DATAJDBC-544 - Removes all Lombok from production code.

spring-data-jdbc/src/main/java/org/springframework/data/jdbc/core/convert/ArrayUtil.java

@@ -15,16 +15,17 @@
  */
 package org.springframework.data.jdbc.core.convert;
 
-import lombok.experimental.UtilityClass;
-
 /**
  * A collection of utility methods for dealing with arrays.
  *
  * @author Jens Schauder
  * @since 1.1
  */
-@UtilityClass
-class ArrayUtil {
+final class ArrayUtil {
+
+	private ArrayUtil() {
+		throw new UnsupportedOperationException("This is a utility class and cannot be instantiated");
+	}
 
 	/**
 	 * Converts an {@code Byte[]} into a {@code byte[]}.

spring-data-jdbc/src/main/java/org/springframework/data/jdbc/core/convert/JdbcValue.java

@@ -15,21 +15,57 @@
  */
 package org.springframework.data.jdbc.core.convert;
 
-import lombok.Value;
-
 import java.sql.JDBCType;
+import java.util.Objects;
+
+import org.springframework.lang.Nullable;
 
 /**
  * Wraps a value with the JDBCType that should be used to pass it as a bind parameter to a
- * {@link java.sql.PreparedStatement}. Register a converter from any type to {@link JdbcValue} in order to control
- * the value and the {@link JDBCType} as which a value should get passed to the JDBC driver.
+ * {@link java.sql.PreparedStatement}. Register a converter from any type to {@link JdbcValue} in order to control the
+ * value and the {@link JDBCType} as which a value should get passed to the JDBC driver.
  *
  * @author Jens Schauder
  * @since 1.1
  */
-@Value(staticConstructor = "of")
-public class JdbcValue {
+public final class JdbcValue {
 
-	Object value;
-	JDBCType jdbcType;
+	private final Object value;
+	private final JDBCType jdbcType;
+
+	private JdbcValue(@Nullable Object value, @Nullable JDBCType jdbcType) {
+
+		this.value = value;
+		this.jdbcType = jdbcType;
+	}
+
+	public static JdbcValue of(@Nullable Object value, @Nullable JDBCType jdbcType) {
+		return new JdbcValue(value, jdbcType);
+	}
+
+	@Nullable
+	public Object getValue() {
+		return this.value;
+	}
+
+	@Nullable
+	public JDBCType getJdbcType() {
+		return this.jdbcType;
+	}
+
+	@Override
+	public boolean equals(Object o) {
+
+		if (this == o)
+			return true;
+		if (o == null || getClass() != o.getClass())
+			return false;
+		JdbcValue jdbcValue = (JdbcValue) o;
+		return Objects.equals(value, jdbcValue.value) && jdbcType == jdbcValue.jdbcType;
+	}
+
+	@Override
+	public int hashCode() {
+		return Objects.hash(value, jdbcType);
+	}
 }

spring-data-jdbc/src/main/java/org/springframework/data/jdbc/core/convert/MapEntityRowMapper.java

@@ -15,8 +15,6 @@
  */
 package org.springframework.data.jdbc.core.convert;
 
-import lombok.RequiredArgsConstructor;
-
 import java.sql.ResultSet;
 import java.sql.SQLException;
 import java.util.HashMap;
@@ -26,7 +24,6 @@ import org.springframework.data.relational.core.mapping.PersistentPropertyPathEx
 import org.springframework.data.relational.core.sql.IdentifierProcessing;
 import org.springframework.data.relational.core.sql.SqlIdentifier;
 import org.springframework.jdbc.core.RowMapper;
-import org.springframework.lang.NonNull;
 
 /**
  * A {@link RowMapper} that maps a row to a {@link Map.Entry} so an {@link Iterable} of those can be converted to a
@@ -35,7 +32,6 @@ import org.springframework.lang.NonNull;
  *
  * @author Jens Schauder
  */
-@RequiredArgsConstructor
 class MapEntityRowMapper<T> implements RowMapper<Map.Entry<Object, T>> {
 
 	private final PersistentPropertyPathExtension path;
@@ -44,7 +40,16 @@ class MapEntityRowMapper<T> implements RowMapper<Map.Entry<Object, T>> {
 	private final SqlIdentifier keyColumn;
 	private final IdentifierProcessing identifierProcessing;
 
-	@NonNull
+	MapEntityRowMapper(PersistentPropertyPathExtension path, JdbcConverter converter, Identifier identifier,
+			SqlIdentifier keyColumn, IdentifierProcessing identifierProcessing) {
+
+		this.path = path;
+		this.converter = converter;
+		this.identifier = identifier;
+		this.keyColumn = keyColumn;
+		this.identifierProcessing = identifierProcessing;
+	}
+
 	@Override
 	public Map.Entry<Object, T> mapRow(ResultSet rs, int rowNum) throws SQLException {
 

spring-data-jdbc/src/main/java/org/springframework/data/jdbc/core/convert/SqlGenerator.java

