spring-data-elasticsearch Criteria 源码
spring-data-elasticsearch Criteria 代码
文件路径：/src/main/java/org/springframework/data/elasticsearch/core/query/Criteria.java
/*
* Copyright 2013-2022 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.
* You may obtain a copy of the License at
*
* https://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.springframework.data.elasticsearch.core.query;
import java.util.Arrays;
import java.util.Collections;
import java.util.LinkedHashSet;
import java.util.LinkedList;
import java.util.List;
import java.util.Objects;
import java.util.Set;
import org.springframework.dao.InvalidDataAccessApiUsageException;
import org.springframework.data.elasticsearch.core.geo.GeoBox;
import org.springframework.data.elasticsearch.core.geo.GeoJson;
import org.springframework.data.elasticsearch.core.geo.GeoPoint;
import org.springframework.data.geo.Box;
import org.springframework.data.geo.Distance;
import org.springframework.data.geo.Point;
import org.springframework.lang.Nullable;
import org.springframework.util.Assert;
import org.springframework.util.StringUtils;
/**
* Criteria is the central class when constructing queries. It follows more or less a fluent API style, which allows to
* easily chain together multiple criteria. <br/>
* <br/>
* A Criteria references a field and has {@link CriteriaEntry} sets for query and filter context. When building the
* query, the entries from the criteria entries are combined in a bool must query (if more than one.<br/>
* <br/>
* A Criteria also has a {@link CriteriaChain} which is used to build a collection of Criteria with the fluent API. The
* value of {@link #isAnd()} and {@link #isOr()} describes whether the queries built from the criteria chain should be
* put in a must (and) or a should (or) clause when a query is built from it, it is not used to build some relationship
* between the elements of the criteria chain.
*
* @author Rizwan Idrees
* @author Mohsin Husen
* @author Franck Marchand
* @author Peter-Josef Meisch
*/
public class Criteria {
public static final String CRITERIA_VALUE_SEPARATOR = " ";
private @Nullable Field field;
private float boost = Float.NaN;
private boolean negating = false;
private final CriteriaChain criteriaChain = new CriteriaChain();
private final Set<CriteriaEntry> queryCriteriaEntries = new LinkedHashSet<>();
private final Set<CriteriaEntry> filterCriteriaEntries = new LinkedHashSet<>();
private final Set<Criteria> subCriteria = new LinkedHashSet<>();
// region criteria creation
/**
* @return factory method to create an and-Criteria that is not bound to a field
* @since 4.1
*/
public static Criteria and() {
return new Criteria();
}
/**
* @return factory method to create an or-Criteria that is not bound to a field
* @since 4.1
*/
public static Criteria or() {
return new OrCriteria();
}
public Criteria() {}
/**
* Creates a new Criteria with provided field name
*
* @param fieldName the field name
*/
public Criteria(String fieldName) {
this(new SimpleField(fieldName));
}
/**
* Creates a new Criteria for the given field
*
* @param field field to create the Criteria for
*/
public Criteria(Field field) {
Assert.notNull(field, "Field for criteria must not be null");
Assert.hasText(field.getName(), "Field.name for criteria must not be null/empty");
this.field = field;
this.criteriaChain.add(this);
}
/**
* Creates a Criteria for the given field, sets it's criteriaChain to the given value and adds itself to the end of
* the chain.
*
* @param criteriaChain the chain to add to
* @param fieldName field to create the Criteria for
*/
protected Criteria(List<Criteria> criteriaChain, String fieldName) {
this(criteriaChain, new SimpleField(fieldName));
}
/**
* Creates a Criteria for the given field, sets it's criteriaChain to the given value and adds itself to the end of
* the chain.
