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JPA-like syntax for annotating POJO classes for persistence via Cassandra's Java driver - API

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/*
 * Copyright (C) 2015-2015 The Helenus Driver Project 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
 *
 *      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.github.helenusdriver.driver;


/**
 * The CreateKeyspace interface provides support for the
 * CREATE KEYSPACE statement for a POJO.
 *
 * @copyright 2015-2015 The Helenus Driver Project Authors
 *
 * @author  The Helenus Driver Project Authors
 * @version 1 - Jan 15, 2015 - paouelle - Creation
 *
 * @param  The type of POJO associated with this statement.
 *
 * @since 1.0
 */
public interface CreateKeyspace
  extends Statement, SequenceableStatement {
  /**
   * Sets the 'IF NOT EXISTS' option for this CREATE KEYSPACE statement.
   * 

* A create with that option will not succeed unless the keyspace does not exist * at the time the creation is executing. The existence check and creations * are done transactionally in the sense that if multiple clients attempt to * create a given keyspace with this option, then at most one may succeed. *

* Please keep in mind that using this option has a non negligible performance * impact and should be avoided when possible. * * @author paouelle * * @return this CREATE KEYSPACE statement. */ public CreateKeyspace ifNotExists(); /** * Adds a WITH option to this statement. *

* This is a shorter/more readable version for {@code with().and(option)}. * * @author paouelle * * @param option the option to add * @return the WITH options of this statement to which more options can be * added * @throws NullPointerException if option is null */ public Options with(KeyspaceWith option); /** * Returns a WITH option for this statement. * * @author paouelle * * @return the WITH options of this statement to which more options can be * added */ public Options with(); /** * Adds a WHERE clause to this statement used to specify suffixes when required. * * This is a shorter/more readable version for {@code where().and(clauses)}. * * @author paouelle * * @param clause the clause to add * @return the where clause of this query to which more clause can be added. * @throws IllegalArgumentException if the clause doesn't reference a * suffix key defined in the POJO */ public Where where(Clause clause); /** * Returns a WHERE in-construct for this statement without adding clause. * * @author paouelle * * @return the where clause of this query to which more clause can be added. */ public Where where(); /** * The Options class defines an in-statement construct for * CREATE KEYSPACE options. * * @copyright 2015-2015 The Helenus Driver Project Authors * * @author The Helenus Driver Project Authors * @version 1 - Jan 15, 2015 - paouelle - Creation * * @param The type of POJO associated with this statement. * * @since 1.0 */ public interface Options extends Statement, SequenceableStatement { /** * Adds a WITH option to this statement. * * @author paouelle * * @param option the option to add * @return this WITH options * @throws NullPointerException if option is null */ public Options and(KeyspaceWith option); /** * Adds a WHERE clause to this statement used to specify suffixes when required. * * This is a shorter/more readable version for {@code where().and(clauses)}. * * @author paouelle * * @param clause the clause to add * @return the where clause of this query to which more clause can be added * @throws IllegalArgumentException if the clause doesn't reference a * suffix key defined in the POJO */ public Where where(Clause clause); /** * Returns a WHERE in-construct for this statement without adding clause. * * @author paouelle * * @return the where clause of this query to which more clause can be added. */ public Where where(); } /** * The Where interface defines a WHERE clause for the CREATE * KEYSPACE statement which can be used to specify suffix keys used for the * keyspace name. * * @copyright 2015-2015 The Helenus Driver Project Authors * * @author The Helenus Driver Project Authors * @version 1 - Jan 15, 2015 - paouelle - Creation * * @param The type of POJO associated with the statement. * * @since 1.0 */ public interface Where extends Statement, SequenceableStatement { /** * Adds the provided clause to this WHERE clause. * * @author paouelle * * @param clause the clause to add. * @return this WHERE clause. * @throws NullPointerException if clause is null * @throws IllegalArgumentException if the clause doesn't reference a * suffix key defined in the POJO */ public Where and(Clause clause); } }





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