com.datastax.driver.core.schemabuilder.UDTType Maven / Gradle / Ivy
/*
* Copyright DataStax, Inc.
*
* 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.datastax.driver.core.schemabuilder;
import com.datastax.driver.core.DataType;
/**
* Represents a CQL type containing a user-defined type (UDT) in a SchemaBuilder statement.
*
* Use {@link SchemaBuilder#frozen(String)} or {@link SchemaBuilder#udtLiteral(String)} to build
* instances of this type.
*/
public final class UDTType implements ColumnType {
private final String asCQLString;
private UDTType(String asCQLString) {
this.asCQLString = asCQLString;
}
@Override
public String asCQLString() {
return asCQLString;
}
static UDTType frozen(String udtName) {
SchemaStatement.validateNotEmpty(udtName, "UDT name");
return new UDTType("frozen<" + udtName + ">");
}
static UDTType list(UDTType elementType) {
return new UDTType("list<" + elementType.asCQLString() + ">");
}
static UDTType set(UDTType elementType) {
return new UDTType("set<" + elementType.asCQLString() + ">");
}
static UDTType mapWithUDTKey(UDTType keyType, DataType valueType) {
return new UDTType("map<" + keyType.asCQLString() + ", " + valueType + ">");
}
static UDTType mapWithUDTValue(DataType keyType, UDTType valueType) {
return new UDTType("map<" + keyType + ", " + valueType.asCQLString() + ">");
}
static UDTType mapWithUDTKeyAndValue(UDTType keyType, UDTType valueType) {
return new UDTType("map<" + keyType.asCQLString() + ", " + valueType.asCQLString() + ">");
}
static UDTType literal(String literal) {
SchemaStatement.validateNotEmpty(literal, "UDT type literal");
return new UDTType(literal);
}
}