NumberTree
Overview
NumberTree is a class in Aspose.Pdf FOSS for Java.
Mutable map view over a PDF number tree (ISO 32000-1:2008, §7.9.7).
Properties
| Name | Type | Access | Description |
|---|---|---|---|
root | COSDictionary | Read | Returns the underlying root dictionary, or {@code null} if this view |
| was constructed over a {@code null} root. | |||
empty | boolean | Read | Returns whether the tree has no entries. |
Methods
| Signature | Description |
|---|---|
NumberTree(root: COSDictionary) | Wraps the given root dictionary. |
getRoot() → COSDictionary | Returns the underlying root dictionary, or {@code null} if this view |
| was constructed over a {@code null} root. | |
isEmpty() → boolean | Returns whether the tree has no entries. |
size() → int | Returns the number of (key, value) pairs in the tree. |
get(key: int) → COSBase | Looks up a key. |
containsKey(key: int) → boolean | Returns whether the tree contains the given key. |
entries() → List<Map.Entry<Integer, COSBase>> | Returns all entries in tree order (which, for a conformant tree, is |
| key-sorted order). | |
keys() → List<Integer> | Returns all keys in tree order. |
put(key: int, value: COSBase) → COSBase | Inserts or replaces a value. |
remove(key: int) → COSBase | Removes a key. |
clear() | Empties the tree. |
entriesUnmodifiable() → List<Map.Entry<Integer, COSBase>> | Returns an unmodifiable view of {@link #entries()}. |