Package com.basho.riak.client.api.commands.datatypes

Source Code of com.basho.riak.client.api.commands.datatypes.SetUpdate

/*
* Copyright 2013 Basho Technologies 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.basho.riak.client.api.commands.datatypes;

import com.basho.riak.client.core.query.crdt.ops.SetOp;
import com.basho.riak.client.core.util.BinaryValue;

import java.util.HashSet;
import java.util.Set;

/**
* An update to a Riak set datatype.
* <p>
* When building an {@link UpdateSet} or {@link UpdateMap} command
* this class is used to encapsulate the update to be performed on a
* Riak set datatype.
* </p>
* @author Dave Rusek <drusek at basho dot com>
* @since 2.0
*/
public class SetUpdate implements DatatypeUpdate
{

    private final Set<BinaryValue> adds = new HashSet<BinaryValue>();
    private final Set<BinaryValue> removes = new HashSet<BinaryValue>();

    /**
     * Constructs an empty SetUpdate.
     */
    public SetUpdate()
    {
    }

    /**
     * Add the provided value to the set in Riak.
     * @param value the value to be added.
     * @return a reference to this object.
     */
    public SetUpdate add(BinaryValue value)
    {
        this.adds.add(value);
        return this;
    }

    /**
     * Add the provided value to the set in Riak.
     * @param value the value to be added.
     * @return a reference to this object.
     */
    public SetUpdate add(String value)
    {
        this.adds.add(BinaryValue.create(value));
        return this;
    }
   
    /**
     * Remove the provided value from the set in Riak.
     * @param value the value to be removed.
     * @return a reference to this object.
     */
    public SetUpdate remove(BinaryValue value)
    {
        this.removes.add(value);
        return this;
    }
   
    /**
     * Remove the provided value from the set in Riak.
     * @param value the value to be removed.
     * @return a reference to this object.
     */
    public SetUpdate remove(String value)
    {
        this.removes.add(BinaryValue.create(value));
        return this;
    }

    /**
     * Get the set of additions contained in this update.
     * @return the set of additions.
     */
    public Set<BinaryValue> getAdds()
    {
        return adds;
    }

    /**
     * Get the set of removes contained in this update.
     * @return the set of removes.
     */
    public Set<BinaryValue> getRemoves()
    {
        return removes;
    }

    /**
     * Returns the core update.
     * @return the update used by the client core.
     */
    @Override
    public SetOp getOp()
    {
        return new SetOp(adds, removes);
    }
   
    @Override
    public String toString()
    {
        return "Add: " + adds + " Remove: " + removes;
    }
}
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