*
* @param criteriaChain the chain to add to
* @param field field to create the Criteria for
*/
protected Criteria(List<Criteria> criteriaChain, Field field) {
Assert.notNull(criteriaChain, "CriteriaChain must not be null");
Assert.notNull(field, "Field for criteria must not be null");
Assert.hasText(field.getName(), "Field.name for criteria must not be null/empty");
this.field = field;
this.criteriaChain.addAll(criteriaChain);
this.criteriaChain.add(this);
}
/**
* Static factory method to create a new Criteria for field with given name
*
* @param fieldName field to create the Criteria for
*/
public static Criteria where(String fieldName) {
return new Criteria(fieldName);
}
/**
* Static factory method to create a new Criteria for provided field
*
* @param field field to create the Criteria for
*/
public static Criteria where(Field field) {
return new Criteria(field);
}
// endregion
// region criteria attributes
/**
* @return the Field targeted by this Criteria
*/
@Nullable
public Field getField() {
return this.field;
}
public Set<CriteriaEntry> getQueryCriteriaEntries() {
return Collections.unmodifiableSet(this.queryCriteriaEntries);
}
public Set<CriteriaEntry> getFilterCriteriaEntries() {
return Collections.unmodifiableSet(this.filterCriteriaEntries);
}
public Operator getOperator() {
return Operator.AND;
}
public List<Criteria> getCriteriaChain() {
return Collections.unmodifiableList(this.criteriaChain);
}
/**
* Sets the negating flag
*
* @return this object
*/
public Criteria not() {
this.negating = true;
return this;
}
public boolean isNegating() {
return this.negating;
}
/**
* Sets the boost factor.
*
* @param boost boost factor
* @return this object
*/
public Criteria boost(float boost) {
Assert.isTrue(boost >= 0, "boost must not be negative");
this.boost = boost;
return this;
}
public float getBoost() {
return this.boost;
}
public boolean isAnd() {
return getOperator() == Operator.AND;
}
public boolean isOr() {
return getOperator() == Operator.OR;
}
/**
* @return the set ob subCriteria
* @since 4.1
*/
public Set<Criteria> getSubCriteria() {
return subCriteria;
}
// endregion
// region criteria chaining
/**
* Chain a new and-Criteria
*
* @param field the field for the new Criteria
* @return the new chained Criteria
*/
public Criteria and(Field field) {
return new Criteria(criteriaChain, field);
}
/**
* Chain a new and- Criteria
*
* @param fieldName the field for the new Criteria
* @return the new chained Criteria
*/
public Criteria and(String fieldName) {
return new Criteria(criteriaChain, fieldName);
}
/**
* Chain a Criteria to this object.
*
* @param criteria the Criteria to add
* @return this object
*/
public Criteria and(Criteria criteria) {
Assert.notNull(criteria, "Cannot chain 'null' criteria.");
this.criteriaChain.add(criteria);
return this;
}
/**
* Chain an array of Criteria to this object.
*
* @param criterias the Criteria to add
* @return this object
*/
public Criteria and(Criteria... criterias) {
Assert.notNull(criterias, "Cannot chain 'null' criterias.");
this.criteriaChain.addAll(Arrays.asList(criterias));
return this;
}
/**
* Chain a new or-Criteria
*
* @param field the field for the new Criteria
* @return the new chained Criteria
*/
public Criteria or(Field field) {
return new OrCriteria(this.criteriaChain, field);
}
/**
* Chain a new or-Criteria
*
* @param fieldName the field for the new Criteria
* @return the new chained Criteria
*/
public Criteria or(String fieldName) {
return or(new SimpleField(fieldName));
}
/**
* Chain a new or-Criteria. The new Criteria uses the {@link #getField()}, {@link #getQueryCriteriaEntries()} and
* {@link #getFilterCriteriaEntries()} of the passed in parameter. the new created criteria is added to the criteria
* chain.
*
* @param criteria contains the information for the new Criteria
* @return the new chained criteria
*/
public Criteria or(Criteria criteria) {
Assert.notNull(criteria, "Cannot chain 'null' criteria.");
Assert.notNull(criteria.getField(), "Cannot chain Criteria with no field");
Criteria orCriteria = new OrCriteria(this.criteriaChain, criteria.getField());
orCriteria.queryCriteriaEntries.addAll(criteria.queryCriteriaEntries);
orCriteria.filterCriteriaEntries.addAll(criteria.filterCriteriaEntries);
return orCriteria;
}
/**
* adds a Criteria as subCriteria
*
* @param criteria the criteria to add, must not be {@literal null}
* @return this object
* @since 4.1
*/
public Criteria subCriteria(Criteria criteria) {
Assert.notNull(criteria, "criteria must not be null");
subCriteria.add(criteria);
return this;
}
// endregion
// region criteria entries - query
/**
* Add a {@link OperationKey#EQUALS} entry to the {@link #queryCriteriaEntries}
*
* @param o the argument to the operation
* @return this object
*/
public Criteria is(Object o) {
queryCriteriaEntries.add(new CriteriaEntry(OperationKey.EQUALS, o));
return this;
}
/**
* Add a {@link OperationKey#EXISTS} entry to the {@link #queryCriteriaEntries}
*
* @return this object
* @since 4.0
*/
public Criteria exists() {
queryCriteriaEntries.add(new CriteriaEntry(OperationKey.EXISTS));
return this;
}
/**
* Adds a OperationKey.BETWEEN entry to the {@link #queryCriteriaEntries}. Only one of the parameters may be null to
* define an unbounded end of the range.