@@ -15,13 +15,6 @@
  */
 package org.springframework.data.jdbc.core.convert;
 
-import lombok.Value;
-
-import java.util.*;
-import java.util.function.Function;
-import java.util.regex.Pattern;
-import java.util.stream.Collectors;
-
 import org.springframework.data.domain.Pageable;
 import org.springframework.data.domain.Sort;
 import org.springframework.data.jdbc.repository.support.SimpleJdbcRepository;
@@ -41,6 +34,11 @@ import org.springframework.data.util.Lazy;
 import org.springframework.lang.Nullable;
 import org.springframework.util.Assert;
 
+import java.util.*;
+import java.util.function.Function;
+import java.util.regex.Pattern;
+import java.util.stream.Collectors;
+
 /**
  * Generates SQL statements to be used by {@link SimpleJdbcRepository}
  *
@@ -722,11 +720,60 @@ class SqlGenerator {
 	/**
 	 * Value object representing a {@code JOIN} association.
 	 */
-	@Value
-	static class Join {
-		Table joinTable;
-		Column joinColumn;
-		Column parentId;
+	static final class Join {
+
+		private final Table joinTable;
+		private final Column joinColumn;
+		private final Column parentId;
+
+		Join(Table joinTable, Column joinColumn, Column parentId) {
+
+			Assert.notNull( joinTable,"JoinTable must not be null.");
+			Assert.notNull( joinColumn,"JoinColumn must not be null.");
+			Assert.notNull( parentId,"ParentId must not be null.");
+
+			this.joinTable = joinTable;
+			this.joinColumn = joinColumn;
+			this.parentId = parentId;
+		}
+
+		Table getJoinTable() {
+			return this.joinTable;
+		}
+
+		Column getJoinColumn() {
+			return this.joinColumn;
+		}
+
+		Column getParentId() {
+			return this.parentId;
+		}
+
+		@Override
+		public boolean equals(Object o) {
+
+			if (this == o) return true;
+			if (o == null || getClass() != o.getClass()) return false;
+			Join join = (Join) o;
+			return joinTable.equals(join.joinTable) &&
+					joinColumn.equals(join.joinColumn) &&
+					parentId.equals(join.parentId);
+		}
+
+		@Override
+		public int hashCode() {
+			return Objects.hash(joinTable, joinColumn, parentId);
+		}
+
+		@Override
+		public String toString() {
+
+			return "Join{" +
+					"joinTable=" + joinTable +
+					", joinColumn=" + joinColumn +
+					", parentId=" + parentId +
+					'}';
+		}
 	}
 
 	/**

spring-data-jdbc/src/main/java/org/springframework/data/jdbc/core/convert/SqlGeneratorSource.java

@@ -15,12 +15,11 @@
  */
 package org.springframework.data.jdbc.core.convert;
 
-import lombok.RequiredArgsConstructor;
-
 import java.util.Map;
 
 import org.springframework.data.relational.core.dialect.Dialect;
 import org.springframework.data.relational.core.mapping.RelationalMappingContext;
+import org.springframework.util.Assert;
 import org.springframework.util.ConcurrentReferenceHashMap;
 
 /**
@@ -31,7 +30,6 @@ import org.springframework.util.ConcurrentReferenceHashMap;
  * @author Mark Paluch
  * @author Milan Milanov
  */
-@RequiredArgsConstructor
 public class SqlGeneratorSource {
 
 	private final Map<Class<?>, SqlGenerator> CACHE = new ConcurrentReferenceHashMap<>();
@@ -39,6 +37,17 @@ public class SqlGeneratorSource {
 	private final JdbcConverter converter;
 	private final Dialect dialect;
 
+	public SqlGeneratorSource(RelationalMappingContext context, JdbcConverter converter, Dialect dialect) {
+
+		Assert.notNull(context, "Context must not be null.");
+		Assert.notNull(converter, "Converter must not be null.");
+		Assert.notNull(dialect, "Dialect must not be null.");
+
+		this.context = context;
+		this.converter = converter;
+		this.dialect = dialect;
+	}
+
 	/**
 	 * @return the {@link Dialect} used by the created {@link SqlGenerator} instances. Guaranteed to be not
 	 *         {@literal null}.

spring-data-jdbc/src/main/java/org/springframework/data/jdbc/core/mapping/AggregateReference.java

@@ -15,11 +15,10 @@
  */
 package org.springframework.data.jdbc.core.mapping;
 
-import lombok.EqualsAndHashCode;
-import lombok.RequiredArgsConstructor;
-import lombok.ToString;
+import java.util.Objects;
 
 import org.springframework.lang.Nullable;
+import org.springframework.util.Assert;
 
 /**
  * A reference to the aggregate root of a different aggregate.
@@ -49,16 +48,42 @@ public interface AggregateReference<T, ID> {
 	 * @param <T>
 	 * @param <ID>
 	 */
-	@RequiredArgsConstructor
-	@EqualsAndHashCode
-	@ToString
 	class IdOnlyAggregateReference<T, ID> implements AggregateReference<T, ID> {
 
 		private final ID id;
 
