Groovyでメソッド呼び出しのサンプル

callMethod.groovy

def method(Map map) {
  println 'signatures <map>'
  println "$map"
}

def method(Map map, String str) {
  println 'signatures <map, String>'
  println "$map, $str"
}

def method(Map map, String str1, String str2) {
  println 'signatures <map, String, String>'
  println "$map, $str1, $str2"
}

def method(Map map, String str1, String str2, String str3) {
  println 'signatures <map, String, String, String>'
  println "$map, $str1, $str2, $str3"
}

def method(Map map, String... strList) {
  println 'signatures <map, String...>'
  println "$map, $strList"
}

def line = { def _30 = '-'*30; println "$_30 $it $_30" }

line(1)
method(key1: 'value1')
line(3)
method(key1: 'value1', key2: 'value2')
line(3)
method(key1: 'value1', key2: 'value2', 'str1')
line(4)
method(key1: 'value1', key2: 'value2', 'str1', 'str2')
line(5)
method(key1: 'value1', key2: 'value2', 'str1', 'str2', 'str3')
line(6)
method(key1: 'value1', key2: 'value2', 'str1', 'str2', 'str3', 'str4')

// ↓これはエラー
//method('そして文字列', ’文字列2', [str: 'str1', str2: 'str2'])

//**参考
//[http://groovy.codehaus.org/Extended+Guide+to+Method+Signatures:title:bookmark]