List of usage examples for java.util Collection clear
void clear();
From source file:ResourceBundleSupport.java
/** * Returns a new collection containing clones of all the items in the * specified collection.//from w ww . j a v a 2s . com * * @param collection the collection (<code>null</code> not permitted). * @return A new collection containing clones of all the items in the * specified collection. * @throws CloneNotSupportedException if any of the items in the collection * cannot be cloned. */ public static Collection deepClone(final Collection collection) throws CloneNotSupportedException { if (collection == null) { throw new IllegalArgumentException("Null 'collection' argument."); } // all JDK-Collections are cloneable ... // and if the collection is not clonable, then we should throw // a CloneNotSupportedException anyway ... final Collection result = (Collection) ObjectUtilities.clone(collection); result.clear(); final Iterator iterator = collection.iterator(); while (iterator.hasNext()) { final Object item = iterator.next(); if (item != null) { result.add(clone(item)); } else { result.add(null); } } return result; }
From source file:org.atemsource.atem.impl.common.attribute.collection.AbstractCollectionAttributeImpl.java
public void clear(Object entity) { Collection<J> elements = getElements(entity); if (elements != null) { elements.clear(); } else {/*from w ww .j av a2 s . com*/ try { setValue(entity, createEmptyCollection()); } catch (Exception e) { throw new TechnicalException("cannot instantiate collection", e); } } }
From source file:org.jdto.mergers.PropertyCollectionMerger.java
private Collection getCollectionToReturn(Collection value) { try {/*ww w. j a v a 2 s . c o m*/ Collection ret = null; if (value instanceof Cloneable) { ret = (Collection) ObjectUtils.clone(value); ret.clear(); } else { //try to create a new instance of the collection ret = BeanClassUtils.createInstance(value.getClass()); } return ret; } catch (Exception ex) { logger.error("Exception while trying to instantiate collection", ex); throw new RuntimeException(ex); } }
From source file:org.openmrs.module.webservices.rest.web.resource.impl.BaseDelegatingConverter.java
protected void setPropertyWhichMayBeAHibernateCollection(Object instance, String propertyName, Object value) throws IllegalAccessException, InvocationTargetException, NoSuchMethodException { if (value instanceof Collection) { //We need to handle collections in a way that Hibernate can track. Collection<?> newCollection = (Collection<?>) value; Object oldValue = PropertyUtils.getProperty(instance, propertyName); if (oldValue instanceof Collection) { Collection collection = (Collection) oldValue; collection.clear(); collection.addAll(newCollection); } else {/* www .ja va 2 s. c om*/ PropertyUtils.setProperty(instance, propertyName, value); } } else { PropertyUtils.setProperty(instance, propertyName, value); } }
From source file:com.zero.service.impl.BaseServiceImpl.java
@SuppressWarnings({ "unchecked", "rawtypes" })
private void copyProperties(Object source, Object target) throws BeansException {
Assert.notNull(source, "Source must not be null");
Assert.notNull(target, "Target must not be null");
PropertyDescriptor[] targetPds = BeanUtils.getPropertyDescriptors(target.getClass());
for (PropertyDescriptor targetPd : targetPds) {
if (targetPd.getWriteMethod() != null) {
PropertyDescriptor sourcePd = BeanUtils.getPropertyDescriptor(source.getClass(),
targetPd.getName());
if (sourcePd != null && sourcePd.getReadMethod() != null) {
try {
Method readMethod = sourcePd.getReadMethod();
if (!Modifier.isPublic(readMethod.getDeclaringClass().getModifiers())) {
readMethod.setAccessible(true);
}// ww w. j a va 2 s.c om
Object sourceValue = readMethod.invoke(source);
Object targetValue = readMethod.invoke(target);
if (sourceValue != null && targetValue != null && targetValue instanceof Collection) {
Collection collection = (Collection) targetValue;
collection.clear();
collection.addAll((Collection) sourceValue);
} else {
Method writeMethod = targetPd.getWriteMethod();
if (!Modifier.isPublic(writeMethod.getDeclaringClass().getModifiers())) {
writeMethod.setAccessible(true);
}
writeMethod.invoke(target, sourceValue);
}
} catch (Throwable ex) {
throw new FatalBeanException("Could not copy properties from source to target", ex);