+		public IdOnlyAggregateReference(ID id) {
+
+			Assert.notNull(id, "Id must not be null.");
+
+			this.id = id;
+		}
+
 		@Override
 		public ID getId() {
 			return id;
 		}
+
+		@Override
+		public boolean equals(Object o) {
+
+			if (this == o)
+				return true;
+			if (o == null || getClass() != o.getClass())
+				return false;
+			IdOnlyAggregateReference<?, ?> that = (IdOnlyAggregateReference<?, ?>) o;
+			return id.equals(that.id);
+		}
+
+		@Override
+		public int hashCode() {
+			return Objects.hash(id);
+		}
+
+		@Override
+		public String toString() {
+
+			return "IdOnlyAggregateReference{" + "id=" + id + '}';
+		}
 	}
 }

spring-data-jdbc/src/main/java/org/springframework/data/jdbc/repository/query/JdbcQueryCreator.java

@@ -15,10 +15,9 @@
  */
 package org.springframework.data.jdbc.repository.query;
 
-import lombok.Value;
-
 import java.util.ArrayList;
 import java.util.List;
+import java.util.Objects;
 
 import org.springframework.data.domain.Pageable;
 import org.springframework.data.domain.Sort;
@@ -312,10 +311,55 @@ class JdbcQueryCreator extends RelationalQueryCreator<ParametrizedQuery> {
 	/**
 	 * Value object representing a {@code JOIN} association.
 	 */
-	@Value
-	static private class Join {
-		Table joinTable;
-		Column joinColumn;
-		Column parentId;
+	static private final class Join {
+
+		private final Table joinTable;
+		private final Column joinColumn;
+		private final Column parentId;
+
+		Join(Table joinTable, Column joinColumn, Column parentId) {
+
+			Assert.notNull(joinTable, "JoinTable must not be null.");
+			Assert.notNull(joinColumn, "JoinColumn must not be null.");
+			Assert.notNull(parentId, "ParentId must not be null.");
+
+			this.joinTable = joinTable;
+			this.joinColumn = joinColumn;
+			this.parentId = parentId;
+		}
+
+		Table getJoinTable() {
+			return this.joinTable;
+		}
+
+		Column getJoinColumn() {
+			return this.joinColumn;
+		}
+
+		Column getParentId() {
+			return this.parentId;
+		}
+
+		@Override
+		public boolean equals(Object o) {
+
+			if (this == o)
+				return true;
+			if (o == null || getClass() != o.getClass())
+				return false;
+			Join join = (Join) o;
+			return joinTable.equals(join.joinTable) && joinColumn.equals(join.joinColumn) && parentId.equals(join.parentId);
+		}
+
+		@Override
+		public int hashCode() {
+			return Objects.hash(joinTable, joinColumn, parentId);
+		}
+
+		@Override
+		public String toString() {
+
+			return "Join{" + "joinTable=" + joinTable + ", joinColumn=" + joinColumn + ", parentId=" + parentId + '}';
+		}
 	}
 }

spring-data-jdbc/src/main/java/org/springframework/data/jdbc/repository/support/SimpleJdbcRepository.java

@@ -15,21 +15,18 @@
  */
 package org.springframework.data.jdbc.repository.support;
 
-import lombok.NonNull;
-import lombok.RequiredArgsConstructor;
-
-import java.util.Optional;
-import java.util.stream.Collectors;
-
 import org.springframework.data.domain.Page;
 import org.springframework.data.domain.Pageable;
 import org.springframework.data.domain.Sort;
 import org.springframework.data.jdbc.core.JdbcAggregateOperations;
 import org.springframework.data.mapping.PersistentEntity;
-import org.springframework.data.repository.CrudRepository;
 import org.springframework.data.repository.PagingAndSortingRepository;
 import org.springframework.data.util.Streamable;
 import org.springframework.transaction.annotation.Transactional;
+import org.springframework.util.Assert;
+
+import java.util.Optional;
+import java.util.stream.Collectors;
 
 /**
  * Default implementation of the {@link org.springframework.data.repository.CrudRepository} interface.
@@ -38,12 +35,20 @@ import org.springframework.transaction.annotation.Transactional;
  * @author Oliver Gierke
  * @author Milan Milanov
  */
-@RequiredArgsConstructor
 @Transactional(readOnly = true)
 public class SimpleJdbcRepository<T, ID> implements PagingAndSortingRepository<T, ID> {
 
-	private final @NonNull JdbcAggregateOperations entityOperations;
-	private final @NonNull PersistentEntity<T, ?> entity;
+	private final JdbcAggregateOperations entityOperations;
+	private final PersistentEntity<T, ?> entity;
+
+	public SimpleJdbcRepository(JdbcAggregateOperations entityOperations,PersistentEntity<T, ?> entity) {
+
+		Assert.notNull(entityOperations, "EntityOperations must not be null.");
+		Assert.notNull(entity, "Entity must not be null.");
+
+		this.entityOperations = entityOperations;
+		this.entity = entity;
+	}
 
