Loading Multiple DocumentTable Objects from a Single File as a Single Operation Leave feedback
NoteThe code uses some of the objects defined in The Business Layer.
API provides the ability to load multiple DocumentTable objects from a single file as a single operation. Following classes and interfaces of the GroupDocs.Assembly.Data namespace have been added:
- DocumentTableSet
- DocumentTableCollection
- IDocumentTableLoadHandler
- DocumentTableLoadArgs.
Moreover, following properties of the GroupDocs.Assembly.Data.DocumentTable class have been added:
- Name
- IndexInDocument
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| // For complete examples and data files, please go to https://github.com/groupdocs-assembly/GroupDocs.Assembly-for-Java | |
| // Load all document tables using default options. | |
| DocumentTableSet tableSet = new DocumentTableSet(CommonUtilities.wordDataFile + dataSource); | |
| // Check loading. | |
| assert tableSet.getTables().getCount() == 3; | |
| assert tableSet.getTables().get(0).getName().equals("Table1"); | |
| assert tableSet.getTables().get(1).getName().equals("Table2"); | |
| assert tableSet.getTables().get(2).getName().equals("Table3"); |
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| // For complete examples and data files, please go to https://github.com/groupdocs-assembly/GroupDocs.Assembly-for-Java | |
| // Load document tables using custom options. | |
| DocumentTableSet tableSet = new DocumentTableSet(CommonUtilities.getDataPath(srcDocument), new CustomDocumentTableLoadHandler()); | |
| // Ensure that the second table is not loaded. | |
| assert tableSet.getTables().getCount() == 2; | |
| assert tableSet.getTables().get(0).getName().equals("Table1"); | |
| assert tableSet.getTables().get(1).getName().equals("Table3"); | |
| // Ensure that default options are used to load the first table (that is, default column names are used). | |
| assert tableSet.getTables().get(0).getColumns().getCount() == 2; | |
| assert tableSet.getTables().get(0).getColumns().get(0).getName().equals("Column1"); | |
| assert tableSet.getTables().get(0).getColumns().get(1).getName().equals("Column2"); | |
| // Ensure that custom options are used to load the third table (that is, column names are extracted). | |
| assert tableSet.getTables().get(1).getColumns().getCount() == 2; | |
| assert tableSet.getTables().get(1).getColumns().get(0).getName().equals("Name"); | |
| assert tableSet.getTables().get(1).getColumns().get(1).getName().equals("Address"); |
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| // For complete examples and data files, please go to https://github.com/groupdocs-assembly/GroupDocs.Assembly-for-Java | |
| // Set table column names to be extracted from the document. | |
| DocumentTableSet tableSet = new DocumentTableSet(CommonUtilities.getDataPath(srcDocument), new ColumnNameExtractingDocumentTableLoadHandler()); | |
| // Set table names for conveniency. | |
| tableSet.getTables().get(0).setName("Planets"); | |
| tableSet.getTables().get(1).setName("Persons"); | |
| tableSet.getTables().get(2).setName("Companies"); | |
| // Pass DocumentTableSet as a data source. | |
| DocumentAssembler assembler = new DocumentAssembler(); | |
| assembler.assembleDocument(CommonUtilities.getDataPath(slideDoc), CommonUtilities.getOutPath("/Presentation Reports/out.pptx"),new DataSourceInfo(tableSet)); |
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| // For complete examples and data files, please go to https://github.com/groupdocs-assembly/GroupDocs.Assembly-for-Java | |
| public class CustomDocumentTableLoadHandler implements IDocumentTableLoadHandler | |
| { | |
| public void handle(DocumentTableLoadArgs args) | |
| { | |
| switch (args.getTableIndex()) | |
| { | |
| case 0: | |
| // Do nothing. The table is to be loaded with default options. | |
| break; | |
| case 1: | |
| // Discard loading of the table completely. | |
| args.isLoaded(false); | |
| break; | |
| case 2: | |
| // Load the table with custom options. | |
| args.setOptions(new DocumentTableOptions()); | |
| args.getOptions().setFirstRowContainsColumnNames(true); | |
| break; | |
| default: | |
| throw new IllegalStateException(); | |
| } | |
| } | |
| } |
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| // For complete examples and data files, please go to https://github.com/groupdocs-assembly/GroupDocs.Assembly-for-Java | |
| public class ColumnNameExtractingDocumentTableLoadHandler implements IDocumentTableLoadHandler | |
| { | |
| public void handle(DocumentTableLoadArgs args) | |
| { | |
| args.setOptions(new DocumentTableOptions()); | |
| args.getOptions().setFirstRowContainsColumnNames(true); | |
| } | |
| } |
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