com.datastax.oss.driver.api.querybuilder.schema.CreateFunctionStart Maven / Gradle / Ivy
/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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.datastax.oss.driver.api.querybuilder.schema;
import com.datastax.oss.driver.api.core.CqlIdentifier;
import com.datastax.oss.driver.api.core.type.DataType;
import com.datastax.oss.driver.api.core.type.DataTypes;
import com.datastax.oss.driver.api.querybuilder.SchemaBuilder;
import edu.umd.cs.findbugs.annotations.NonNull;
public interface CreateFunctionStart {
/**
* Adds IF NOT EXISTS to the create function specification. This indicates that the function
* should not be created if it already exists.
*/
@NonNull
CreateFunctionStart ifNotExists();
/**
* Adds OR REPLACE to the create function specification. This indicates that the function should
* replace an existing function with the same name if it exists.
*/
@NonNull
CreateFunctionStart orReplace();
/**
* Adds a parameter definition in the CREATE FUNCTION statement.
*
* Parameter keys are added in the order of their declaration.
*
*
To create the data type, use the constants and static methods in {@link DataTypes}, or
* {@link SchemaBuilder#udt(CqlIdentifier, boolean)}.
*/
@NonNull
CreateFunctionStart withParameter(@NonNull CqlIdentifier paramName, @NonNull DataType paramType);
/**
* Shortcut for {@link #withParameter(CqlIdentifier, DataType)
* withParameter(CqlIdentifier.asCql(paramName), dataType)}.
*/
@NonNull
default CreateFunctionStart withParameter(
@NonNull String paramName, @NonNull DataType paramType) {
return withParameter(CqlIdentifier.fromCql(paramName), paramType);
}
/**
* Adds RETURNS NULL ON NULL to the create function specification. This indicates that the body of
* the function should be skipped when null input is provided.
*/
@NonNull
CreateFunctionWithNullOption returnsNullOnNull();
/**
* Adds CALLED ON NULL to the create function specification. This indicates that the body of the
* function not be skipped when null input is provided.
*/
@NonNull
CreateFunctionWithNullOption calledOnNull();
}