io.rdbc.japi.SqlParam Maven / Gradle / Ivy
/*
* Copyright 2016 rdbc contributors
*
* 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 io.rdbc.japi;
import java.util.NoSuchElementException;
import java.util.Optional;
public final class SqlParam {
private final Class type;
private final Optional value;
public static SqlParam sqlNull(Class type) {
return new SqlParam<>(type, Optional.empty());
}
public static SqlParam of(Class type, T value) {
return new SqlParam<>(type, Optional.of(value));
}
private SqlParam(Class type, Optional value) {
this.type = type;
this.value = value;
}
public Class getType() {
return type;
}
public T getValue() {
return value.orElseThrow(() ->
new NoSuchElementException("SqlParam value is null")
);
}
@Override
public boolean equals(Object o) {
if (this == o) return true;
if (o == null || getClass() != o.getClass()) return false;
SqlParam sqlParam = (SqlParam) o;
return type.equals(sqlParam.type) && value.equals(sqlParam.value);
}
@Override
public int hashCode() {
int result = type.hashCode();
result = 31 * result + value.hashCode();
return result;
}
@Override
public String toString() {
return "SqlParam{" +
"type=" + type +
", value=" + value.map(Object::toString).orElse("NULL") +
'}';
}
}