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This is a utils library for java 8 project. It include parsec combinators and sql generators library.
There is a newer version: 2.9.2
package jaskell.sql;

import jaskell.script.Directive;
import jaskell.script.Parameter;

import java.util.Arrays;
import java.util.List;
import java.util.stream.Collectors;

public class SQL {
  public static Select select() {
    return new Select();
  }

  public static Select select(String names) {
    return new Select(names);
  }

  public static Select select(String... names) {
    return new Select(names);
  }

  public static Select select(Directive... names) {
    return new Select(names);
  }

  public static Select select(List names) {
    return new Select(names);
  }

  public static Insert insert() {
    return new Insert();
  }

  public static Update update(String name) {
    return new Update(name);
  }

  public static Update update(Name name) {
    return new Update(name);
  }

  public static Delete delete() {
    return new Delete();
  }

  public static With with() {
    return new With();
  }

  public static With with(String name) {
    return new With(name);
  }

  public static With with(Name name) {
    return new With(name);
  }

  public static Name n(String name) {
    return new Name(name);
  }

  public static Quot q(String name) {
    return new Quot(name);
  }

  public static List qs(String... names) {
    return Arrays.stream(names).map(Quot::new).collect(Collectors.toList());
  }

  public static Literal text(String content) {
    return new Literal(content);
  }

  public static  Literal l(T v) {
    return new Literal(v);
  }

  public static Predicate br(Predicate predicate) {
    Brackets re = new Brackets();
    re._segment = predicate;
    return re;
  }

  public static Parameter p(int index) {
    return new JDBCParameter<>(index, Object.class);
  }

  public static  Parameter p(int index, Class cls) {
    return new JDBCParameter<>(index, cls);
  }

  public static Parameter p(String key) {
    return new JDBCParameter<>(key);
  }

  public static  Parameter p(String key, Class cls) {
    return new JDBCParameter<>(key);
  }

  public static Parameter p(String placeHolder, int index) {
    return new JDBCParameter<>(placeHolder, index, Object.class);
  }

  public static  Parameter p(String placeHolder, int index, Class cls) {
    return new JDBCParameter<>(placeHolder, index, cls);
  }

  public static Parameter p(String placeHolder, String key) {
    return new JDBCParameter<>(placeHolder, key);
  }

  public static  Parameter p(String placeHolder, String key, Class cls) {
    return new JDBCParameter<>(placeHolder, key, cls);
  }

  public static And and(Directive left, Directive right) {
    And re = new And();
    re._left = left;
    re._right = right;
    return re;
  }

  public static Or or(Directive left, Directive right) {
    Or re = new Or();
    re._left = left;
    re._right = right;
    return re;
  }

  public static Equal eq(Directive left, Directive right) {
    Equal re = new Equal();
    re._left = left;
    re._right = right;
    return re;
  }

  public static Great gt(Directive left, Directive right) {
    Great re = new Great();
    re._left = left;
    re._right = right;
    return re;
  }

  public static Less lt(Directive left, Directive right) {
    Less re = new Less();
    re._left = left;
    re._right = right;
    return re;
  }

  public static GreateOrEqual ge(Directive left, Directive right) {
    GreateOrEqual re = new GreateOrEqual();
    re._left = left;
    re._right = right;
    return re;
  }

  public static LessOrEqual le(Directive left, Directive right) {
    LessOrEqual re = new LessOrEqual();
    re._left = left;
    re._right = right;
    return re;
  }

  public static NotEqual ne(Directive left, Directive right) {
    NotEqual re = new NotEqual();
    re._left = left;
    re._right = right;
    return re;
  }

  public static Like like(Directive left, Directive right) {
    Like re = new Like();
    re._left = left;
    re._right = right;
    return re;
  }

  public static Not not(Directive directive) {
    return new Not(directive);
  }

  public static Not not() {
    return new Not();
  }

  public static Func func(String name) {
    return new Func(name);
  }

  public static Func func(String name, Directive arg) {
    return new Func(name, arg);
  }

  public static Func func(String name, Directive... args) {
    return new Func(name, args);
  }

  public static Count count() {
    return new Count();
  }

  public static Count count(String name) {
    return new Count(name);
  }

  public static Count count(Name name) {
    return new Count(name);
  }

  public static Sum sum() {
    return new Sum();
  }

  public static Sum sum(String name) {
    return new Sum(name);
  }

  public static Sum sum(Name name) {
    return new Sum(name);
  }

  public static Case _case() {
    return new Case();
  }

  public static Case _case(Directive expr) {
    return new Case(expr);
  }

  public static Coalesce coalesce(String names) {
    return new Coalesce(names);
  }

  public static Coalesce coalesce(String... names) {
    return new Coalesce(names);
  }

  public static Coalesce coalesce(Directive... names) {
    return new Coalesce(names);
  }
}