Polishing: Add final at private field

Author: kazuki43zoo

src/main/java/org/apache/ibatis/builder/MapperBuilderAssistant.java

@@ -55,7 +55,7 @@
 public class MapperBuilderAssistant extends BaseBuilder {
 
   private String currentNamespace;
-  private String resource;
+  private final String resource;
   private Cache currentCache;
   private boolean unresolvedCacheRef; // issue #676
 

src/main/java/org/apache/ibatis/builder/ResultMapResolver.java

@@ -1,5 +1,5 @@
 /**
- *    Copyright 2009-2015 the original author or authors.
+ *    Copyright 2009-2017 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.
@@ -26,12 +26,12 @@
  */
 public class ResultMapResolver {
   private final MapperBuilderAssistant assistant;
-  private String id;
-  private Class<?> type;
-  private String extend;
-  private Discriminator discriminator;
-  private List<ResultMapping> resultMappings;
-  private Boolean autoMapping;
+  private final String id;
+  private final Class<?> type;
+  private final String extend;
+  private final Discriminator discriminator;
+  private final List<ResultMapping> resultMappings;
+  private final Boolean autoMapping;
 
   public ResultMapResolver(MapperBuilderAssistant assistant, String id, Class<?> type, String extend, Discriminator discriminator, List<ResultMapping> resultMappings, Boolean autoMapping) {
     this.assistant = assistant;

src/main/java/org/apache/ibatis/builder/StaticSqlSource.java

@@ -1,5 +1,5 @@
 /**
- *    Copyright 2009-2015 the original author or authors.
+ *    Copyright 2009-2017 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.
@@ -27,9 +27,9 @@
  */
 public class StaticSqlSource implements SqlSource {
 
-  private String sql;
-  private List<ParameterMapping> parameterMappings;
-  private Configuration configuration;
+  private final String sql;
+  private final List<ParameterMapping> parameterMappings;
+  private final Configuration configuration;
 
   public StaticSqlSource(Configuration configuration, String sql) {
     this(configuration, sql, null);

src/main/java/org/apache/ibatis/builder/annotation/MapperAnnotationBuilder.java

@@ -97,9 +97,9 @@ public class MapperAnnotationBuilder {
   private final Set<Class<? extends Annotation>> sqlAnnotationTypes = new HashSet<Class<? extends Annotation>>();
   private final Set<Class<? extends Annotation>> sqlProviderAnnotationTypes = new HashSet<Class<? extends Annotation>>();
 
-  private Configuration configuration;
-  private MapperBuilderAssistant assistant;
-  private Class<?> type;
+  private final Configuration configuration;
+  private final MapperBuilderAssistant assistant;
+  private final Class<?> type;
 
   public MapperAnnotationBuilder(Configuration configuration, Class<?> type) {
     String resource = type.getName().replace('.', '/') + ".java (best guess)";

src/main/java/org/apache/ibatis/builder/annotation/MethodResolver.java

@@ -1,5 +1,5 @@
 /**
- *    Copyright 2009-2015 the original author or authors.
+ *    Copyright 2009-2017 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.
@@ -22,7 +22,7 @@
  */
 public class MethodResolver {
   private final MapperAnnotationBuilder annotationBuilder;
-  private Method method;
+  private final Method method;
 
   public MethodResolver(MapperAnnotationBuilder annotationBuilder, Method method) {
     this.annotationBuilder = annotationBuilder;

src/main/java/org/apache/ibatis/builder/annotation/ProviderSqlSource.java

@@ -1,5 +1,5 @@
 /**
- *    Copyright 2009-2016 the original author or authors.
+ *    Copyright 2009-2017 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.
@@ -32,8 +32,8 @@
  */
 public class ProviderSqlSource implements SqlSource {
 
-  private SqlSourceBuilder sqlSourceParser;
-  private Class<?> providerType;
+  private final SqlSourceBuilder sqlSourceParser;
+  private final Class<?> providerType;
   private Method providerMethod;
   private String[] providerMethodArgumentNames;
 

src/main/java/org/apache/ibatis/builder/xml/XMLConfigBuilder.java

@@ -54,9 +54,9 @@
 public class XMLConfigBuilder extends BaseBuilder {
 
   private boolean parsed;
-  private XPathParser parser;
+  private final XPathParser parser;
   private String environment;
-  private ReflectorFactory localReflectorFactory = new DefaultReflectorFactory();
+  private final ReflectorFactory localReflectorFactory = new DefaultReflectorFactory();
 
   public XMLConfigBuilder(Reader reader) {
     this(reader, null, null);

src/main/java/org/apache/ibatis/builder/xml/XMLMapperBuilder.java

@@ -52,10 +52,10 @@
  */
 public class XMLMapperBuilder extends BaseBuilder {
 
-  private XPathParser parser;
-  private MapperBuilderAssistant builderAssistant;
-  private Map<String, XNode> sqlFragments;
-  private String resource;
+  private final XPathParser parser;
+  private final MapperBuilderAssistant builderAssistant;
+  private final Map<String, XNode> sqlFragments;
+  private final String resource;
 
   @Deprecated
   public XMLMapperBuilder(Reader reader, Configuration configuration, String resource, Map<String, XNode> sqlFragments, String namespace) {

src/main/java/org/apache/ibatis/builder/xml/XMLStatementBuilder.java

@@ -38,9 +38,9 @@
  */
 public class XMLStatementBuilder extends BaseBuilder {
 
-  private MapperBuilderAssistant builderAssistant;
-  private XNode context;
-  private String requiredDatabaseId;
+  private final MapperBuilderAssistant builderAssistant;
+  private final XNode context;
+  private final String requiredDatabaseId;
 
   public XMLStatementBuilder(Configuration configuration, MapperBuilderAssistant builderAssistant, XNode context) {
     this(configuration, builderAssistant, context, null);

src/main/java/org/apache/ibatis/cache/CacheKey.java

@@ -33,7 +33,7 @@ public class CacheKey implements Cloneable, Serializable {
   private static final int DEFAULT_MULTIPLYER = 37;
   private static final int DEFAULT_HASHCODE = 17;
 
-  private int multiplier;
+  private final int multiplier;
   private int hashcode;
   private long checksum;
   private int count;