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/*
 * Copyright 2014 - 2020 Blazebit.
 *
 * 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
 *
 *      http://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 com.blazebit.persistence;

/**
 * The interface for binary predicate builders.
 * The left hand side and the operator are already known to the builder and the methods of this builder terminate the building process.
 *
 * @param  The builder type that is returned on terminal operations
 * @author Christian Beikov
 * @author Moritz Becker
 * @since 1.0.0
 */
public interface BinaryPredicateBuilder {

    /**
     * Uses the given value as right hand side for the binary predicate.
     * Finishes the binary predicate and adds it to the parent predicate container represented by the type T.
     *
     * @param value The value to use for the right hand side of the binary predicate
     * @return The parent predicate container builder
     */
    public T value(Object value);

    /**
     * Uses the given value as right hand side for the binary predicate rendered as literal.
     * Finishes the binary predicate and adds it to the parent predicate container represented by the type T.
     *
     * @param value The value to use for the right hand side of the binary predicate
     * @return The parent predicate container builder
     * @since 1.4.0
     */
    public T literal(Object value);

    /**
     * Uses the given expression as right hand side for the binary predicate.
     * Finishes the binary predicate and adds it to the parent predicate container represented by the type T.
     *
     * @param expression The expression to use for the right hand side of the binary predicate
     * @return The parent predicate container builder
     */
    public T expression(String expression);

    /**
     * Starts a {@link MultipleSubqueryInitiator} that uses the given expression as right hand side for the binary predicate.
     * 
     * 

* All occurrences of subsequently defined subqueryAliases in expression will be replaced by the respective subquery. * When the builder finishes, the predicate is added to the parent predicate container represented by the type T. *

* * @param expression The expression to use for the right hand side of the binary predicate * @return The subquery initiator for building multiple subqueries for their respective subqueryAliases * @since 1.2.0 */ public MultipleSubqueryInitiator subqueries(String expression); /** * Starts a {@link RestrictionBuilder} to create a when expression with a single predicate * in which {@code expression} will be on the left hand side of the predicate. * * @param expression The left hand side expression for a when predicate * @return The restriction builder for the given expression * * @see CaseWhenStarterBuilder#when(java.lang.String) More details about this method */ public RestrictionBuilder>> caseWhen(String expression); /** * Starts a {@link SubqueryInitiator} to create a when expression with a single predicate * in which the left hand side will be a subquery. * *

* When the subquery builder and the restriction builder for the right hand side are finished, the when predicate in conjunction * with its then expression are added to the case when builder. *

* * @return The subquery initiator for building a subquery * * @see CaseWhenStarterBuilder#whenSubquery() More details about this method */ public SubqueryInitiator>>> caseWhenSubquery(); /** * Starts a {@link SubqueryInitiator} to create a when expression with a single predicate * in which the left hand side will be a subquery. * *

* When the subquery builder and the restriction builder for the right hand side are finished, the when predicate in conjunction * with its then expression are added to the case when builder. *

* * @param subqueryAlias The alias for the subquery which will be replaced by the actual subquery * @param expression The expression which will be used as left hand side of a predicate. * This expression contains the {@code subqueryAlias} to define the insertion points for the subquery. * @return The subquery initiator for building a subquery * * @see CaseWhenStarterBuilder#whenSubquery(java.lang.String, java.lang.String) More details about this method */ public SubqueryInitiator>>> caseWhenSubquery(String subqueryAlias, String expression); /** * Starts a {@link SubqueryBuilder} based on the given criteria builder to create a when expression with a single predicate * in which the left hand side will be a subquery. * *

* When the subquery builder and the restriction builder for the right hand side are finished, the when predicate in conjunction * with its then expression are added to the case when builder. *

* * @param criteriaBuilder The criteria builder to base the subquery on * @return The subquery builder for building a subquery * @since 1.2.0 * * @see CaseWhenStarterBuilder#whenSubquery() More details about this method */ public SubqueryBuilder>>> caseWhenSubquery(FullQueryBuilder criteriaBuilder); /** * Starts a {@link SubqueryBuilder} based on the given criteria builder to create a when expression with a single predicate * in which the left hand side will be a subquery. * *

