com.b2international.index.query.SetPredicate.java Source code

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Here is the source code for com.b2international.index.query.SetPredicate.java

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/*
 * Copyright 2011-2016 B2i Healthcare Pte Ltd, http://b2i.sg
 * 
 * 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.b2international.index.query;

import java.util.Objects;
import java.util.Set;

import com.b2international.commons.StringUtils;
import com.google.common.collect.ImmutableSet;

/**
 * @since 5.0
 */
public abstract class SetPredicate<T> extends Predicate {

    private final Set<T> values;

    SetPredicate(String field, Iterable<T> values) {
        super(field);
        this.values = ImmutableSet.copyOf(values);
    }

    @Override
    public int hashCode() {
        return Objects.hash(getField(), values);
    }

    @Override
    public boolean equals(Object obj) {
        if (super.equals(obj)) {
            final SetPredicate<?> other = (SetPredicate<?>) obj;
            return Objects.equals(values, other.values);
        }
        return false;
    }

    public Set<T> values() {
        return values;
    }

    @Override
    public String toString() {
        return String.format("%s IN(%s)", getField(), sublist());
    }

    private String sublist() {
        if (values.size() < 10) {
            return values.toString();
        } else {
            return StringUtils.limitedToString(values, 10);
        }
    }

}