本文整理了Java中org.apache.calcite.util.Util.toJavaId()方法的一些代码示例，展示了Util.toJavaId()的具体用法。这些代码示例主要来源于Github/Stackoverflow/Maven等平台，是从一些精选项目中提取出来的代码，具有较强的参考意义，能在一定程度帮忙到你。Util.toJavaId()方法的具体详情如下：
包路径：org.apache.calcite.util.Util
类名称：Util
方法名：toJavaId

Util.toJavaId介绍

[英]Converts an arbitrary string into a string suitable for use as a Java identifier.

The mapping is one-to-one (that is, distinct strings will produce distinct java identifiers). The mapping is also reversible, but the inverse mapping is not implemented.

A valid Java identifier must start with a Unicode letter, underscore, or dollar sign ($). The other characters, if any, can be a Unicode letter, underscore, dollar sign, or digit.

This method uses an algorithm similar to URL encoding. Valid characters are unchanged; invalid characters are converted to an underscore followed by the hex code of the character; and underscores are doubled.

Examples:

• toJavaId("foo") returns "foo"
• toJavaId("foo bar") returns "foo_20_bar"
• toJavaId("foo_bar") returns "foo__bar"
• toJavaId("0bar") returns "_40_bar" (digits are illegal as a prefix)
• toJavaId("foo0bar") returns "foo0bar"
  [中]

代码示例

代码示例来源：origin: Qihoo360/Quicksql

@Test public void testToJavaId() throws UnsupportedEncodingException {
 assertEquals(
   "ID$0$foo",
   Util.toJavaId("foo", 0));
 assertEquals(
   "ID$0$foo_20_bar",
   Util.toJavaId("foo bar", 0));
 assertEquals(
   "ID$0$foo__bar",
   Util.toJavaId("foo_bar", 0));
 assertEquals(
   "ID$100$_30_bar",
   Util.toJavaId("0bar", 100));
 assertEquals(
   "ID$0$foo0bar",
   Util.toJavaId("foo0bar", 0));
 assertEquals(
   "ID$0$it_27_s_20_a_20_bird_2c__20_it_27_s_20_a_20_plane_21_",
   Util.toJavaId("it's a bird, it's a plane!", 0));
   Util.toJavaId(
     "\u00f6\u00cb\u00c4\u00ca\u00ae\u00c1\u00f9\u00cb",
     0));
 assertEquals(
   "ID$0$_f6cb__c4ca__aec1__f9cb_",
   Util.toJavaId("\uf6cb\uc4ca\uaec1\uf9cb", 0));
 byte[] bytes1 = {3, 12, 54, 23, 33, 23, 45, 21, 127, -34, -92, -113};
 assertEquals(
   "ID$0$_3__c_6_17__21__17__2d__15__7f__6cd9__fffd_",
   Util.toJavaId(

代码示例来源：origin: org.apache.calcite/calcite-core

@Test public void testToJavaId() throws UnsupportedEncodingException {
 assertEquals(
   "ID$0$foo",
   Util.toJavaId("foo", 0));
 assertEquals(
   "ID$0$foo_20_bar",
   Util.toJavaId("foo bar", 0));
 assertEquals(
   "ID$0$foo__bar",
   Util.toJavaId("foo_bar", 0));
 assertEquals(
   "ID$100$_30_bar",
   Util.toJavaId("0bar", 100));
 assertEquals(
   "ID$0$foo0bar",
   Util.toJavaId("foo0bar", 0));
 assertEquals(
   "ID$0$it_27_s_20_a_20_bird_2c__20_it_27_s_20_a_20_plane_21_",
   Util.toJavaId("it's a bird, it's a plane!", 0));
   Util.toJavaId(
     "\u00f6\u00cb\u00c4\u00ca\u00ae\u00c1\u00f9\u00cb",
     0));
 assertEquals(
   "ID$0$_f6cb__c4ca__aec1__f9cb_",
   Util.toJavaId("\uf6cb\uc4ca\uaec1\uf9cb", 0));
 byte[] bytes1 = {3, 12, 54, 23, 33, 23, 45, 21, 127, -34, -92, -113};
 assertEquals(
   "ID$0$_3__c_6_17__21__17__2d__15__7f__6cd9__fffd_",
   Util.toJavaId(

代码示例来源：origin: Qihoo360/Quicksql

String aggName = "a" + agg.aggIdx;
if (CalcitePrepareImpl.DEBUG) {
 aggName = Util.toJavaId(agg.call.getAggregation().getName(), 0)
   .substring("ID$0$".length()) + aggName;

代码示例来源：origin: org.apache.calcite/calcite-core

String aggName = "a" + agg.aggIdx;
if (CalcitePrepareImpl.DEBUG) {
 aggName = Util.toJavaId(agg.call.getAggregation().getName(), 0)
   .substring("ID$0$".length()) + aggName;

代码示例来源：origin: Qihoo360/Quicksql

String aggName = "a" + agg.aggIdx;
if (CalcitePrepareImpl.DEBUG) {
 aggName = Util.toJavaId(agg.call.getAggregation().getName(), 0)
   .substring("ID$0$".length()) + aggName;

代码示例来源：origin: org.apache.calcite/calcite-core

String aggName = "a" + agg.aggIdx;
if (CalcitePrepareImpl.DEBUG) {
 aggName = Util.toJavaId(agg.call.getAggregation().getName(), 0)
   .substring("ID$0$".length()) + aggName;