 	/*
 	 * (non-Javadoc)

spring-data-jdbc/src/main/java/org/springframework/data/jdbc/support/JdbcUtil.java

@@ -15,8 +15,6 @@
  */
 package org.springframework.data.jdbc.support;
 
-import lombok.experimental.UtilityClass;
-
 import java.math.BigDecimal;
 import java.math.BigInteger;
 import java.sql.Date;
@@ -37,8 +35,7 @@ import org.springframework.util.Assert;
  * @author Jens Schauder
  * @author Thomas Lang
  */
-@UtilityClass
-public class JdbcUtil {
+public final class JdbcUtil {
 
 	private static final Map<Class<?>, Integer> sqlTypeMappings = new HashMap<>();
 
@@ -67,6 +64,10 @@ public class JdbcUtil {
 		sqlTypeMappings.put(Timestamp.class, Types.TIMESTAMP);
 	}
 
+	private JdbcUtil() {
+		throw new UnsupportedOperationException("This is a utility class and cannot be instantiated");
+	}
+
 	/**
 	 * Returns the {@link Types} value suitable for passing a value of the provided type to a
 	 * {@link java.sql.PreparedStatement}.

spring-data-relational/src/main/java/org/springframework/data/jdbc/core/convert/Identifier.java

@@ -15,20 +15,16 @@
  */
 package org.springframework.data.jdbc.core.convert;
 
-import lombok.AccessLevel;
-import lombok.AllArgsConstructor;
-import lombok.EqualsAndHashCode;
-import lombok.ToString;
-import lombok.Value;
-
 import java.util.ArrayList;
 import java.util.Collection;
 import java.util.Collections;
 import java.util.LinkedHashMap;
 import java.util.List;
 import java.util.Map;
+import java.util.Objects;
 
 import org.springframework.data.relational.core.sql.SqlIdentifier;
+import org.springframework.lang.Nullable;
 import org.springframework.util.Assert;
 import org.springframework.util.ClassUtils;
 
@@ -41,8 +37,6 @@ import org.springframework.util.ClassUtils;
  * @author Mark Paluch
  * @since 1.1
  */
-@EqualsAndHashCode
-@ToString
 public final class Identifier {
 
 	private static final Identifier EMPTY = new Identifier(Collections.emptyList());
@@ -185,13 +179,55 @@ public final class Identifier {
 	 *
 	 * @author Jens Schauder
 	 */
-	@Value
-	@AllArgsConstructor(access = AccessLevel.PRIVATE)
-	static class SingleIdentifierValue {
+	static final class SingleIdentifierValue {
 
-		SqlIdentifier name;
-		Object value;
-		Class<?> targetType;
+		private final SqlIdentifier name;
+		private final Object value;
+		private final Class<?> targetType;
+
+		private SingleIdentifierValue(SqlIdentifier name, @Nullable Object value, Class<?> targetType) {
+
+			Assert.notNull(name, "Name must not be null.");
+			Assert.notNull(targetType, "TargetType must not be null.");
+
+			this.name = name;
+			this.value = value;
+			this.targetType = targetType;
+		}
+
+		public SqlIdentifier getName() {
+			return this.name;
+		}
+
+		public Object getValue() {
+			return this.value;
+		}
+
+		public Class<?> getTargetType() {
+			return this.targetType;
+		}
+
+		@Override
+		public boolean equals(Object o) {
+
+			if (this == o)
+				return true;
+			if (o == null || getClass() != o.getClass())
+				return false;
+			SingleIdentifierValue that = (SingleIdentifierValue) o;
+			return name.equals(that.name) && value.equals(that.value) && targetType.equals(that.targetType);
+		}
+
+		@Override
+		public int hashCode() {
+			return Objects.hash(name, value, targetType);
+		}
+
+		@Override
+		public String toString() {
+
+			return "SingleIdentifierValue{" + "name=" + name + ", value=" + value + ", targetType=" + targetType + '}';
+		}
 	}
 
 	/**
@@ -213,7 +249,7 @@ public final class Identifier {
 		void accept(SqlIdentifier name, Object value, Class<?> targetType);
 	}
 
-	private static class StringKeyedLinkedHashMap<V> extends LinkedHashMap<SqlIdentifier,V> {
+	private static class StringKeyedLinkedHashMap<V> extends LinkedHashMap<SqlIdentifier, V> {
 
 		public StringKeyedLinkedHashMap(int initialCapacity) {
 			super(initialCapacity);
@@ -234,4 +270,24 @@ public final class Identifier {
 			return super.get(key);
 		}
 	}
+
+	@Override
+	public boolean equals(Object o) {
+
+		if (this == o) return true;
+		if (o == null || getClass() != o.getClass()) return false;
+		Identifier that = (Identifier) o;
+		return Objects.equals(parts, that.parts);
+	}
+
+	@Override
+	public int hashCode() {
+		return Objects.hash(parts);
+	}
+
+	@Override
+	public String toString() {
+
+		return "Identifier{" + "parts=" + parts + '}';
+	}
 }

spring-data-relational/src/main/java/org/springframework/data/relational/core/conversion/BasicRelationalConverter.java

