ExpectContinueTrigger.java

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 * to you under the Apache License, Version 2.0 (the
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 *
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package org.apache.hc.client5.http.config;

/**
 * Enumeration of strategies that govern automatic inclusion of the
 * {@code Expect: 100-continue} request header when
 * {@link org.apache.hc.client5.http.config.RequestConfig#isExpectContinueEnabled()
 * expect-continue support} is enabled.
 *
 * @since 5.6
 */
public enum ExpectContinueTrigger {

    /**
     * Always add {@code Expect: 100-continue} to every entity-enclosing request.
     */
    ALWAYS,

    /**
     * Add {@code Expect: 100-continue} <em>only</em> when the underlying
     * connection has already processed at least one request (that is, when the
     * socket has been taken from the connection pool and may be stale).
     */
    IF_REUSED
}