*
* @param lowerBound the lower bound of the range, null for unbounded
* @param upperBound the upper bound of the range, null for unbounded
* @return this object
*/
public Criteria between(@Nullable Object lowerBound, @Nullable Object upperBound) {
if (lowerBound == null && upperBound == null) {
throw new InvalidDataAccessApiUsageException("Range [* TO *] is not allowed");
}
queryCriteriaEntries.add(new CriteriaEntry(OperationKey.BETWEEN, new Object[] { lowerBound, upperBound }));
return this;
}
/**
* Add a {@link OperationKey#STARTS_WITH} entry to the {@link #queryCriteriaEntries}
*
* @param s the argument to the operation
* @return this object
*/
public Criteria startsWith(String s) {
Assert.notNull(s, "s may not be null");
assertNoBlankInWildcardQuery(s, true, false);
queryCriteriaEntries.add(new CriteriaEntry(OperationKey.STARTS_WITH, s));
return this;
}
/**
* Add a {@link OperationKey#CONTAINS} entry to the {@link #queryCriteriaEntries} <br/>
* <strong>NOTE: </strong> mind your schema as leading wildcards may not be supported and/or execution might be slow.
*
* @param s the argument to the operation
* @return this object
*/
public Criteria contains(String s) {
Assert.notNull(s, "s may not be null");
assertNoBlankInWildcardQuery(s, true, true);
queryCriteriaEntries.add(new CriteriaEntry(OperationKey.CONTAINS, s));
return this;
}
/**
* Add a {@link OperationKey#ENDS_WITH} entry to the {@link #queryCriteriaEntries} <br/>
* <strong>NOTE: </strong> mind your schema as leading wildcards may not be supported and/or execution might be slow.
*
* @param s the argument to the operation
* @return this object
*/
public Criteria endsWith(String s) {
Assert.notNull(s, "s may not be null");
assertNoBlankInWildcardQuery(s, false, true);
queryCriteriaEntries.add(new CriteriaEntry(OperationKey.ENDS_WITH, s));
return this;
}
/**
* Add a {@link OperationKey#IN} entry to the {@link #queryCriteriaEntries}. This will create a terms query, so don't
* use it with text fields as these are analyzed and changed by Elasticsearch (converted to lowercase with the default
* analyzer). If used for Strings, these should be marked as field type Keyword.
*
* @param values the argument to the operation
* @return this object
*/
public Criteria in(Object... values) {
return in(toCollection(values));
}
/**
* Add a {@link OperationKey#IN} entry to the {@link #queryCriteriaEntries}. See the comment at
* {@link Criteria#in(Object...)}.
*
* @param values the argument to the operation
* @return this object
*/
public Criteria in(Iterable<?> values) {
Assert.notNull(values, "Collection of 'in' values must not be null");
queryCriteriaEntries.add(new CriteriaEntry(OperationKey.IN, values));
return this;
}
/**
* Add a {@link OperationKey#NOT_IN} entry to the {@link #queryCriteriaEntries}. See the comment at
* {@link Criteria#in(Object...)}.
*
* @param values the argument to the operation
* @return this object
*/
public Criteria notIn(Object... values) {
return notIn(toCollection(values));
}
/**
* Add a {@link OperationKey#NOT_IN} entry to the {@link #queryCriteriaEntries}. See the comment at
* {@link Criteria#in(Object...)}.