@@ -15,12 +15,6 @@
  */
 package org.springframework.data.relational.core.conversion;
 
-import lombok.RequiredArgsConstructor;
-
-import java.util.Collections;
-import java.util.Optional;
-import java.util.function.Function;
-
 import org.springframework.core.convert.ConversionService;
 import org.springframework.core.convert.support.ConfigurableConversionService;
 import org.springframework.core.convert.support.DefaultConversionService;
@@ -43,6 +37,10 @@ import org.springframework.lang.Nullable;
 import org.springframework.util.Assert;
 import org.springframework.util.ClassUtils;
 
+import java.util.Collections;
+import java.util.Optional;
+import java.util.function.Function;
+
 /**
  * {@link RelationalConverter} that uses a {@link MappingContext} to apply basic conversion of relational values to
  * property values.
@@ -249,11 +247,17 @@ public class BasicRelationalConverter implements RelationalConverter {
 	 * @param <P>
 	 * @author Mark Paluch
 	 */
-	@RequiredArgsConstructor
 	class ConvertingParameterValueProvider<P extends PersistentProperty<P>> implements ParameterValueProvider<P> {
 
 		private final Function<Parameter<?, P>, Object> delegate;
 
+		ConvertingParameterValueProvider(Function<Parameter<?, P>, Object> delegate) {
+
+			Assert.notNull(delegate, "Delegate must not be null.");
+
+			this.delegate = delegate;
+		}
+
 		/*
 		 * (non-Javadoc)
 		 * @see org.springframework.data.mapping.model.ParameterValueProvider#getParameterValue(org.springframework.data.mapping.PreferredConstructor.Parameter)

spring-data-relational/src/main/java/org/springframework/data/relational/core/conversion/PathNode.java

@@ -15,8 +15,6 @@
  */
 package org.springframework.data.relational.core.conversion;
 
-import lombok.Value;
-
 import org.springframework.data.mapping.PersistentPropertyPath;
 import org.springframework.data.relational.core.mapping.RelationalPersistentProperty;
 import org.springframework.data.util.Pair;
@@ -28,34 +26,58 @@ import org.springframework.lang.Nullable;
  *
  * @author Jens Schauder
  */
-@Value
-class PathNode {
+final class PathNode {
 
 	/**
 	 * The path to this entity
 	 */
-	PersistentPropertyPath<RelationalPersistentProperty> path;
+	private final PersistentPropertyPath<RelationalPersistentProperty> path;
 
 	/**
 	 * The parent {@link PathNode}. This is {@code null} if this is the root entity.
 	 */
-	@Nullable PathNode parent;
+	@Nullable private final PathNode parent;
 
 	/**
 	 * The value of the entity.
 	 */
-	Object value;
+	private final Object value;
+
+	PathNode(PersistentPropertyPath<RelationalPersistentProperty> path, @Nullable PathNode parent, Object value) {
+
+		this.path = path;
+		this.parent = parent;
+		this.value = value;
+	}
 
 	/**
 	 * If the node represents a qualified property (i.e. a {@link java.util.List} or {@link java.util.Map}) the actual
 	 * value is an element of the {@literal List} or a value of the {@literal Map}, while the {@link #value} is actually a
 	 * {@link Pair} with the index or key as the first element and the actual value as second element.
-	 *
 	 */
 	Object getActualValue() {
 
 		return getPath().getRequiredLeafProperty().isQualified() //
-				? ((Pair) getValue()).getSecond() //
+				? ((Pair<?,?>) getValue()).getSecond() //
 				: getValue();
 	}
+
+	public PersistentPropertyPath<RelationalPersistentProperty> getPath() {
+		return this.path;
+	}
+
+	@Nullable
+	public PathNode getParent() {
+		return this.parent;
+	}
+
+	public Object getValue() {
+		return this.value;
+	}
+
+	@Override
+	public String toString() {
+
+		return "PathNode{" + "path=" + path + ", parent=" + parent + ", value=" + value + '}';
+	}
 }

spring-data-relational/src/main/java/org/springframework/data/relational/core/dialect/AbstractDialect.java

@@ -15,8 +15,6 @@
  */
 package org.springframework.data.relational.core.dialect;
 
-import lombok.RequiredArgsConstructor;
-
 import java.util.OptionalLong;
 import java.util.function.Function;
 
@@ -74,8 +72,7 @@ public abstract class AbstractDialect implements Dialect {
 		Function<Select, ? extends CharSequence> afterOrderByLimit = getAfterOrderByLimit();
 		Function<Select, ? extends CharSequence> afterOrderByLock = getAfterOrderByLock();
 
