Example usage for java.util LinkedList retainAll

Introduction

In this page you can find the example usage for java.util LinkedList retainAll.

Prototype

boolean retainAll(Collection<?> c);

Source Link

Document

Retains only the elements in this list that are contained in the specified collection (optional operation).

Usage

From source file:org.apache.cayenne.modeler.dialog.codegen.GeneratorController.java

/**
 * Creates a class generator for provided selections.
 *///from  w w  w. ja v a 2s  .  co m
public Collection<ClassGenerationAction> createGenerator() {

    File outputDir = getOutputDir();

    // no destination folder
    if (outputDir == null) {
        JOptionPane.showMessageDialog(this.getView(), "Select directory for source files.");
        return null;
    }

    // no such folder
    if (!outputDir.exists() && !outputDir.mkdirs()) {
        JOptionPane.showMessageDialog(this.getView(),
                "Can't create directory " + outputDir + ". Select a different one.");
        return null;
    }

    // not a directory
    if (!outputDir.isDirectory()) {
        JOptionPane.showMessageDialog(this.getView(), outputDir + " is not a valid directory.");
        return null;
    }

    // remove generic entities...
    Collection<ObjEntity> selectedEntities = new ArrayList<>(getParentController().getSelectedEntities());
    Iterator<ObjEntity> it = selectedEntities.iterator();
    while (it.hasNext()) {
        if (it.next().isGeneric()) {
            it.remove();
        }
    }

    Collection<ClassGenerationAction> generators = new ArrayList<>();
    Collection<StandardPanelComponent> dataMapLines = ((GeneratorControllerPanel) getView()).getDataMapLines();
    for (DataMap map : getParentController().getDataMaps()) {
        try {
            ClassGenerationAction generator = newGenerator();
            generator.setArtifactsGenerationMode(mode);
            generator.setDataMap(map);

            LinkedList<ObjEntity> objEntities = new LinkedList<>(map.getObjEntities());
            objEntities.retainAll(selectedEntities);
            generator.addEntities(objEntities);

            LinkedList<Embeddable> embeddables = new LinkedList<>(map.getEmbeddables());
            embeddables.retainAll(getParentController().getSelectedEmbeddables());
            generator.addEmbeddables(embeddables);

            generator.addQueries(map.getQueryDescriptors());

            Preferences preferences = application.getPreferencesNode(GeneralPreferences.class, "");

            if (preferences != null) {
                generator.setEncoding(preferences.get(GeneralPreferences.ENCODING_PREFERENCE, null));

            }

            generator.setDestDir(outputDir);
            generator.setMakePairs(true);

            for (StandardPanelComponent dataMapLine : dataMapLines) {
                if (dataMapLine.getDataMap() == map
                        && !Util.isEmptyString(dataMapLine.getSuperclassPackage().getText())) {
                    generator.setSuperPkg(dataMapLine.getSuperclassPackage().getText());
                    break;
                }
            }

            generators.add(generator);
        } catch (CayenneException exception) {
            JOptionPane.showMessageDialog(this.getView(), exception.getUnlabeledMessage());
            return null;
        }
    }

    return generators;
}

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