}
}
}
}
}
From source file:hr.fer.spocc.util.CharacterEscaper.java
/** * Unescapes the given string. The indexes of the characters * which were obtained by unescaping are added to the specified * collection (which will be cleared beforehand). * //from ww w . j av a 2 s . c o m * @param s the string to be unescaped * @param escapedIndexes the collection which will contain the indexes * of the unescaped characters * @return the unescaped string * @throws IllegalArgumentException if the string cannot be unescaped */ public String unescape(String s, Collection<Integer> escapedIndexes) throws IllegalArgumentException { if (escapedIndexes != null) escapedIndexes.clear(); boolean escapeStarted = false; StringBuilder sb = new StringBuilder(); for (int i = 0; i < s.length(); ++i) { char c = s.charAt(i); if (c == escapeCharacter && !escapeStarted) { escapeStarted = true; continue; } if (escapeStarted) { escapeStarted = false; Character unescaped = unescapeMap.get(c); Validate.notNull(unescaped, "unknown unescape pattern after on position " + i + " in string: " + s); if (unescaped != null && escapedIndexes != null) { escapedIndexes.add(sb.length()); } sb.append(unescaped != null ? unescaped : c); } else { sb.append(c); } } return sb.toString(); }
From source file:org.carewebframework.vista.ui.notification.NotificationService.java
/** * Creates a list of recipients from a list of raw data. * /*ww w . ja v a 2 s . com*/ * @param recipientData List of raw data as returned by lookup. * @param isGroup If true, the list represents mail groups. If false, it represents users. * @param filter The text used in the lookup. It will be used to limit the returned results. * @param result List of recipients. */ private void toRecipients(List<String> recipientData, boolean isGroup, String filter, Collection<Recipient> result) { result.clear(); for (String data : recipientData) { Recipient recipient = new Recipient(data, isGroup); if (StringUtils.startsWithIgnoreCase(recipient.getName(), filter)) { result.add(recipient); } else { break; } } }
From source file:net.groupbuy.service.impl.BaseServiceImpl.java
@SuppressWarnings({ "unchecked", "rawtypes" })
private void copyProperties(Object source, Object target, String[] ignoreProperties) throws BeansException {
Assert.notNull(source, "Source must not be null");
Assert.notNull(target, "Target must not be null");
PropertyDescriptor[] targetPds = BeanUtils.getPropertyDescriptors(target.getClass());
List<String> ignoreList = (ignoreProperties != null) ? Arrays.asList(ignoreProperties) : null;
for (PropertyDescriptor targetPd : targetPds) {
if (targetPd.getWriteMethod() != null
&& (ignoreProperties == null || (!ignoreList.contains(targetPd.getName())))) {
PropertyDescriptor sourcePd = BeanUtils.getPropertyDescriptor(source.getClass(),
targetPd.getName());
if (sourcePd != null && sourcePd.getReadMethod() != null) {
try {
Method readMethod = sourcePd.getReadMethod();
if (!Modifier.isPublic(readMethod.getDeclaringClass().getModifiers())) {
readMethod.setAccessible(true);
}// w w w . jav a2s. com
Object sourceValue = readMethod.invoke(source);
Object targetValue = readMethod.invoke(target);
if (sourceValue != null && targetValue != null && targetValue instanceof Collection) {
Collection collection = (Collection) targetValue;
collection.clear();
collection.addAll((Collection) sourceValue);
} else {
Method writeMethod = targetPd.getWriteMethod();
if (!Modifier.isPublic(writeMethod.getDeclaringClass().getModifiers())) {
writeMethod.setAccessible(true);
}
writeMethod.invoke(target, sourceValue);
}
} catch (Throwable ex) {
throw new FatalBeanException("Could not copy properties from source to target", ex);
}
}
}
}
}
From source file:org.hyperic.hq.measurement.server.session.Measurement.java
public void setBaseline(Baseline b) { final Collection baselines = getBaselinesBag(); if (!baselines.isEmpty()) baselines.clear(); if (b != null) baselines.add(b);// ww w.j av a 2 s .c o m }
From source file:com.vaynberg.wicket.select2.Select2MultiChoice.java
@Override public void updateModel() { Collection<T> choices = getModelObject(); Collection<T> selection = getConvertedInput(); if (choices == null) { setModelObject(selection);// w w w.j a v a 2s. c om } else { choices.clear(); choices.addAll(selection); setModelObject(choices); } }