| Methods Summary |
|---|
| private org.apache.taglibs.standard.tag.common.core.ForEachSupport$ForEachIterator | beginEndForEachIterator()
/*
* To plug into existing support, we need to keep 'begin', 'end',
* and 'step' as they are. So we'll simply create an Integer[]
* from 0 to 'end', inclusive, and let the existing implementation
* handle the subsetting and stepping operations. (Other than
* localizing the cost of creating this Integer[] to the start
* of the operation instead of spreading it out over the lifetime
* of the iteration, this implementation isn't worse than one that
* created new Integers() as needed from next(). Such an adapter
* to ForEachIterator could easily be written but, like I said,
* wouldn't provide much benefit.)
*/
Integer[] ia = new Integer[end + 1];
for (int i = 0; i <= end; i++)
ia[i] = Integer.valueOf(i);
return new SimpleForEachIterator(Arrays.asList(ia).iterator());
|
| protected boolean | hasNext()
return items.hasNext();
|
| protected java.lang.Object | next()
return items.next();
|
| protected void | prepare()
// produce the right sort of ForEachIterator
if (rawItems != null) {
// If this is a deferred expression, make a note and get
// the 'items' instance.
if (rawItems instanceof ValueExpression) {
deferredExpression = (ValueExpression) rawItems;
rawItems = deferredExpression.getValue(
pageContext.getELContext());
if (rawItems == null) {
// Simulate an empty list
rawItems = new ArrayList();
}
}
// extract an iterator over the 'items' we've got
items = supportedTypeForEachIterator(rawItems);
} else {
// no 'items', so use 'begin' and 'end'
items = beginEndForEachIterator();
}
/* ResultSet no more supported in <c:forEach>
// step must be 1 when ResultSet is passed in
if (rawItems instanceof ResultSet && step != 1)
throw new JspTagException(
Resources.getMessage("FOREACH_STEP_NO_RESULTSET"));
*/
|
| public void | release()
super.release();
items = null;
rawItems = null;
deferredExpression = null;
|
| protected org.apache.taglibs.standard.tag.common.core.ForEachSupport$ForEachIterator | supportedTypeForEachIterator(java.lang.Object o)
/*
* This is, of necessity, just a big, simple chain, matching in
* order. Since we are passed on Object because of all the
* various types we support, we cannot rely on the language's
* mechanism for resolving overloaded methods. (Method overloading
* resolves via early binding, so the type of the 'o' reference,
* not the type of the eventual value that 'o' references, is
* all that's available.)
*
* Currently, we 'match' on the object we have through an
* if/else chain that picks the first interface (or class match)
* found for an Object.
*/
ForEachIterator items;
if (o instanceof Object[])
items = toForEachIterator((Object[]) o);
else if (o instanceof boolean[])
items = toForEachIterator((boolean[]) o);
else if (o instanceof byte[])
items = toForEachIterator((byte[]) o);
else if (o instanceof char[])
items = toForEachIterator((char[]) o);
else if (o instanceof short[])
items = toForEachIterator((short[]) o);
else if (o instanceof int[])
items = toForEachIterator((int[]) o);
else if (o instanceof long[])
items = toForEachIterator((long[]) o);
else if (o instanceof float[])
items = toForEachIterator((float[]) o);
else if (o instanceof double[])
items = toForEachIterator((double[]) o);
else if (o instanceof Collection)
items = toForEachIterator((Collection) o);
else if (o instanceof Iterator)
items = toForEachIterator((Iterator) o);
else if (o instanceof Enumeration)
items = toForEachIterator((Enumeration) o);
else if (o instanceof Map)
items = toForEachIterator((Map) o);
/*
else if (o instanceof ResultSet)
items = toForEachIterator((ResultSet) o);
*/
else if (o instanceof String)
items = toForEachIterator((String) o);
else
items = toForEachIterator(o);
return (items);
|
| protected org.apache.taglibs.standard.tag.common.core.ForEachSupport$ForEachIterator | toForEachIterator(byte[] a)