*
* @param values the argument to the operation
* @return this object
*/
public Criteria notIn(Iterable<?> values) {
Assert.notNull(values, "Collection of 'NotIn' values must not be null");
queryCriteriaEntries.add(new CriteriaEntry(OperationKey.NOT_IN, values));
return this;
}
/**
* Add a {@link OperationKey#EXPRESSION} entry to the {@link #queryCriteriaEntries} allowing native elasticsearch
* expressions
*
* @param s the argument to the operation
* @return this object
*/
public Criteria expression(String s) {
queryCriteriaEntries.add(new CriteriaEntry(OperationKey.EXPRESSION, s));
return this;
}
/**
* Add a {@link OperationKey#FUZZY} entry to the {@link #queryCriteriaEntries}
*
* @param s the argument to the operation
* @return this object
*/
public Criteria fuzzy(String s) {
queryCriteriaEntries.add(new CriteriaEntry(OperationKey.FUZZY, s));
return this;
}
/**
* Add a {@link OperationKey#LESS_EQUAL} entry to the {@link #queryCriteriaEntries}
*
* @param upperBound the argument to the operation
* @return this object
*/
public Criteria lessThanEqual(Object upperBound) {
Assert.notNull(upperBound, "upperBound must not be null");
queryCriteriaEntries.add(new CriteriaEntry(OperationKey.LESS_EQUAL, upperBound));
return this;
}
/**
* Add a {@link OperationKey#LESS} entry to the {@link #queryCriteriaEntries}
*
* @param upperBound the argument to the operation
* @return this object
*/
public Criteria lessThan(Object upperBound) {
Assert.notNull(upperBound, "upperBound must not be null");
queryCriteriaEntries.add(new CriteriaEntry(OperationKey.LESS, upperBound));
return this;
}
/**
* Add a {@link OperationKey#GREATER_EQUAL} entry to the {@link #queryCriteriaEntries}
*
* @param lowerBound the argument to the operation
* @return this object
*/
public Criteria greaterThanEqual(Object lowerBound) {
Assert.notNull(lowerBound, "lowerBound must not be null");
queryCriteriaEntries.add(new CriteriaEntry(OperationKey.GREATER_EQUAL, lowerBound));
return this;
}
/**
* Add a {@link OperationKey#GREATER} entry to the {@link #queryCriteriaEntries}
*
* @param lowerBound the argument to the operation
* @return this object
*/
public Criteria greaterThan(Object lowerBound) {
Assert.notNull(lowerBound, "lowerBound must not be null");
queryCriteriaEntries.add(new CriteriaEntry(OperationKey.GREATER, lowerBound));
return this;
}
/**
* Add a {@link OperationKey#MATCHES} entry to the {@link #queryCriteriaEntries}. This will build a match query with
* the OR operator.
*
* @param value the value to match
* @return this object
* @since 4.1
*/
public Criteria matches(Object value) {
Assert.notNull(value, "value must not be null");
queryCriteriaEntries.add(new CriteriaEntry(OperationKey.MATCHES, value));
return this;
}
/**
* Add a {@link OperationKey#MATCHES} entry to the {@link #queryCriteriaEntries}. This will build a match query with
* the AND operator.
*
* @param value the value to match
* @return this object
* @since 4.1
*/
public Criteria matchesAll(Object value) {
Assert.notNull(value, "value must not be null");
queryCriteriaEntries.add(new CriteriaEntry(OperationKey.MATCHES_ALL, value));
return this;
}
/**
* Add a {@link OperationKey#EMPTY} entry to the {@link #queryCriteriaEntries}.
*
* @return this object
* @since 4.3
*/
public Criteria empty() {
queryCriteriaEntries.add(new CriteriaEntry(OperationKey.EMPTY));
return this;
}
/**
* Add a {@link OperationKey#NOT_EMPTY} entry to the {@link #queryCriteriaEntries}.
