), not equal ($ne), like ($li), greater than ($gt), less than ($lt), greater or equal ($ge) less or equal ($le) in ($in) and case-insensitive like ($il).
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http://api.brain-map.org/api/v2/data/Organism/query.xml?criteria=[name$il'*human*'][id$ne15] http://api.brain-map.org/api/v2/data/Gene/query.xml?criteria=[acronym$il'abat']&include=organism |
Double Colon for Axis
The double colon (::) operator can be used to change the axis of an RMA query. The five defined axes are attribute::, model::, service::, pipe:: and rma::. The double colon axis operator is combined with an id to create a single step along the axis. Examples include service::differential, pipe::list, model::Gene, and rma::options. Each axis behaves slightly differently. They can be used in combination to form a service pipeline.
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