Byte[] wrapped = new Byte[a.length];
for (int i = 0; i < a.length; i++)
wrapped[i] = Byte.valueOf(a[i]);
return new SimpleForEachIterator(Arrays.asList(wrapped).iterator());
|
| protected org.apache.taglibs.standard.tag.common.core.ForEachSupport$ForEachIterator | toForEachIterator(char[] a)
Character[] wrapped = new Character[a.length];
for (int i = 0; i < a.length; i++)
wrapped[i] = Character.valueOf(a[i]);
return new SimpleForEachIterator(Arrays.asList(wrapped).iterator());
|
| protected org.apache.taglibs.standard.tag.common.core.ForEachSupport$ForEachIterator | toForEachIterator(short[] a)
Short[] wrapped = new Short[a.length];
for (int i = 0; i < a.length; i++)
wrapped[i] = Short.valueOf(a[i]);
return new SimpleForEachIterator(Arrays.asList(wrapped).iterator());
|
| protected org.apache.taglibs.standard.tag.common.core.ForEachSupport$ForEachIterator | toForEachIterator(int[] a)
Integer[] wrapped = new Integer[a.length];
for (int i = 0; i < a.length; i++)
wrapped[i] = Integer.valueOf(a[i]);
return new SimpleForEachIterator(Arrays.asList(wrapped).iterator());
|
| protected org.apache.taglibs.standard.tag.common.core.ForEachSupport$ForEachIterator | toForEachIterator(long[] a)
Long[] wrapped = new Long[a.length];
for (int i = 0; i < a.length; i++)
wrapped[i] = Long.valueOf(a[i]);
return new SimpleForEachIterator(Arrays.asList(wrapped).iterator());
|
| protected org.apache.taglibs.standard.tag.common.core.ForEachSupport$ForEachIterator | toForEachIterator(float[] a)
Float[] wrapped = new Float[a.length];
for (int i = 0; i < a.length; i++)
wrapped[i] = new Float(a[i]);
return new SimpleForEachIterator(Arrays.asList(wrapped).iterator());
|
| protected org.apache.taglibs.standard.tag.common.core.ForEachSupport$ForEachIterator | toForEachIterator(double[] a)
Double[] wrapped = new Double[a.length];
for (int i = 0; i < a.length; i++)
wrapped[i] = new Double(a[i]);
return new SimpleForEachIterator(Arrays.asList(wrapped).iterator());
|
| protected org.apache.taglibs.standard.tag.common.core.ForEachSupport$ForEachIterator | toForEachIterator(java.util.Collection c)
return new SimpleForEachIterator(c.iterator());
|
| protected org.apache.taglibs.standard.tag.common.core.ForEachSupport$ForEachIterator | toForEachIterator(java.util.Iterator i)
return new SimpleForEachIterator(i);
|
| protected org.apache.taglibs.standard.tag.common.core.ForEachSupport$ForEachIterator | toForEachIterator(java.util.Enumeration e)
// local adapter
class EnumerationAdapter implements ForEachIterator {
private Enumeration e;
public EnumerationAdapter(Enumeration e) {
this.e = e;
}
public boolean hasNext() {
return e.hasMoreElements();
}
public Object next() {
return e.nextElement();
}
}
return new EnumerationAdapter(e);
|
| protected org.apache.taglibs.standard.tag.common.core.ForEachSupport$ForEachIterator | toForEachIterator(java.util.Map m)
return new SimpleForEachIterator(m.entrySet().iterator());
|
| protected org.apache.taglibs.standard.tag.common.core.ForEachSupport$ForEachIterator | toForEachIterator(java.lang.String s)
StringTokenizer st = new StringTokenizer(s, ",");
return toForEachIterator(st); // convert from Enumeration
|
| protected org.apache.taglibs.standard.tag.common.core.ForEachSupport$ForEachIterator | toForEachIterator(java.lang.Object o)
throw new JspTagException(Resources.getMessage("FOREACH_BAD_ITEMS"));
|
| protected org.apache.taglibs.standard.tag.common.core.ForEachSupport$ForEachIterator | toForEachIterator(java.lang.Object[] a)
return new SimpleForEachIterator(Arrays.asList(a).iterator());
|
| protected org.apache.taglibs.standard.tag.common.core.ForEachSupport$ForEachIterator | toForEachIterator(boolean[] a)
Boolean[] wrapped = new Boolean[a.length];
for (int i = 0; i < a.length; i++)
wrapped[i] = Boolean.valueOf(a[i]);
return new SimpleForEachIterator(Arrays.asList(wrapped).iterator());
|
