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Java idiomatic client for Google Cloud Datastore.
/*
* Copyright 2015 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.datastore;
import static com.google.datastore.v1.Value.KEY_VALUE_FIELD_NUMBER;
public final class KeyValue extends Value {
private static final long serialVersionUID = 571775607775319610L;
static final BaseMarshaller MARSHALLER =
new BaseMarshaller() {
private static final long serialVersionUID = -4653913699919198594L;
@Override
public int getProtoFieldId() {
return KEY_VALUE_FIELD_NUMBER;
}
@Override
public Builder newBuilder(Key key) {
return KeyValue.newBuilder(key);
}
@Override
protected Key getValue(com.google.datastore.v1.Value from) {
return Key.fromPb(from.getKeyValue());
}
@Override
protected void setValue(KeyValue from, com.google.datastore.v1.Value.Builder to) {
to.setKeyValue(from.get().toPb());
}
};
public static final class Builder extends Value.BaseBuilder {
public Builder() {
super(ValueType.KEY);
}
@Override
public KeyValue build() {
return new KeyValue(this);
}
}
public KeyValue(Key key) {
this(newBuilder(key));
}
private KeyValue(Builder builder) {
super(builder);
}
@Override
public Builder toBuilder() {
return new Builder().mergeFrom(this);
}
public static KeyValue of(Key key) {
return new KeyValue(key);
}
public static Builder newBuilder(Key key) {
return new Builder().set(key);
}
}