*
* @return this object
* @since 4.3
*/
public Criteria notEmpty() {
queryCriteriaEntries.add(new CriteriaEntry(OperationKey.NOT_EMPTY));
return this;
}
// endregion
// region criteria entries - filter
/**
* Adds a new filter CriteriaEntry for {@code location GeoBox bounding box}
*
* @param boundingBox {@link org.springframework.data.elasticsearch.core.geo.GeoBox} bounding box(left top corner +
* right bottom corner)
* @return this object
*/
public Criteria boundedBy(GeoBox boundingBox) {
Assert.notNull(boundingBox, "boundingBox value for boundedBy criteria must not be null");
filterCriteriaEntries.add(new CriteriaEntry(OperationKey.BBOX, new Object[] { boundingBox }));
return this;
}
/**
* Adds a new filter CriteriaEntry for {@code location Box bounding box}
*
* @param boundingBox {@link org.springframework.data.elasticsearch.core.geo.GeoBox} bounding box(left top corner +
* right bottom corner)
* @return this object
*/
public Criteria boundedBy(Box boundingBox) {
Assert.notNull(boundingBox, "boundingBox value for boundedBy criteria must not be null");
filterCriteriaEntries
.add(new CriteriaEntry(OperationKey.BBOX, new Object[] { boundingBox.getFirst(), boundingBox.getSecond() }));
return this;
}
/**
* Adds a new filter CriteriaEntry for bounding box created from points
*
* @param topLeftGeohash left top corner of bounding box as geohash
* @param bottomRightGeohash right bottom corner of bounding box as geohash
* @return this object
*/
public Criteria boundedBy(String topLeftGeohash, String bottomRightGeohash) {
Assert.isTrue(!StringUtils.isEmpty(topLeftGeohash), "topLeftGeohash must not be empty");
Assert.isTrue(!StringUtils.isEmpty(bottomRightGeohash), "bottomRightGeohash must not be empty");
filterCriteriaEntries
.add(new CriteriaEntry(OperationKey.BBOX, new Object[] { topLeftGeohash, bottomRightGeohash }));
return this;
}
/**
* Adds a new filter CriteriaEntry for bounding box created from points
*
* @param topLeftPoint left top corner of bounding box
* @param bottomRightPoint right bottom corner of bounding box
* @return this object
*/
public Criteria boundedBy(GeoPoint topLeftPoint, GeoPoint bottomRightPoint) {
Assert.notNull(topLeftPoint, "topLeftPoint must not be null");
Assert.notNull(bottomRightPoint, "bottomRightPoint must not be null");
filterCriteriaEntries.add(new CriteriaEntry(OperationKey.BBOX, new Object[] { topLeftPoint, bottomRightPoint }));
return this;
}
/**
* Adds a new filter CriteriaEntry for bounding box created from points
*
* @param topLeftPoint left top corner of bounding box
* @param bottomRightPoint right bottom corner of bounding box
* @return this object
*/
public Criteria boundedBy(Point topLeftPoint, Point bottomRightPoint) {
Assert.notNull(topLeftPoint, "topLeftPoint must not be null");
Assert.notNull(bottomRightPoint, "bottomRightPoint must not be null");
filterCriteriaEntries.add(new CriteriaEntry(OperationKey.BBOX,
new Object[] { GeoPoint.fromPoint(topLeftPoint), GeoPoint.fromPoint(bottomRightPoint) }));
return this;
}
/**
* Adds a new filter CriteriaEntry for {@code location WITHIN distance}
*
* @param location {@link org.springframework.data.elasticsearch.core.geo.GeoPoint} center coordinates
* @param distance {@link String} radius as a string (e.g. : '100km'). Distance unit : either mi/miles or km can be
* set
* @return this object
*/
public Criteria within(GeoPoint location, String distance) {
Assert.notNull(location, "Location value for near criteria must not be null");
Assert.notNull(location, "Distance value for near criteria must not be null");
filterCriteriaEntries.add(new CriteriaEntry(OperationKey.WITHIN, new Object[] { location, distance }));
return this;
}
/**
* Adds a new filter CriteriaEntry for {@code location WITHIN distance}
*
* @param location {@link org.springframework.data.geo.Point} center coordinates
* @param distance {@link org.springframework.data.geo.Distance} radius .