-		return select -> String.valueOf(afterOrderByLimit.apply(select)) +
-				afterOrderByLock.apply(select);
+		return select -> String.valueOf(afterOrderByLimit.apply(select)) + afterOrderByLock.apply(select);
 	}
 
 	private Function<Select, ? extends CharSequence> getAfterOrderByLimit() {
@@ -109,8 +106,7 @@ public abstract class AbstractDialect implements Dialect {
 		private final Function<Select, ? extends CharSequence> afterFromTable;
 		private final Function<Select, ? extends CharSequence> afterOrderBy;
 
-		DialectSelectRenderContext(
-				Function<Select, ? extends CharSequence> afterFromTable,
+		DialectSelectRenderContext(Function<Select, ? extends CharSequence> afterFromTable,
 				Function<Select, ? extends CharSequence> afterOrderBy) {
 
 			this.afterFromTable = afterFromTable;
@@ -139,11 +135,14 @@ public abstract class AbstractDialect implements Dialect {
 	/**
 	 * After {@code ORDER BY} function rendering the {@link LimitClause}.
 	 */
-	@RequiredArgsConstructor
 	static class AfterOrderByLimitRenderFunction implements Function<Select, CharSequence> {
 
 		private final LimitClause clause;
 
+		public AfterOrderByLimitRenderFunction(LimitClause clause) {
+			this.clause = clause;
+		}
+
 		/*
 		 * (non-Javadoc)
 		 * @see java.util.function.Function#apply(java.lang.Object)
@@ -173,11 +172,14 @@ public abstract class AbstractDialect implements Dialect {
 	/**
 	 * {@code LOCK} function rendering the {@link LockClause}.
 	 */
-	@RequiredArgsConstructor
 	static class LockRenderFunction implements Function<Select, CharSequence> {
 
 		private final LockClause clause;
 
+		public LockRenderFunction(LockClause clause) {
+			this.clause = clause;
+		}
+
 		/*
 		 * (non-Javadoc)
 		 * @see java.util.function.Function#apply(java.lang.Object)
@@ -198,7 +200,6 @@ public abstract class AbstractDialect implements Dialect {
 	/**
 	 * Prepends a non-empty rendering result with a leading whitespace,
 	 */
-	@RequiredArgsConstructor
 	enum PrependWithLeadingWhitespace implements Function<CharSequence, CharSequence> {
 
 		INSTANCE;

spring-data-relational/src/main/java/org/springframework/data/relational/core/dialect/AnsiDialect.java

@@ -15,8 +15,6 @@
  */
 package org.springframework.data.relational.core.dialect;
 
-import lombok.RequiredArgsConstructor;
-
 import org.springframework.data.relational.core.sql.IdentifierProcessing;
 import org.springframework.data.relational.core.sql.LockOptions;
 import org.springframework.util.Assert;
@@ -127,7 +125,6 @@ public class AnsiDialect extends AbstractDialect {
 		return ARRAY_COLUMNS;
 	}
 
-	@RequiredArgsConstructor
 	static class AnsiArrayColumns implements ArrayColumns {
 
 		/*

spring-data-relational/src/main/java/org/springframework/data/relational/core/dialect/H2Dialect.java

@@ -15,8 +15,6 @@
  */
 package org.springframework.data.relational.core.dialect;
 
-import lombok.RequiredArgsConstructor;
-
 import org.springframework.data.relational.core.sql.IdentifierProcessing;
 import org.springframework.data.relational.core.sql.IdentifierProcessing.LetterCasing;
 import org.springframework.data.relational.core.sql.IdentifierProcessing.Quoting;
@@ -107,7 +105,6 @@ public class H2Dialect extends AbstractDialect {
 		return ARRAY_COLUMNS;
 	}
 
-	@RequiredArgsConstructor
 	static class H2ArrayColumns implements ArrayColumns {
 
 		/*

spring-data-relational/src/main/java/org/springframework/data/relational/core/dialect/PostgresDialect.java

@@ -15,19 +15,16 @@
  */
 package org.springframework.data.relational.core.dialect;
 
-import lombok.RequiredArgsConstructor;
+import java.util.List;
 
-import org.springframework.data.relational.core.sql.From;
 import org.springframework.data.relational.core.sql.IdentifierProcessing;
-import org.springframework.data.relational.core.sql.IdentifierProcessing.LetterCasing;
-import org.springframework.data.relational.core.sql.IdentifierProcessing.Quoting;
 import org.springframework.data.relational.core.sql.LockOptions;
 import org.springframework.data.relational.core.sql.Table;
+import org.springframework.data.relational.core.sql.IdentifierProcessing.LetterCasing;
+import org.springframework.data.relational.core.sql.IdentifierProcessing.Quoting;
 import org.springframework.util.Assert;
 import org.springframework.util.ClassUtils;
 
-import java.util.List;
-
 /**
  * An SQL dialect for Postgres.
  *
@@ -159,7 +156,6 @@ public class PostgresDialect extends AbstractDialect {
 		}
 	};
 
-	@RequiredArgsConstructor
 	static class PostgresArrayColumns implements ArrayColumns {
 
 		/*

spring-data-relational/src/main/java/org/springframework/data/relational/core/dialect/RenderContextFactory.java

