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/*
* 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 edu.umd.cs.findbugs.annotations.NonNull;
public interface CreateFunctionWithLanguage {
/**
* Adds AS to the create function specification. This is used to specify the body of the function.
* Note that it is expected that the provided body is properly quoted as this method does not make
* that decision for the user. For simple cases, one should wrap the input in single quotes, i.e.
* 'myBody'. If the body itself contains single quotes, one could use a
* postgres-style string literal, which is surrounded in two dollar signs, i.e. $$ myBody $$
* .
*/
@NonNull
CreateFunctionEnd as(@NonNull String functionBody);
/**
* Adds AS to the create function specification and quotes the function body. Assumes that if the
* input body contains at least one single quote, to quote the body with two dollar signs, i.e.
* $$ myBody $$, otherwise the body is quoted with single quotes, i.e.
* ' myBody '. If the function body is already quoted {@link #as(String)} should be used
* instead.
*/
@NonNull
default CreateFunctionEnd asQuoted(@NonNull String functionBody) {
if (functionBody.contains("'")) {
return as("$$ " + functionBody + " $$");
} else {
return as('\'' + functionBody + '\'');
}
}
}