* @return this object
*/
public Criteria within(Point location, Distance distance) {
Assert.notNull(location, "Location value for near criteria must not be null");
Assert.notNull(location, "Distance value for near criteria must not be null");
filterCriteriaEntries.add(new CriteriaEntry(OperationKey.WITHIN, new Object[] { location, distance }));
return this;
}
/**
* Adds a new filter CriteriaEntry for {@code geoLocation WITHIN distance}
*
* @param geoLocation {@link String} center point supported formats: lat on = > "41.2,45.1", geohash = > "asd9as0d"
* @param distance {@link String} radius as a string (e.g. : '100km'). Distance unit : either mi/miles or km can be
* set
* @return this object
*/
public Criteria within(String geoLocation, String distance) {
Assert.isTrue(!StringUtils.isEmpty(geoLocation), "geoLocation value must not be null");
filterCriteriaEntries.add(new CriteriaEntry(OperationKey.WITHIN, new Object[] { geoLocation, distance }));
return this;
}
/**
* Adds a new filter CriteriaEntry for GEO_INTERSECTS.
*
* @param geoShape the GeoJson shape
* @return this object
*/
public Criteria intersects(GeoJson<?> geoShape) {
Assert.notNull(geoShape, "geoShape must not be null");
filterCriteriaEntries.add(new CriteriaEntry(OperationKey.GEO_INTERSECTS, geoShape));
return this;
}
/**
* Adds a new filter CriteriaEntry for GEO_IS_DISJOINT.
*
* @param geoShape the GeoJson shape
* @return this object
*/
public Criteria isDisjoint(GeoJson<?> geoShape) {
Assert.notNull(geoShape, "geoShape must not be null");
filterCriteriaEntries.add(new CriteriaEntry(OperationKey.GEO_IS_DISJOINT, geoShape));
return this;
}
/**
* Adds a new filter CriteriaEntry for GEO_WITHIN.
*
* @param geoShape the GeoJson shape
* @return this object
*/
public Criteria within(GeoJson<?> geoShape) {
Assert.notNull(geoShape, "geoShape must not be null");
filterCriteriaEntries.add(new CriteriaEntry(OperationKey.GEO_WITHIN, geoShape));
return this;
}
/**
* Adds a new filter CriteriaEntry for GEO_CONTAINS.
*
* @param geoShape the GeoJson shape
* @return this object
*/
public Criteria contains(GeoJson<?> geoShape) {
Assert.notNull(geoShape, "geoShape must not be null");
filterCriteriaEntries.add(new CriteriaEntry(OperationKey.GEO_CONTAINS, geoShape));
return this;
}
// endregion
// region helper functions
private void assertNoBlankInWildcardQuery(String searchString, boolean leadingWildcard, boolean trailingWildcard) {
if (searchString.contains(CRITERIA_VALUE_SEPARATOR)) {
throw new InvalidDataAccessApiUsageException("Cannot constructQuery '" + (leadingWildcard ? "*" : "") + '"'
+ searchString + '"' + (trailingWildcard ? "*" : "") + "'. Use expression or multiple clauses instead.");
}
}
private List<Object> toCollection(Object... values) {
return Arrays.asList(values);
}
// endregion
@Override
public boolean equals(Object o) {
if (this == o)
return true;
if (o == null || getClass() != o.getClass())
return false;
Criteria criteria = (Criteria) o;
if (Float.compare(criteria.boost, boost) != 0)
return false;
if (negating != criteria.negating)
return false;
if (!Objects.equals(field, criteria.field))
return false;
if (!queryCriteriaEntries.equals(criteria.queryCriteriaEntries))
return false;
if (!filterCriteriaEntries.equals(criteria.filterCriteriaEntries))
return false;
return subCriteria.equals(criteria.subCriteria);
}
@Override
public int hashCode() {
int result = field != null ? field.hashCode() : 0;
result = 31 * result + (boost != +0.0f ? Float.floatToIntBits(boost) : 0);
result = 31 * result + (negating ? 1 : 0);
result = 31 * result + queryCriteriaEntries.hashCode();
result = 31 * result + filterCriteriaEntries.hashCode();
result = 31 * result + subCriteria.hashCode();
return result;
}
@Override
public String toString() {
return "Criteria{" + //
"field=" + field + //
", boost=" + boost + //
", negating=" + negating + //
", queryCriteriaEntries=" + queryCriteriaEntries + //
", filterCriteriaEntries=" + filterCriteriaEntries + //
", subCriteria=" + subCriteria + //
'}'; //
}
@SuppressWarnings("unused")
static class OrCriteria extends Criteria {
public OrCriteria() {
super();
}
public OrCriteria(String fieldName) {
super(fieldName);
}
public OrCriteria(Field field) {
super(field);
}
public OrCriteria(List<Criteria> criteriaChain, String fieldName) {
super(criteriaChain, fieldName);
}
public OrCriteria(List<Criteria> criteriaChain, Field field) {
super(criteriaChain, field);
}
@Override
public Operator getOperator() {
return Operator.OR;
}
}
/**
* a list of {@link Criteria} objects that belong to one query.
