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11  *   http://www.apache.org/licenses/LICENSE-2.0
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21 
22 
23 package com.sun.star.report;
24 
25 /**
26  * A report add-in defines a set of expressions, which can
27  * be used in the reporting.
28  *
29  * Each expression must provide meta-data to support GUI implementors.
30  * Expressions are assumed to be statefull, if they are not, they are
31  * free to be implemented as stateless expression.
32  */
33 public interface ReportAddIn
34 {
35 
getExpressionCount()36     int getExpressionCount();
37 
createExpression(int expression)38     ReportExpression createExpression(int expression);
39 
getMetaData(int expression)40     ReportExpressionMetaData getMetaData(int expression);
41 }
42