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Java Source Code / Java Documentation » 6.0 JDK Modules » jsr 283 » javax.jcr.query.qom

Source Cross Reference Class Diagram Java Document (Java Doc)

javax.jcr.query.qom .Column

Column

public interface Column (Code)

Defines a column to include in the tabular view of query results.

If Column.getPropertyName property is not specified, a column is included for each single-valued non-residual property of the node type specified by the nodeType attribute of Column.getSelectorName selector .

If Column.getPropertyName property is specified, Column.getColumnName columnName is required and used to name the column in the tabular results. If Column.getPropertyName property is not specified, Column.getColumnName columnName must not be specified, and the included columns will be named " Column.getSelectorName selector .propertyName".

The query is invalid if:

Column.getSelectorName selector is not the name of a selector in the query, or
Column.getPropertyName property is specified but it not a a syntactically valid JCR name, or
Column.getPropertyName property is specified but does not evaluate to a scalar value, or
Column.getPropertyName property is specified but Column.getColumnName columnName is omitted, or
Column.getPropertyName property is omitted but Column.getColumnName columnName is specified, or
the columns in the tabular view are not uniquely named, whether those column names are specified by Column.getColumnName columnName (if Column.getPropertyName property is specified) or generated as described above (if Column.getPropertyName property is omitted).

If Column.getPropertyName property is specified but, for a node-tuple, the selector node does not have a property named Column.getPropertyName property , the query is valid and the column has null value.
since:
JCR 2.0

Method Summary
public String	getColumnName() Gets the column name.
public String	getPropertyName() Gets the name of the property.
public String	getSelectorName() Gets the name of the selector.

Method Detail

getColumnName
public String getColumnName()(Code)
	Gets the column name. the column name; must be null if`getPropertyName` is null and non-nullotherwise

getPropertyName
public String getPropertyName()(Code)
	Gets the name of the property. the property name, or null to include a column foreach single-value non-residual property of theselector's node type

getSelectorName
public String getSelectorName()(Code)
	Gets the name of the selector. the selector name; non-null

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