Example usage for javax.persistence.criteria Root get

Introduction

In this page you can find the example usage for javax.persistence.criteria Root get.

Prototype

<Y> Path<Y> get(SingularAttribute<? super X, Y> attribute);

Source Link

Document

Create a path corresponding to the referenced single-valued attribute.

Usage

From source file:org.echoice.modules.persistence.DynamicSpecifications.java

public static <T> Specification<T> bySearchFilter(final Collection<SearchFilter> filters,
        final Class<T> entityClazz) {
    return new Specification<T>() {
        @Override/* ww w.  jav a2s. c  om*/
        public Predicate toPredicate(Root<T> root, CriteriaQuery<?> query, CriteriaBuilder builder) {
            if (filters != null && filters.size() > 0) {

                List<Predicate> predicates = Lists.newArrayList();
                for (SearchFilter filter : filters) {
                    // nested path translate, Task??"user.name"filedName, ?Task.user.name
                    String[] names = StringUtils.split(filter.fieldName, ".");
                    Path expression = root.get(names[0]);
                    for (int i = 1; i < names.length; i++) {
                        expression = expression.get(names[i]);
                    }

                    // logic operator
                    switch (filter.operator) {
                    case EQ:
                        predicates.add(builder.equal(expression, filter.value));
                        break;
                    case LIKE:
                        predicates.add(builder.like(expression, "%" + filter.value + "%"));
                        break;
                    case GT:
                        predicates.add(builder.greaterThan(expression, (Comparable) filter.value));
                        break;
                    case LT:
                        predicates.add(builder.lessThan(expression, (Comparable) filter.value));
                        break;
                    case GTE:
                        predicates.add(builder.greaterThanOrEqualTo(expression, (Comparable) filter.value));
                        break;
                    case LTE:
                        predicates.add(builder.lessThanOrEqualTo(expression, (Comparable) filter.value));
                        break;
                    }
                }

                // ? and ???
                if (!predicates.isEmpty()) {
                    return builder.and(predicates.toArray(new Predicate[predicates.size()]));
                }
            }

            return builder.conjunction();
        }
    };
}

---

From source file:cc.sion.core.persistence.DynamicSpecifications.java

public static <T> Specification<T> bySearchFilter(final Collection<SearchFilter> filters,
        final Class<T> entityClazz) {
    return new Specification<T>() {
        @Override//from  w w w . ja  va2  s.  c om
        public Predicate toPredicate(Root<T> root, CriteriaQuery<?> query, CriteriaBuilder builder) {
            if (Collections3.isNotEmpty(filters)) {

                List<Predicate> predicates = Lists.newArrayList();
                for (SearchFilter filter : filters) {
                    // nested path translate, Task??"user.name"filedName, ?Task.user.name
                    String[] names = StringUtils.split(filter.fieldName, ".");
                    Path expression = root.get(names[0]);
                    for (int i = 1; i < names.length; i++) {
                        expression = expression.get(names[i]);
                    }
                    //                  if(log.isDebugEnabled()){
                    //                     log.debug("   {}-{}-{}",names[0],filter.operator,filter.value);
                    //                  }
                    // logic operator
                    switch (filter.operator) {
                    case EQ:
                        predicates.add(builder.equal(expression, filter.value));
                        break;
                    case NE:
                        predicates.add(builder.notEqual(expression, filter.value));
                        break;
                    case LIKE:
                        predicates.add(builder.like(expression, "%" + filter.value + "%"));
                        break;
                    case GT:
                        predicates.add(builder.greaterThan(expression, (Comparable) filter.value));
                        break;
                    case LT:
                        predicates.add(builder.lessThan(expression, (Comparable) filter.value));
                        break;
                    case GTE:
                        predicates.add(builder.greaterThanOrEqualTo(expression, (Comparable) filter.value));
                        break;
                    case LTE:
                        predicates.add(builder.lessThanOrEqualTo(expression, (Comparable) filter.value));
                        break;
                    }
                }

                // ? and ???
                if (!predicates.isEmpty()) {
                    return builder.and(predicates.toArray(new Predicate[predicates.size()]));
                }
            }

            return builder.conjunction();
        }
    };
}

---

From source file:com.i5le.framwork.core.persistence.DynamicSpecifications.java

public static <T> Specification<T> bySearchFilter(final Collection<SearchFilter> filters,
        final Class<T> entityClazz) {
    return new Specification<T>() {
        @Override/* w w w .jav  a2  s .  com*/
        public Predicate toPredicate(Root<T> root, CriteriaQuery<?> query, CriteriaBuilder builder) {
            if (Collections3.isNotEmpty(filters)) {