*
* @since 4.1
*/
public static class CriteriaChain extends LinkedList<Criteria> {}
/**
* Operator to join the entries of the criteria chain
*/
public enum Operator {
AND, //
OR //
}
public enum OperationKey { //
EQUALS, //
CONTAINS, //
STARTS_WITH, //
ENDS_WITH, //
EXPRESSION, //
BETWEEN, //
FUZZY, //
/**
* @since 4.1
*/
MATCHES, //
/**
* @since 4.1
*/
MATCHES_ALL, //
IN, //
NOT_IN, //
WITHIN, //
BBOX, //
LESS, //
LESS_EQUAL, //
GREATER, //
GREATER_EQUAL, //
/**
* @since 4.0
*/
EXISTS, //
/**
* @since 4.1
*/
GEO_INTERSECTS, //
/**
* @since 4.1
*/
GEO_IS_DISJOINT, //
/**
* @since 4.1
*/
GEO_WITHIN, //
/**
* @since 4.1
*/
GEO_CONTAINS, //
/**
* @since 4.3
*/
EMPTY, //
/**
* @since 4.3
*/
NOT_EMPTY;
/**
* @return true if this key does not have an associated value
* @since 4.4
*/
public boolean hasNoValue() {
return this == OperationKey.EXISTS || this == OperationKey.EMPTY || this == OperationKey.NOT_EMPTY;
}
/**
* @return true if this key does have an associated value
* @since 4.4
*/
public boolean hasValue() {
return !hasNoValue();
}
}
/**
* A class defining a single operation and it's argument value for the field of a {@link Criteria}.
*/
public static class CriteriaEntry {
private final OperationKey key;
@Nullable private Object value;
protected CriteriaEntry(OperationKey key) {
Assert.isTrue(key.hasNoValue(),
"key must be OperationKey.EXISTS, OperationKey.EMPTY or OperationKey.NOT_EMPTY for this call");
this.key = key;
}
CriteriaEntry(OperationKey key, Object value) {
Assert.notNull(key, "key must not be null");
Assert.notNull(value, "value must not be null");
this.key = key;
this.value = value;
}
public OperationKey getKey() {
return key;
}
public void setValue(Object value) {
Assert.notNull(value, "value must not be null");
this.value = value;
}
public Object getValue() {
Assert.isTrue(key != OperationKey.EXISTS, key.name() + " has no value");
Assert.notNull(value, "unexpected null value");
return value;
}
@Override
public boolean equals(Object o) {
if (this == o)
return true;
if (o == null || getClass() != o.getClass())
return false;
CriteriaEntry that = (CriteriaEntry) o;
if (key != that.key)
return false;
return Objects.equals(value, that.value);
}
@Override
public int hashCode() {
int result = key.hashCode();
result = 31 * result + (value != null ? value.hashCode() : 0);
return result;
}
@Override
public String toString() {
return "CriteriaEntry{" + "key=" + key + ", value=" + value + '}';
}
}
}
相关信息
spring-data-elasticsearch 源码目录
相关文章
spring-data-elasticsearch BaseQuery 源码
spring-data-elasticsearch BaseQueryBuilder 源码
spring-data-elasticsearch BulkOptions 源码
spring-data-elasticsearch ByQueryResponse 源码
spring-data-elasticsearch CriteriaQuery 源码
spring-data-elasticsearch CriteriaQueryBuilder 源码
spring-data-elasticsearch FetchSourceFilter 源码
spring-data-elasticsearch FetchSourceFilterBuilder 源码
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