* When the subquery builder and the restriction builder for the right hand side are finished, the when predicate in conjunction * with its then expression are added to the case when builder. *

* * @param subqueryAlias The alias for the subquery which will be replaced by the actual subquery * @param expression The expression which will be used as left hand side of a predicate. * This expression contains the {@code subqueryAlias} to define the insertion points for the subquery. * @param criteriaBuilder The criteria builder to base the subquery on * @return The subquery builder for building a subquery * @since 1.2.0 * * @see CaseWhenStarterBuilder#whenSubquery(java.lang.String, java.lang.String) More details about this method */ public SubqueryBuilder>>> caseWhenSubquery(String subqueryAlias, String expression, FullQueryBuilder criteriaBuilder); /** * Starts a {@link SubqueryInitiator} for the left hand side of a when predicate. * *

* All occurrences of subsequently defined subqueryAliases in expression will be replaced by the respective subquery. * When the builder finishes, the select item is added to the parent container represented by the type X. *

* * @param expression The expression which will be added as select item. * This expression contains the {@code subqueryAlias} to define the insertion points for the subquery. * @return The subquery initiator for building a subquery * @since 1.2.0 */ public MultipleSubqueryInitiator>>> caseWhenSubqueries(String expression); /** * Starts a {@link SubqueryInitiator} to create a when expression with a single exists predicate. * *

* When the builder finishes, the when predicate in conjunction with its then expression are added to the case when builder. *

* * @return The subquery initiator for building a subquery * * @see CaseWhenStarterBuilder#whenExists() More details about this method */ public SubqueryInitiator>> caseWhenExists(); /** * Starts a {@link SubqueryInitiator} to create a when expression with a single negated exists predicate. * *

* When the builder finishes, the when predicate in conjunction with its then expression are added to the case when builder. *

* * @return The subquery initiator for building a subquery * * @see CaseWhenStarterBuilder#whenNotExists() More details about this method */ public SubqueryInitiator>> caseWhenNotExists(); /** * Starts a {@link SubqueryInitiator} to create a when expression with a single exists predicate. * *

* When the builder finishes, the when predicate in conjunction with its then expression are added to the case when builder. *

* * @param criteriaBuilder The criteria builder to base the subquery on * @return The subquery builder for building a subquery * @since 1.2.0 * * @see CaseWhenStarterBuilder#whenExists() More details about this method */ public SubqueryBuilder>> caseWhenExists(FullQueryBuilder criteriaBuilder); /** * Starts a {@link SubqueryInitiator} to create a when expression with a single negated exists predicate. * *

* When the builder finishes, the when predicate in conjunction with its then expression are added to the case when builder. *

* * @param criteriaBuilder The criteria builder to base the subquery on * @return The subquery builder for building a subquery * @since 1.2.0 * * @see CaseWhenStarterBuilder#whenNotExists() More details about this method */ public SubqueryBuilder>> caseWhenNotExists(FullQueryBuilder criteriaBuilder); /** * Starts a {@link CaseWhenAndThenBuilder} for building a when expression * with conjunctively connected predicates. * *

* When the builder finishes, the when predicate in conjunction with its then expression are added to the case when builder. *

* * @return The and predicate builder for the when expression * * @see CaseWhenStarterBuilder#whenAnd() More details about this method */ public CaseWhenAndThenBuilder> caseWhenAnd(); /** * Starts a {@link CaseWhenOrThenBuilder} for building a when expression * with disjunctively connected predicates. * * *

* When the builder finishes, the when predicate in conjunction with its then expression are added to the case when builder. *

* * @return The or predicate builder for the when expression * * @see CaseWhenStarterBuilder#whenOr() More details about this method */ public CaseWhenOrThenBuilder> caseWhenOr(); /** * Starts a {@link SimpleCaseWhenBuilder} for building a simple case when expression. * *

* When the builder finishes, the when predicate in conjunction with its then expression are added to the case when builder. *

* * @param caseOperand The case operand * @return The or predicate builder for the when expression * * @see SimpleCaseWhenStarterBuilder#when(java.lang.String, java.lang.String) More details about this method */ public SimpleCaseWhenBuilder simpleCase(String caseOperand); }




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