@@ -15,8 +15,6 @@
  */
 package org.springframework.data.relational.core.dialect;
 
-import lombok.RequiredArgsConstructor;
-
 import org.springframework.data.relational.core.sql.IdentifierProcessing;
 import org.springframework.data.relational.core.sql.render.NamingStrategies;
 import org.springframework.data.relational.core.sql.render.RenderContext;
@@ -75,15 +73,23 @@ public class RenderContextFactory {
 	/**
 	 * {@link RenderContext} derived from {@link Dialect} specifics.
 	 */
-	@RequiredArgsConstructor
 	static class DialectRenderContext implements RenderContext {
 
 		private final RenderNamingStrategy renderNamingStrategy;
-
 		private final IdentifierProcessing identifierProcessing;
-
 		private final SelectRenderContext selectRenderContext;
 
+		DialectRenderContext(RenderNamingStrategy renderNamingStrategy, IdentifierProcessing identifierProcessing, SelectRenderContext selectRenderContext) {
+
+			Assert.notNull(renderNamingStrategy, "RenderNamingStrategy must not be null");
+			Assert.notNull(identifierProcessing, "IdentifierProcessing must not be null");
+			Assert.notNull(selectRenderContext, "SelectRenderContext must not be null");
+
+			this.renderNamingStrategy = renderNamingStrategy;
+			this.identifierProcessing = identifierProcessing;
+			this.selectRenderContext = selectRenderContext;
+		}
+
 		/*
 		 * (non-Javadoc)
 		 * @see org.springframework.data.relational.core.sql.render.RenderContext#getNamingStrategy()

spring-data-relational/src/main/java/org/springframework/data/relational/core/mapping/PersistentPropertyPathExtension.java

@@ -15,8 +15,6 @@
  */
 package org.springframework.data.relational.core.mapping;
 
-import lombok.EqualsAndHashCode;
-
 import org.springframework.data.mapping.PersistentProperty;
 import org.springframework.data.mapping.PersistentPropertyPath;
 import org.springframework.data.mapping.context.MappingContext;
@@ -26,6 +24,8 @@ import org.springframework.data.util.Lazy;
 import org.springframework.lang.Nullable;
 import org.springframework.util.Assert;
 
+import java.util.Objects;
+
 /**
  * A wrapper around a {@link org.springframework.data.mapping.PersistentPropertyPath} for making common operations
  * available used in SQL generation and conversion
@@ -33,7 +33,6 @@ import org.springframework.util.Assert;
  * @author Jens Schauder
  * @since 1.1
  */
-@EqualsAndHashCode(exclude = { "columnAlias", "context" })
 public class PersistentPropertyPathExtension {
 
 	private final RelationalPersistentEntity<?> entity;
@@ -436,4 +435,18 @@ public class PersistentPropertyPathExtension {
 				: columnName.transform(name -> tableAlias.getReference(IdentifierProcessing.NONE) + "_" + name);
 	}
 
+	@Override
+	public boolean equals(Object o) {
+
+		if (this == o) return true;
+		if (o == null || getClass() != o.getClass()) return false;
+		PersistentPropertyPathExtension that = (PersistentPropertyPathExtension) o;
+		return entity.equals(that.entity) &&
+				path.equals(that.path);
+	}
+
+	@Override
+	public int hashCode() {
+		return Objects.hash(entity, path);
+	}
 }

spring-data-relational/src/main/java/org/springframework/data/relational/core/mapping/RelationalMappingContext.java

@@ -15,8 +15,6 @@
  */
 package org.springframework.data.relational.core.mapping;
 
-import lombok.Getter;
-
 import org.springframework.data.mapping.context.AbstractMappingContext;
 import org.springframework.data.mapping.context.MappingContext;
 import org.springframework.data.mapping.model.Property;
@@ -36,7 +34,7 @@ import org.springframework.util.Assert;
 public class RelationalMappingContext
 		extends AbstractMappingContext<RelationalPersistentEntity<?>, RelationalPersistentProperty> {
 
-	@Getter private final NamingStrategy namingStrategy;
+	private final NamingStrategy namingStrategy;
 	private boolean forceQuote = true;
 
 	/**
@@ -107,4 +105,8 @@ public class RelationalMappingContext
 
 		return persistentProperty;
 	}
+
+	public NamingStrategy getNamingStrategy() {
+		return this.namingStrategy;
+	}
 }

spring-data-relational/src/main/java/org/springframework/data/relational/core/mapping/event/RelationalAuditingCallback.java

@@ -15,12 +15,10 @@
  */
 package org.springframework.data.relational.core.mapping.event;
 
-import lombok.RequiredArgsConstructor;
-
 import org.springframework.context.ApplicationListener;
 import org.springframework.core.Ordered;
 import org.springframework.data.auditing.IsNewAwareAuditingHandler;
-import org.springframework.data.relational.core.mapping.event.BeforeConvertCallback;
+import org.springframework.util.Assert;
 