                List<Predicate> predicates = Lists.newArrayList();
                for (SearchFilter filter : filters) {
                    // nested path translate, Task??"user.name"filedName, ?Task.user.name
                    String[] names = StringUtils.split(filter.fieldName, ".");
                    Path expression = root.get(names[0]);
                    for (int i = 1; i < names.length; i++) {
                        expression = expression.get(names[i]);
                    }

                    // logic operator
                    switch (filter.operator) {
                    case EQ:
                        predicates.add(builder.equal(expression, filter.value));
                        break;
                    case LIKE:
                        predicates.add(builder.like(expression, "%" + filter.value + "%"));
                        break;
                    case GT:
                        predicates.add(builder.greaterThan(expression, (Comparable) filter.value));
                        break;
                    case LT:
                        predicates.add(builder.lessThan(expression, (Comparable) filter.value));
                        break;
                    case GTE:
                        predicates.add(builder.greaterThanOrEqualTo(expression, (Comparable) filter.value));
                        break;
                    case LTE:
                        predicates.add(builder.lessThanOrEqualTo(expression, (Comparable) filter.value));
                        break;

                    case NEQ:
                        predicates.add(builder.notEqual(expression, filter.value));
                        break;

                    }
                }

                // ? and ???
                if (!predicates.isEmpty()) {
                    return builder.and(predicates.toArray(new Predicate[predicates.size()]));
                }
            }

            return builder.conjunction();
        }
    };
}

---

From source file:com.netflix.genie.server.repository.jpa.ClusterSpecs.java

/**
 * Get all the clusters given the specified parameters.
 *
 * @param clusterCriteria The cluster criteria
 * @param commandCriteria The command Criteria
 * @return The specification/*from   w w  w.j a v a2s  .c  o m*/
 */
public static Specification<Cluster> findByClusterAndCommandCriteria(final ClusterCriteria clusterCriteria,
        final Set<String> commandCriteria) {
    return new Specification<Cluster>() {
        @Override
        public Predicate toPredicate(final Root<Cluster> root, final CriteriaQuery<?> cq,
                final CriteriaBuilder cb) {
            final List<Predicate> predicates = new ArrayList<>();
            final Join<Cluster, Command> commands = root.join(Cluster_.commands);

            cq.distinct(true);

            predicates.add(cb.equal(commands.get(Command_.status), CommandStatus.ACTIVE));
            predicates.add(cb.equal(root.get(Cluster_.status), ClusterStatus.UP));

            if (commandCriteria != null) {
                for (final String tag : commandCriteria) {
                    predicates.add(cb.isMember(tag, commands.get(Command_.tags)));

                }
            }

            if (clusterCriteria != null) {
                for (final String tag : clusterCriteria.getTags()) {
                    predicates.add(cb.isMember(tag, root.get(Cluster_.tags)));
                }
            }

            return cb.and(predicates.toArray(new Predicate[predicates.size()]));
        }
    };
}

---

From source file:com.shz.foundation.service.dynamic.DynamicSpecifications.java

public static <T> Specification<T> bySearchFilter(final Collection<SearchFilter> filters,
        final Class<T> entityClazz) {
    return new Specification<T>() {
        @Override/*from   w w w .  jav a  2  s .  com*/
        public Predicate toPredicate(Root<T> root, CriteriaQuery<?> query, CriteriaBuilder builder) {
            if (Collections3.isNotEmpty(filters)) {

                List<Predicate> predicates = Lists.newArrayList();
                for (SearchFilter filter : filters) {
                    // nested path translate, Task??"user.name"filedName, ?Task.user.name
                    String[] names = StringUtils.split(filter.fieldName, ".");
                    Path expression = root.get(names[0]);
                    for (int i = 1; i < names.length; i++) {
                        expression = expression.get(names[i]);
                    }

                    // logic operator
                    switch (filter.operator) {
                    case EQ:
                        //??
                        Object value = filter.value;
                        if (isBoolean(value)) {
                            value = Boolean.parseBoolean(value.toString());
                        }
                        predicates.add(builder.equal(expression, value));
                        break;
                    case LIKE:
                        predicates.add(builder.like(expression, "%" + filter.value + "%"));
                        break;
                    case GT:
                        predicates.add(builder.greaterThan(expression, (Comparable) filter.value));
                        break;
                    case LT:
                        predicates.add(builder.lessThan(expression, (Comparable) filter.value));
                        break;
                    case GTE:
                        predicates.add(builder.greaterThanOrEqualTo(expression, (Comparable) filter.value));
                        break;
                    case LTE:
                        predicates.add(builder.lessThanOrEqualTo(expression, (Comparable) filter.value));
                        break;
                    }
                }

