Groovy example source code file (TableModelFactory.groovy)

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Java - Groovy tags/keywords

abstractfactory, bean, boolean, class, class, closure, closure, defaulttablemodel, defaulttablemodel, gui, illegalaccessexception, instantiationexception, javabean, jtable, map, object, object, swing, table, valuemodel

The Groovy TableModelFactory.groovy source code

/*
 * Copyright 2003-2009 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package groovy.swing.factory

import groovy.model.DefaultTableModel
import groovy.model.ValueHolder
import groovy.model.ValueModel
import java.beans.PropertyChangeListener
import java.beans.PropertyChangeEvent
import javax.swing.JTable
import javax.swing.table.TableModel

public class TableModelFactory extends AbstractFactory {
    
    public Object newInstance(FactoryBuilderSupport builder, Object name, Object value, Map attributes) throws InstantiationException, IllegalAccessException {
        if (FactoryBuilderSupport.checkValueIsType(value, name, TableModel.class)) {
            return value;
        } else if (attributes.get(name) instanceof TableModel) {
            return attributes.remove(name);
        } else {
            ValueModel model = (ValueModel) attributes.remove("model");
            if (model == null) {
                Object list = attributes.remove("list");
                if (list == null) {
                    list = new ArrayList();
                }
                model = new ValueHolder(list);
            }
            return new DefaultTableModel(model);
        }
    }

    public void onNodeCompleted(FactoryBuilderSupport builder, Object parent, Object node) {
        if ((node.columnCount > 0) && (parent instanceof JTable)) {
            parent.autoCreateColumnsFromModel = false;
            PropertyChangeListener listener = {e ->
                    if ((e.propertyName == 'model') && e.newValue instanceof DefaultTableModel) {
                        e.source.columnModel = e.newValue.columnModel
                        e.source.revalidate()
                        e.source.repaint()
                    }
                } as PropertyChangeListener;

            parent.addPropertyChangeListener('model', listener)
            builder.addDisposalClosure( {parent.removePropertyChangeListener('model', listener)})

            // the table has already set the model, so fire the listener manually
            listener.propertyChange(new PropertyChangeEvent(parent, 'model', null, node)) 
        }
    }
}

public class PropertyColumnFactory extends AbstractFactory {

    public Object newInstance(FactoryBuilderSupport builder, Object name, Object value, Map attributes) throws InstantiationException, IllegalAccessException {
        FactoryBuilderSupport.checkValueIsNull(value, name);
        Object current = builder.getCurrent();
        if (current instanceof DefaultTableModel) {
            DefaultTableModel model = (DefaultTableModel) current;
            String property = (String) attributes.remove("propertyName");
            if (property == null) {
                throw new IllegalArgumentException("Must specify a property for a propertyColumn");
            }
            Object header = attributes.remove("header");
            if (header == null) {
                header = "";
            }
            Class type = (Class) attributes.remove("type");
            if (type == null) {
                type = Object.class;
            }
            Boolean editable = (Boolean) attributes.remove("editable");
            if (editable == null) {
                editable = Boolean.TRUE;
            }
            return model.addPropertyColumn(header, property, type, editable.booleanValue());
        } else {
            throw new RuntimeException("propertyColumn must be a child of a tableModel");
        }
    }
}

public class ClosureColumnFactory extends AbstractFactory {

    public Object newInstance(FactoryBuilderSupport builder, Object name, Object value, Map attributes) throws InstantiationException, IllegalAccessException {
        FactoryBuilderSupport.checkValueIsNull(value, name);
        Object current = builder.getCurrent();
        if (current instanceof DefaultTableModel) {
            DefaultTableModel model = (DefaultTableModel) current;
            Object header = attributes.remove("header");
            if (header == null) {
                header = "";
            }
            Closure readClosure = (Closure) attributes.remove("read");
            if (readClosure == null) {
                throw new IllegalArgumentException("Must specify 'read' Closure property for a closureColumn");
            }
            Closure writeClosure = (Closure) attributes.remove("write");
            Class type = (Class) attributes.remove("type");
            if (type == null) {
                type = Object.class;
            }
            return model.addClosureColumn(header, readClosure, writeClosure, type);
        } else {
            throw new RuntimeException("closureColumn must be a child of a tableModel");
        }
    }
}