com.blazebit.persistence.FromBuilder Maven / Gradle / Ivy
/*
* Copyright 2014 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;
/**
* An interface for builders that support the from clause.
*
* @param The concrete builder type
* @author Christian Beikov
* @since 1.1.0
*/
public interface FromBuilder> {
/**
* Like {@link FromBuilder#from(Class, String))} with the
* alias equivalent to the camel cased result of what {@link Class#getSimpleName()} of the entity class returns.
*
* @param entityClass The entity class which should be queried
* @return The query builder for chaining calls
*/
public X from(Class entityClass);
/**
* Sets the entity class on which the query should be based on with the given alias.
*
* @param entityClass The entity class which should be queried
* @param alias The alias for the entity
* @return The query builder for chaining calls
*/
public X from(Class entityClass, String alias);
/**
* Like {@link FromBuilder#from(Class))} but explicitly queries the data before any side effects happen because of CTEs.
*
* @param entityClass The entity class which should be queried
* @return The query builder for chaining calls
* @since 1.1.0
*/
public X fromOld(Class entityClass);
/**
* Like {@link FromBuilder#from(Class, String))} but explicitly queries the data before any side effects happen because of CTEs.
*
* @param entityClass The entity class which should be queried
* @param alias The alias for the entity
* @return The query builder for chaining calls
* @since 1.1.0
*/
public X fromOld(Class entityClass, String alias);
/**
* Like {@link FromBuilder#from(Class))} but explicitly queries the data after any side effects happen because of CTEs.
*
* @param entityClass The entity class which should be queried
* @return The query builder for chaining calls
* @since 1.1.0
*/
public X fromNew(Class entityClass);
/**
* Like {@link FromBuilder#from(Class, String))} but explicitly queries the data after any side effects happen because of CTEs.
*
* @param entityClass The entity class which should be queried
* @param alias The alias for the entity
* @return The query builder for chaining calls
* @since 1.1.0
*/
public X fromNew(Class entityClass, String alias);
/*
* Join methods
*/
/**
* Adds a join to the query, possibly specializing implicit joins, and giving the joined element an alias.
* The resulting join is different from a default join because it can only be referred to via it's alias.
*
* @param path The path to join
* @param alias The alias for the joined element
* @param type The join type
* @return The query builder for chaining calls
*/
public X join(String path, String alias, JoinType type);
/**
* Adds a join to the query, possibly specializing implicit joins, and giving the joined element an alias.
* The resulting join will be the default join meaning that expressions which use the absolute path will refer to this join.
*
* @param path The path to join
* @param alias The alias for the joined element
* @param type The join type
* @return The query builder for chaining calls
*/
public X joinDefault(String path, String alias, JoinType type);
/**
* Adds a join with an on-clause to the query, possibly specializing implicit joins, and giving the joined element an alias.
*
*
* The resulting join is different from a default join because it can only be referred to via it's alias. The absolute path can only
* be used if the joined path is a map and the on-clause contains a EQ predicate with the KEY on the left hand side.
*
*
* @param path The path to join
* @param alias The alias for the joined element
* @param type The join type
* @return The restriction builder for the on-clause
*/
public JoinOnBuilder joinOn(String path, String alias, JoinType type);
/**
* Adds a join with an on-clause to the query, possibly specializing implicit joins, and giving the joined element an alias.
* The resulting join will be the default join meaning that expressions which use the absolute path will refer to this join.
*
* @param path The path to join
* @param alias The alias for the joined element
* @param type The join type
* @return The restriction builder for the on-clause
*/
public JoinOnBuilder joinDefaultOn(String path, String alias, JoinType type);
/**
* Like {@link FromBuilder#join(java.lang.String, java.lang.String, com.blazebit.persistence.JoinType) } but with
* {@link JoinType#INNER}.