                // ? and ???
                if (!predicates.isEmpty()) {
                    return builder.and(predicates.toArray(new Predicate[predicates.size()]));
                }
            }

            return builder.conjunction();
        }

        private boolean isBoolean(Object value) {
            String valueString = value.toString().toLowerCase();
            if (valueString.equals("true") || valueString.equals("false"))
                return true;
            return false;
        }
    };
}

---

From source file:com.ocs.dynamo.dao.query.JpaQueryBuilder.java

/**
 * Creates a query for retrieving the IDs of the entities that match the provided filter
 * /*  www  .  j av  a 2s.  co  m*/
 * @param entityManager
 *            the entity manager
 * @param entityClass
 *            the entity class
 * @param filter
 *            the filter to apply
 * @param sortOrder
 *            the sorting to apply
 * @return
 */
public static <T> CriteriaQuery<Tuple> createIdQuery(EntityManager entityManager, Class<T> entityClass,
        Filter filter, SortOrder... sortOrders) {
    CriteriaBuilder builder = entityManager.getCriteriaBuilder();
    CriteriaQuery<Tuple> cq = builder.createTupleQuery();
    Root<T> root = cq.from(entityClass);

    // select only the ID
    cq.multiselect(root.get(DynamoConstants.ID));

    // Set where clause
    Predicate p = createPredicate(filter, builder, root);
    if (p != null) {
        cq.where(p);
    }

    // add order clause - this is also important in case of an ID query
    // since we do need to return the correct IDs!
    return addSortInformation(builder, cq, root, sortOrders);
}

---

From source file:com.netflix.genie.server.repository.jpa.JobSpecs.java

/**
 * Find jobs that are zombies./*  w ww  .  ja  v  a2s  .c  o m*/
 *
 * @param currentTime The current time
 * @param zombieTime  The time that zombies should be marked by
 * @return The specification for this query
 */
public static Specification<Job> findZombies(final long currentTime, final long zombieTime) {
    return new Specification<Job>() {
        @Override
        public Predicate toPredicate(final Root<Job> root, final CriteriaQuery<?> cq,
                final CriteriaBuilder cb) {
            // the equivalent query is as follows:
            // update Job set status='FAILED', finishTime=$max, exitCode=$zombie_code,
            // statusMsg='Job has been marked as a zombie'
            // where updateTime < $min and (status='RUNNING' or status='INIT')"
            final List<Predicate> predicates = new ArrayList<>();
            predicates.add(cb.lessThan(root.get(Job_.updated), new Date(currentTime - zombieTime)));
            final Predicate orPredicate1 = cb.equal(root.get(Job_.status), JobStatus.RUNNING);
            final Predicate orPredicate2 = cb.equal(root.get(Job_.status), JobStatus.INIT);
            predicates.add(cb.or(orPredicate1, orPredicate2));
            return cb.and(predicates.toArray(new Predicate[predicates.size()]));
        }
    };
}

---

From source file:com.netflix.genie.web.data.repositories.jpa.specifications.JpaCommandSpecs.java

/**
 * Get all the clusters given the specified parameters.
 *
 * @param applicationId The id of the application that is registered with these commands
 * @param statuses      The status of the commands
 * @return The specification//from  w  w  w  .  ja v a 2  s  .  c o  m
 */
public static Specification<CommandEntity> findCommandsForApplication(final String applicationId,
        @Nullable final Set<CommandStatus> statuses) {
    return (final Root<CommandEntity> root, final CriteriaQuery<?> cq, final CriteriaBuilder cb) -> {
        final List<Predicate> predicates = new ArrayList<>();
        final Join<CommandEntity, ApplicationEntity> application = root.join(CommandEntity_.applications);

        predicates.add(cb.equal(application.get(ApplicationEntity_.uniqueId), applicationId));

        if (statuses != null && !statuses.isEmpty()) {
            predicates.add(
                    cb.or(statuses.stream().map(status -> cb.equal(root.get(CommandEntity_.status), status))
                            .toArray(Predicate[]::new)));
        }

        return cb.and(predicates.toArray(new Predicate[predicates.size()]));
    };
}

---

From source file:com.frame.base.repository.jpa.DynamicSpecifications.java

public static <T> Specification<T> bySearchFilter(final Collection<SearchFilter> filters,
        final Class<T> entityClazz) {
    return new Specification<T>() {
        @SuppressWarnings({ "rawtypes", "unchecked" })
        @Override/*from   w w  w  .  jav  a 2s. c  o  m*/
        public Predicate toPredicate(Root<T> root, CriteriaQuery<?> query, CriteriaBuilder builder) {
            if (filters != null && !filters.isEmpty()) {
                List<Predicate> predicates = Lists.newArrayList();
                for (SearchFilter filter : filters) {
                    // nested path translate, Task??"user.name"filedName,
                    // ?Task.user.name
                    String[] names = StringUtils.split(filter.fieldName, ".");
                    Path expression = root.get(names[0]);
                    for (int i = 1; i < names.length; i++) {
                        expression = expression.get(names[i]);
                    }