 /**
  * {@link BeforeConvertCallback} to capture auditing information on persisting and updating entities.
@@ -31,7 +29,6 @@ import org.springframework.data.relational.core.mapping.event.BeforeConvertCallb
  * @author Mark Paluch
  * @since 1.1
  */
-@RequiredArgsConstructor
 public class RelationalAuditingCallback implements BeforeConvertCallback<Object>, Ordered {
 
 	/**
@@ -45,6 +42,13 @@ public class RelationalAuditingCallback implements BeforeConvertCallback<Object>
 
 	private final IsNewAwareAuditingHandler handler;
 
+	public RelationalAuditingCallback(IsNewAwareAuditingHandler handler) {
+
+		Assert.notNull(handler, "Handler must not be null;");
+
+		this.handler = handler;
+	}
+
 	/*
 	 * (non-Javadoc)
 	 * @see org.springframework.core.Ordered#getOrder()

spring-data-relational/src/main/java/org/springframework/data/relational/core/sql/render/NamingStrategies.java

@@ -15,16 +15,14 @@
  */
 package org.springframework.data.relational.core.sql.render;
 
-import lombok.RequiredArgsConstructor;
-
-import java.util.Locale;
-import java.util.function.Function;
-
 import org.springframework.data.relational.core.sql.Column;
 import org.springframework.data.relational.core.sql.SqlIdentifier;
 import org.springframework.data.relational.core.sql.Table;
 import org.springframework.util.Assert;
 
+import java.util.Locale;
+import java.util.function.Function;
+
 /**
  * Factory for {@link RenderNamingStrategy} objects.
  *
@@ -115,12 +113,17 @@ public abstract class NamingStrategies {
 		INSTANCE;
 	}
 
-	@RequiredArgsConstructor
 	static class DelegatingRenderNamingStrategy implements RenderNamingStrategy {
 
 		private final RenderNamingStrategy delegate;
 		private final Function<String, String> mappingFunction;
 
+		DelegatingRenderNamingStrategy(RenderNamingStrategy delegate, Function<String, String> mappingFunction) {
+
+			this.delegate = delegate;
+			this.mappingFunction = mappingFunction;
+		}
+
 		@Override
 		public SqlIdentifier getName(Column column) {
 			return delegate.getName(column).transform(mappingFunction::apply);

spring-data-relational/src/main/java/org/springframework/data/relational/core/sql/render/SimpleRenderContext.java

@@ -15,8 +15,6 @@
  */
 package org.springframework.data.relational.core.sql.render;
 
-import lombok.Value;
-
 import org.springframework.data.relational.core.sql.IdentifierProcessing;
 
 /**
@@ -25,11 +23,14 @@ import org.springframework.data.relational.core.sql.IdentifierProcessing;
  * @author Mark Paluch
  * @since 1.1
  */
-@Value
-class SimpleRenderContext implements RenderContext {
+final class SimpleRenderContext implements RenderContext {
 
 	private final RenderNamingStrategy namingStrategy;
 
+	SimpleRenderContext(RenderNamingStrategy namingStrategy) {
+		this.namingStrategy = namingStrategy;
+	}
+
 	@Override
 	public IdentifierProcessing getIdentifierProcessing() {
 		return IdentifierProcessing.NONE;
@@ -40,6 +41,18 @@ class SimpleRenderContext implements RenderContext {
 		return DefaultSelectRenderContext.INSTANCE;
 	}
 
+	public RenderNamingStrategy getNamingStrategy() {
+		return this.namingStrategy;
+	}
+
+	@Override
+	public String toString() {
+
+		return "SimpleRenderContext{" +
+				"namingStrategy=" + namingStrategy +
+				'}';
+	}
+
 	enum DefaultSelectRenderContext implements SelectRenderContext {
 		INSTANCE;
 	}

spring-data-relational/src/main/java/org/springframework/data/relational/repository/query/SimpleRelationalEntityMetadata.java

@@ -15,8 +15,6 @@
  */
 package org.springframework.data.relational.repository.query;
 
-import lombok.Getter;
-
 import org.springframework.data.relational.core.mapping.RelationalPersistentEntity;
 import org.springframework.data.relational.core.sql.SqlIdentifier;
 import org.springframework.util.Assert;
@@ -29,7 +27,7 @@ import org.springframework.util.Assert;
 public class SimpleRelationalEntityMetadata<T> implements RelationalEntityMetadata<T> {
 
 	private final Class<T> type;
-	private final @Getter RelationalPersistentEntity<?> tableEntity;
+	private final RelationalPersistentEntity<?> tableEntity;
 
 	/**
 	 * Creates a new {@link SimpleRelationalEntityMetadata} using the given type and {@link RelationalPersistentEntity} to
@@ -60,4 +58,8 @@ public class SimpleRelationalEntityMetadata<T> implements RelationalEntityMetada
 	public SqlIdentifier getTableName() {
 		return tableEntity.getTableName();
 	}
+
+	public RelationalPersistentEntity<?> getTableEntity() {
+		return this.tableEntity;
+	}
 }