this.headerKey = headerKey;
    }

    /**
     * Sets whether the header value is encrypted.
     * @param encryptedHeaderValue Whether the header value is encrypted.
     */
    public void setEncryptedHeaderValue(final boolean encryptedHeaderValue) {
        this.encryptedHeaderValue = encryptedHeaderValue;
    }

    /**
     * Sets the cookie key.
     * @param cookieKey The cookie key.
     */

		<!-- 
		<property name="parameterKey">"fessRoles"</property>
		<property name="encryptedParameterValue">false</property>
		<property name="headerKey">"fessRoles"</property>
		<property name="encryptedHeaderValue">true</property>
		<property name="cookieKey">"fessRoles"</property>
		<property name="encryptedCookieValue">true</property>
		<property name="cipher">
			<component class="org.codelibs.core.crypto.CachedCipher">

        roleQueryHelperImpl.headerKey = "fess3";

        roleQueryHelperImpl.encryptedHeaderValue = false;
        roleSet = buildByHeader(roleQueryHelperImpl, getMockRequest());
        assertEquals(0, roleSet.size());

        roleQueryHelperImpl.headerKey = "fess4";

        roleQueryHelperImpl.cipher = cipher;
        roleQueryHelperImpl.encryptedHeaderValue = true;
        roleSet = buildByHeader(roleQueryHelperImpl, getMockRequest());