                    // logic operator
                    switch (filter.operator) {
                    case EQ:
                        predicates.add(builder.equal(expression, filter.value));
                        break;
                    case LIKE:
                        predicates.add(builder.like(expression, "%" + filter.value + "%"));
                        break;
                    case GT:
                        predicates.add(builder.greaterThan(expression, (Comparable) filter.value));
                        break;
                    case LT:
                        predicates.add(builder.lessThan(expression, (Comparable) filter.value));
                        break;
                    case GTE:
                        predicates.add(builder.greaterThanOrEqualTo(expression, (Comparable) filter.value));
                        break;
                    case LTE:
                        predicates.add(builder.lessThanOrEqualTo(expression, (Comparable) filter.value));
                        break;
                    case NE:
                        predicates.add(builder.notEqual(expression, (Comparable) filter.value));
                    case IN:
                        predicates.add(
                                builder.in(expression).in(Arrays.asList(filter.value.toString().split(","))));
                    }
                }

                // ? and ???
                if (!predicates.isEmpty()) {
                    return builder.and(predicates.toArray(new Predicate[predicates.size()]));
                }
            }

            return builder.conjunction();
        }
    };
}

---

From source file:com.faceye.feature.repository.jpa.DynamicSpecifications.java

public static <T> Specification<T> bySearchFilter(final Collection<SearchFilter> filters,
        final Class<T> entityClazz) {
    return new Specification<T>() {
        @Override/*w  w w .j  a  va  2  s  .co  m*/
        public Predicate toPredicate(Root<T> root, CriteriaQuery<?> query, CriteriaBuilder builder) {
            if (CollectionUtils.isNotEmpty(filters)) {

                List<Predicate> predicates = Lists.newArrayList();
                for (SearchFilter filter : filters) {
                    // nested path translate, Task??"user.name"filedName, ?Task.user.name
                    String[] names = StringUtils.split(filter.fieldName, ".");
                    Path expression = root.get(names[0]);
                    for (int i = 1; i < names.length; i++) {
                        expression = expression.get(names[i]);
                    }

                    // logic operator
                    switch (filter.operator) {
                    case EQ:
                        if (filter.value instanceof Number) {
                            predicates.add(builder.equal(expression, (Number) filter.value));
                        } else if (filter.value instanceof String) {
                            if (StringUtils.isNotEmpty(filter.value.toString())) {
                                predicates.add(builder.equal(expression, filter.value));
                            }
                        } else {
                            predicates.add(builder.equal(expression, filter.value));
                        }
                        break;
                    case LIKE:
                        predicates.add(builder.like(expression, "%" + filter.value + "%"));
                        break;
                    case GT:
                        predicates.add(builder.greaterThan(expression, (Comparable) filter.value));
                        break;
                    case LT:
                        predicates.add(builder.lessThan(expression, (Comparable) filter.value));
                        break;
                    case GTE:
                        predicates.add(builder.greaterThanOrEqualTo(expression, (Comparable) filter.value));
                        break;
                    case LTE:
                        predicates.add(builder.lessThanOrEqualTo(expression, (Comparable) filter.value));
                        break;
                    case ISTRUE:
                        predicates.add(builder.isTrue(expression));
                        break;
                    case ISFALSE:
                        predicates.add(builder.isFalse(expression));
                        break;
                    case ISEMPTY:
                        predicates.add(builder.isEmpty(expression));
                        break;
                    case ISNULL:
                        predicates.add(builder.isNull(expression));
                        break;
                    case NE:
                        predicates.add(builder.notEqual(expression, filter.value));
                    }
                }

                // ? and ???
                if (!predicates.isEmpty()) {
                    return builder.and(predicates.toArray(new Predicate[predicates.size()]));
                }
            }

            return builder.conjunction();
        }
    };
}

---

• «
• 1
• 2
• 3
• 4
• 5
• 6
• 7
• 8
• 9
• 10
• 11
• 12
• 13
• 14
• 15
• 16
• 17
• 18
• 19
• 20
• 21
• 22
• 23
• 24
• 25
• 26
• 27
• 28
• 29
• 30
• 31
• 32
• 33
• 34
• 35
• 36
• 37
• 38
• 39
• 40
• 41
• 42
• 43
• 44
• 45
• 46
• 47
• 48
• 49
• 50
• »