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Java JDBC 4.2 (JRE 8+) driver for Redshift database

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/*
 * Copyright (c) 2014, PostgreSQL Global Development Group
 * See the LICENSE file in the project root for more information.
 */

package com.amazon.redshift.hostchooser;

import com.amazon.redshift.util.HostSpec;

import java.util.Collection;
import java.util.Collections;
import java.util.Iterator;

/**
 * Host chooser that returns the single host.
 */
class SingleHostChooser implements HostChooser {
  private final Collection candidateHost;

  SingleHostChooser(HostSpec hostSpec, HostRequirement targetServerType) {
    this.candidateHost = Collections.singletonList(new CandidateHost(hostSpec, targetServerType));
  }

  @Override
  public Iterator iterator() {
    return candidateHost.iterator();
  }
}