com.google.cloud.bigquery.StandardSQLDataType Maven / Gradle / Ivy
/*
* Copyright 2019 Google LLC
*
* 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.google.cloud.bigquery;
import com.google.api.services.bigquery.model.StandardSqlDataType;
import com.google.auto.value.AutoValue;
import java.io.Serializable;
import javax.annotation.Nullable;
/** Represents Standard SQL data type information. */
@AutoValue
public abstract class StandardSQLDataType implements Serializable {
@AutoValue.Builder
public abstract static class Builder {
/** Sets the type of an array's elements, when the TypeKind is ARRAY. */
public abstract Builder setArrayElementType(StandardSQLDataType arrayElementType);
/** Sets the struct type definition (list of fields) when the TypeKind is STRUCT. */
public abstract Builder setStructType(StandardSQLStructType structType);
/**
* Sets the top-level type of this data type. Can be any standard SQL data type. For more
* information, see https://cloud.google.com/bigquery/docs/reference/standard-sql/data-types
*/
public abstract Builder setTypeKind(String typeKind);
/** Creates a {@code StandardSQLDataType} object. */
public abstract StandardSQLDataType build();
}
/**
* Returns the type kind of the data type.
*
* Can be any standard SQL data type. For more information, see
* https://cloud.google.com/bigquery/docs/reference/standard-sql/data-types
*/
public abstract String getTypeKind();
/** Returns the type of an ARRAY's elements. */
@Nullable
public abstract StandardSQLDataType getArrayElementType();
/** Returns the struct definition's list of fields for a STRUCT type. */
@Nullable
public abstract StandardSQLStructType getStructType();
public abstract Builder toBuilder();
public static Builder newBuilder() {
return new AutoValue_StandardSQLDataType.Builder();
}
/** Returns a new builder initialized with the type kind. */
public static Builder newBuilder(String typeKind) {
return newBuilder().setTypeKind(typeKind);
}
/** Returns a new builder initialized with a StandardSQLTypeName as the type kind. */
public static Builder newBuilder(StandardSQLTypeName typeName) {
return newBuilder().setTypeKind(typeName.toString());
}
StandardSqlDataType toPb() {
StandardSqlDataType dataTypePb = new StandardSqlDataType();
dataTypePb.setTypeKind(getTypeKind());
if (getArrayElementType() != null) {
dataTypePb.setArrayElementType(getArrayElementType().toPb());
}
if (getStructType() != null) {
dataTypePb.setStructType(getStructType().toPb());
}
return dataTypePb;
}
static StandardSQLDataType fromPb(StandardSqlDataType dataTypePb) {
Builder builder = newBuilder();
builder.setTypeKind(dataTypePb.getTypeKind());
if (dataTypePb.getArrayElementType() != null) {
builder.setArrayElementType(StandardSQLDataType.fromPb(dataTypePb.getArrayElementType()));
}
if (dataTypePb.getStructType() != null) {
builder.setStructType(StandardSQLStructType.fromPb(dataTypePb.getStructType()));
}
return builder.build();
}
}