Polishing: Remove unused fields.

Author: michael-simons

src/main/java/org/springframework/data/neo4j/core/mapping/CypherGenerator.java

@@ -44,7 +44,6 @@
 import org.neo4j.cypherdsl.core.PatternElement;
 import org.neo4j.cypherdsl.core.Property;
 import org.neo4j.cypherdsl.core.Relationship;
-import org.neo4j.cypherdsl.core.RelationshipPattern;
 import org.neo4j.cypherdsl.core.SortItem;
 import org.neo4j.cypherdsl.core.Statement;
 import org.neo4j.cypherdsl.core.StatementBuilder;
@@ -673,15 +672,4 @@ private void addMapProjection(String name, Object projection, List<Object> proje
 	private static Condition conditionOrNoCondition(@Nullable Condition condition) {
 		return condition == null ? Conditions.noCondition() : condition;
 	}
-
-	private static class RelationshipProcessState {
-		private final RelationshipPattern relationship;
-		private final boolean done;
-
-		RelationshipProcessState(RelationshipPattern relationship, boolean done) {
-			this.relationship = relationship;
-			this.done = done;
-		}
-	}
-
 }

src/main/java/org/springframework/data/neo4j/repository/config/StartupLogger.java

@@ -21,7 +21,6 @@
 import org.neo4j.driver.Driver;
 import org.springframework.core.log.LogAccessor;
 import org.springframework.data.mapping.context.AbstractMappingContext;
-import org.springframework.data.repository.config.RepositoryConfigurationExtensionSupport;
 
 /**
  * Logs startup information.
@@ -67,7 +66,7 @@ String getStartingMessage() {
 				.orElse("an unknown version of Spring Data Commons");
 		String driver = getVersionOf(Driver.class).map(v -> "Neo4j Driver v" + v)
 				.orElse("an unknown version of the Neo4j Java Driver");
-		RepositoryConfigurationExtensionSupport f;
+
 		sb.append("Bootstrapping ").append(mode.displayValue).append(" Neo4j repositories based on ").append(sdnRx)
 				.append(" with ").append(sdC).append(" and ").append(driver).append(".");
 

src/main/java/org/springframework/data/neo4j/repository/support/ReactiveNeo4jRepositoryFactoryBean.java

@@ -18,13 +18,11 @@
 import java.io.Serializable;
 
 import org.apiguardian.api.API;
-import org.springframework.data.mapping.callback.ReactiveEntityCallbacks;
 import org.springframework.data.neo4j.core.ReactiveNeo4jOperations;
 import org.springframework.data.neo4j.core.mapping.Neo4jMappingContext;
 import org.springframework.data.repository.Repository;
 import org.springframework.data.repository.core.support.RepositoryFactorySupport;
 import org.springframework.data.repository.core.support.TransactionalRepositoryFactoryBeanSupport;
-import org.springframework.lang.Nullable;
 
 /**
  * Special adapter for Springs {@link org.springframework.beans.factory.FactoryBean} interface to allow easy setup of
@@ -45,8 +43,6 @@ public final class ReactiveNeo4jRepositoryFactoryBean<T extends Repository<S, ID
 
 	private Neo4jMappingContext neo4jMappingContext;
 
-	private @Nullable ReactiveEntityCallbacks entityCallbacks;
-
 	/**
 	 * Creates a new {@link TransactionalRepositoryFactoryBeanSupport} for the given repository interface.
 	 *

src/main/java/org/springframework/data/neo4j/repository/support/SimpleReactiveNeo4jRepository.java

@@ -29,7 +29,6 @@
 import org.springframework.data.domain.Sort;
 import org.springframework.data.neo4j.core.ReactiveNeo4jOperations;
 import org.springframework.data.neo4j.core.mapping.Neo4jPersistentEntity;
-import org.springframework.data.neo4j.core.mapping.CypherGenerator;
 import org.springframework.data.repository.reactive.ReactiveSortingRepository;
 import org.springframework.stereotype.Repository;
 import org.springframework.transaction.annotation.Transactional;
@@ -55,15 +54,12 @@ public class SimpleReactiveNeo4jRepository<T, ID> implements ReactiveSortingRepo
 
 	private final Neo4jPersistentEntity<T> entityMetaData;
 
-	private final CypherGenerator cypherGenerator;
-
 	protected SimpleReactiveNeo4jRepository(ReactiveNeo4jOperations neo4jOperations,
 			Neo4jEntityInformation<T, ID> entityInformation) {
 
 		this.neo4jOperations = neo4jOperations;
 		this.entityInformation = entityInformation;
 		this.entityMetaData = this.entityInformation.getEntityMetaData();
-		this.cypherGenerator = CypherGenerator.INSTANCE;
 	}
 
 	@Override