improve naming

Author: Andrew Pikler

parquet-column/src/main/java/org/apache/parquet/column/impl/ColumnReaderBase.java

@@ -453,7 +453,7 @@ void writeValue() {
     this.writerVersion = writerVersion;
     this.maxDefinitionLevel = path.getMaxDefinitionLevel();
     DictionaryPage dictionaryPage = pageReader.readDictionaryPage();
-    this.dictionary = dictionaryPage == null ? null : dictionaryPage.getDictionary(path);
+    this.dictionary = dictionaryPage == null ? null : dictionaryPage.decode(path);
     if (dictionary != null && converter.hasDictionarySupport()) {
       converter.setDictionary(dictionary);
     }

parquet-column/src/main/java/org/apache/parquet/column/page/DictionaryPage.java

@@ -80,7 +80,7 @@ public DictionaryPage copy() throws IOException {
   /**
    * @return the decoded dictionary
    */
-  public Dictionary getDictionary(ColumnDescriptor path) {
+  public Dictionary decode(ColumnDescriptor path) {
     try {
       return getEncoding().initDictionary(path, this);
     } catch (IOException e) {