*
* @param path The path to join
* @param alias The alias for the joined element
* @return The query builder for chaining calls
*/
public X innerJoin(String path, String alias);
/**
* Like {@link FromBuilder#joinDefault(java.lang.String, java.lang.String, com.blazebit.persistence.JoinType) } but with
* {@link JoinType#INNER}.
*
* @param path The path to join
* @param alias The alias for the joined element
* @return The query builder for chaining calls
*/
public X innerJoinDefault(String path, String alias);
/**
* Like {@link FromBuilder#joinOn(java.lang.String, java.lang.String, com.blazebit.persistence.JoinType) } but with
* {@link JoinType#INNER}.
*
* @param path The path to join
* @param alias The alias for the joined element
* @return The restriction builder for the on-clause
*/
public JoinOnBuilder innerJoinOn(String path, String alias);
/**
* Like {@link FromBuilder#joinDefaultOn(java.lang.String, java.lang.String, com.blazebit.persistence.JoinType) } but with
* {@link JoinType#INNER}.
*
* @param path The path to join
* @param alias The alias for the joined element
* @return The restriction builder for the on-clause
*/
public JoinOnBuilder innerJoinDefaultOn(String path, String alias);
/**
* Like {@link FromBuilder#join(java.lang.String, java.lang.String, com.blazebit.persistence.JoinType) } but with
* {@link JoinType#LEFT}.
*
* @param path The path to join
* @param alias The alias for the joined element
* @return The query builder for chaining calls
*/
public X leftJoin(String path, String alias);
/**
* Like {@link FromBuilder#joinDefault(java.lang.String, java.lang.String, com.blazebit.persistence.JoinType) } but with
* {@link JoinType#LEFT}.
*
* @param path The path to join
* @param alias The alias for the joined element
* @return The query builder for chaining calls
*/
public X leftJoinDefault(String path, String alias);
/**
* Like {@link FromBuilder#joinOn(java.lang.String, java.lang.String, com.blazebit.persistence.JoinType) } but with
* {@link JoinType#LEFT}.
*
* @param path The path to join
* @param alias The alias for the joined element
* @return The restriction builder for the on-clause
*/
public JoinOnBuilder leftJoinOn(String path, String alias);
/**
* Like {@link FromBuilder#joinDefaultOn(java.lang.String, java.lang.String, com.blazebit.persistence.JoinType) } but with
* {@link JoinType#LEFT}.
*
* @param path The path to join
* @param alias The alias for the joined element
* @return The restriction builder for the on-clause
*/
public JoinOnBuilder leftJoinDefaultOn(String path, String alias);
/**
* Like {@link FromBuilder#join(java.lang.String, java.lang.String, com.blazebit.persistence.JoinType) } but with
* {@link JoinType#RIGHT}.
*
* @param path The path to join
* @param alias The alias for the joined element
* @return The query builder for chaining calls
*/
public X rightJoin(String path, String alias);
/**
* Like {@link FromBuilder#joinDefault(java.lang.String, java.lang.String, com.blazebit.persistence.JoinType) } but with
* {@link JoinType#RIGHT}.
*
* @param path The path to join
* @param alias The alias for the joined element
* @return The query builder for chaining calls
*/
public X rightJoinDefault(String path, String alias);
/**
* Like {@link FromBuilder#joinOn(java.lang.String, java.lang.String, com.blazebit.persistence.JoinType) } but with
* {@link JoinType#RIGHT}.
*
* @param path The path to join
* @param alias The alias for the joined element
* @return The restriction builder for the on-clause
*/
public JoinOnBuilder rightJoinOn(String path, String alias);
/**
* Like {@link FromBuilder#joinDefaultOn(java.lang.String, java.lang.String, com.blazebit.persistence.JoinType) } but with
* {@link JoinType#RIGHT}.
*
* @param path The path to join
* @param alias The alias for the joined element
* @return The restriction builder for the on-clause
*/
public JoinOnBuilder rightJoinDefaultOn(String path, String alias);
}
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