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generalization of the user specific spec

This commit is contained in:
eugenp 2016-10-29 09:26:08 +03:00
parent 539e5fed63
commit d5983b0d8c
2 changed files with 5 additions and 6 deletions
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9
spring-security-rest-full/src/main/java/org/baeldung/persistence/dao/rsql/UserRsqlSpecification.java → spring-security-rest-full/src/main/java/org/baeldung/persistence/dao/rsql/GenericRsqlSpecification.java
View File

@ -8,18 +8,17 @@ import javax.persistence.criteria.CriteriaQuery;
import javax.persistence.criteria.Predicate; import javax.persistence.criteria.Predicate;
import javax.persistence.criteria.Root; import javax.persistence.criteria.Root;
import org.baeldung.persistence.model.User;
import org.springframework.data.jpa.domain.Specification; import org.springframework.data.jpa.domain.Specification;
import cz.jirutka.rsql.parser.ast.ComparisonOperator; import cz.jirutka.rsql.parser.ast.ComparisonOperator;
public class UserRsqlSpecification implements Specification<User> { public class GenericRsqlSpecification<T> implements Specification<T> {
private String property; private String property;
private ComparisonOperator operator; private ComparisonOperator operator;
private List<String> arguments; private List<String> arguments;
public UserRsqlSpecification(final String property, final ComparisonOperator operator, final List<String> arguments) { public GenericRsqlSpecification(final String property, final ComparisonOperator operator, final List<String> arguments) {
super(); super();
this.property = property; this.property = property;
this.operator = operator; this.operator = operator;
@ -27,7 +26,7 @@ public class UserRsqlSpecification implements Specification<User> {
} }
@Override @Override
public Predicate toPredicate(final Root<User> root, final CriteriaQuery<?> query, final CriteriaBuilder builder) { public Predicate toPredicate(final Root<T> root, final CriteriaQuery<?> query, final CriteriaBuilder builder) {
final List<Object> args = castArguments(root); final List<Object> args = castArguments(root);
final Object argument = args.get(0); final Object argument = args.get(0);
switch (RsqlSearchOperation.getSimpleOperator(operator)) { switch (RsqlSearchOperation.getSimpleOperator(operator)) {
@ -73,7 +72,7 @@ public class UserRsqlSpecification implements Specification<User> {
// === private // === private
private List<Object> castArguments(final Root<User> root) { private List<Object> castArguments(final Root<T> root) {
final List<Object> args = new ArrayList<Object>(); final List<Object> args = new ArrayList<Object>();
final Class<? extends Object> type = root.get(property).getJavaType(); final Class<? extends Object> type = root.get(property).getJavaType();

2
spring-security-rest-full/src/main/java/org/baeldung/persistence/dao/rsql/UserRsqlSpecBuilder.java
View File

@ -51,7 +51,7 @@ public class UserRsqlSpecBuilder {
} }
public Specifications<User> createSpecification(final ComparisonNode comparisonNode) { public Specifications<User> createSpecification(final ComparisonNode comparisonNode) {
final Specifications<User> result = Specifications.where(new UserRsqlSpecification(comparisonNode.getSelector(), comparisonNode.getOperator(), comparisonNode.getArguments())); final Specifications<User> result = Specifications.where(new GenericRsqlSpecification<User>(comparisonNode.getSelector(), comparisonNode.getOperator(), comparisonNode.getArguments()));
return result; return result;
} }