Examples of org.pentaho.reporting.engine.classic.core.function.ExpressionCollection

Package org.pentaho.reporting.engine.classic.core.function

Examples of org.pentaho.reporting.engine.classic.core.function.ExpressionCollection

org.pentaho.reporting.engine.classic.core.function.ExpressionCollection
Collects all expressions used in the report. Unlike earlier versions of this class, now expressions can have a null-name and more than one expression with the same name can exist in the collection. Expressions without a name will not appear in the datarow and expressions with duplicate names will only appear once (the last expression added will appear, according to the rules of duplicate entries in the datarow) @author Thomas Morgner

    return null;
  }


  protected UndoEntry moveExpressions(final AbstractReportDefinition report, final Object element)
  {
    final ExpressionCollection expressionCollection = report.getExpressions();
    final Expression[] expressions = expressionCollection.getExpressions();
    for (int j = 1; j < expressions.length; j++)
    {
      final Expression expression = expressions[j];
      if (element == expression)
      {
        expressionCollection.removeExpression(j);
        expressionCollection.add(0, expression);


        report.fireModelLayoutChanged(report, ReportModelEvent.NODE_STRUCTURE_CHANGED, expression);
        return new CompoundUndoEntry
            (new ExpressionRemoveUndoEntry(j, expression), new ExpressionAddedUndoEntry(0, expression));
      }

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    }


    if (data instanceof Expression)
    {
      final AbstractReportDefinition report = context.getReportDefinition();
      final ExpressionCollection expressionCollection = report.getExpressions();
      final int count = expressionCollection.size();
      for (int i = 0; i < count; i++)
      {
        final Expression definitionEntry = expressionCollection.getExpression(i);
        if (definitionEntry == data)
        {
          expressionCollection.removeExpression(i);
          report.notifyNodeStructureChanged();
          return new ExpressionRemoveUndoEntry(i, definitionEntry);
        }
      }
      return null;

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    }


    if (data instanceof Expression)
    {
      final AbstractReportDefinition report = context.getReportDefinition();
      final ExpressionCollection expressionCollection = report.getExpressions();
      final int count = expressionCollection.size();
      for (int i = 0; i < count; i++)
      {
        final Expression definitionEntry = expressionCollection.getExpression(i);
        if (definitionEntry == data)
        {
          return definitionEntry.getInstance();
        }
      }

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      }
      return indexOf(getDataFactoryColumns(), node.getFieldName());
    }
    if (parent == reportFunctionNode)
    {
      final ExpressionCollection expressionCollection = getExpressions();
      for (int i = 0; i < expressionCollection.size(); i++)
      {
        final Expression dataFactory = expressionCollection.getExpression(i);
        if (dataFactory == child)
        {
          return i;
        }
      }

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