Package com.alibaba.druid.sql.ast.expr

Examples of com.alibaba.druid.sql.ast.expr.SQLExistsExpr

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public class EqualTest_exists extends TestCase {

    public void test_exits() throws Exception {
        String sql = "exists (select 1)";
        String sql_c = "not exists (select 1)";
        SQLExistsExpr exprA, exprB, exprC;
        {
            OracleExprParser parser = new OracleExprParser(sql);
            exprA = (SQLExistsExpr) parser.expr();
        }
        {
            OracleExprParser parser = new OracleExprParser(sql);
            exprB = (SQLExistsExpr) parser.expr();
        }
        {
            OracleExprParser parser = new OracleExprParser(sql_c);
            exprC = (SQLExistsExpr) parser.expr();
        }
        Assert.assertEquals(exprA, exprB);
        Assert.assertNotEquals(exprA, exprC);
        Assert.assertTrue(exprA.equals(exprA));
        Assert.assertFalse(exprA.equals(new Object()));
        Assert.assertEquals(exprA.hashCode(), exprB.hashCode());
       
        Assert.assertEquals(new SQLExistsExpr(), new SQLExistsExpr());
        Assert.assertEquals(new SQLExistsExpr().hashCode(), new SQLExistsExpr().hashCode());
    }
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                sqlExpr = caseExpr;
                break;
            case EXISTS:
                lexer.nextToken();
                accept(Token.LPAREN);
                sqlExpr = new SQLExistsExpr(createSelectParser().select());
                accept(Token.RPAREN);
                break;
            case NOT:
                lexer.nextToken();
                if (lexer.token() == Token.EXISTS) {
                    lexer.nextToken();
                    accept(Token.LPAREN);
                    sqlExpr = new SQLExistsExpr(createSelectParser().select(), true);
                    accept(Token.RPAREN);
                } else if (lexer.token() == Token.LPAREN) {
                    lexer.nextToken();

                    SQLExpr notTarget = expr();
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                sqlExpr = caseExpr;
                break;
            case EXISTS:
                lexer.nextToken();
                accept(Token.LPAREN);
                sqlExpr = new SQLExistsExpr(createSelectParser().select());
                accept(Token.RPAREN);
                break;
            case NOT:
                lexer.nextToken();
                if (lexer.token() == Token.EXISTS) {
                    lexer.nextToken();
                    accept(Token.LPAREN);
                    sqlExpr = new SQLExistsExpr(createSelectParser().select(), true);
                    accept(Token.RPAREN);
                } else if (lexer.token() == Token.LPAREN) {
                    lexer.nextToken();

                    SQLExpr notTarget = expr();
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                sqlExpr = caseExpr;
                break;
            case EXISTS:
                lexer.nextToken();
                accept(Token.LPAREN);
                sqlExpr = new SQLExistsExpr(createSelectParser().select());
                accept(Token.RPAREN);
                break;
            case NOT:
                lexer.nextToken();
                if (lexer.token() == Token.EXISTS) {
                    lexer.nextToken();
                    accept(Token.LPAREN);
                    sqlExpr = new SQLExistsExpr(createSelectParser().select(), true);
                    accept(Token.RPAREN);
                } else if (lexer.token() == Token.LPAREN) {
                    lexer.nextToken();

                    SQLExpr notTarget = expr();
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                sqlExpr = caseExpr;
                break;
            case EXISTS:
                lexer.nextToken();
                accept(Token.LPAREN);
                sqlExpr = new SQLExistsExpr(createSelectParser().select());
                accept(Token.RPAREN);
                break;
            case NOT:
                lexer.nextToken();
                if (lexer.token() == Token.EXISTS) {
                    lexer.nextToken();
                    accept(Token.LPAREN);
                    sqlExpr = new SQLExistsExpr(createSelectParser().select(), true);
                    accept(Token.RPAREN);
                } else if (lexer.token() == Token.LPAREN) {
                    lexer.nextToken();

                    SQLExpr notTarget = expr();
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                sqlExpr = caseExpr;
                break;
            case EXISTS:
                lexer.nextToken();
                accept(Token.LPAREN);
                sqlExpr = new SQLExistsExpr(createSelectParser().select());
                accept(Token.RPAREN);
                break;
            case NOT:
                lexer.nextToken();
                if (lexer.token() == Token.EXISTS) {
                    lexer.nextToken();
                    accept(Token.LPAREN);
                    sqlExpr = new SQLExistsExpr(createSelectParser().select(), true);
                    accept(Token.RPAREN);
                } else if (lexer.token() == Token.LPAREN) {
                    lexer.nextToken();

                    SQLExpr notTarget = expr();
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                sqlExpr = caseExpr;
                break;
            case EXISTS:
                lexer.nextToken();
                accept(Token.LPAREN);
                sqlExpr = new SQLExistsExpr(createSelectParser().select());
                accept(Token.RPAREN);
                break;
            case NOT:
                lexer.nextToken();
                if (lexer.token() == Token.EXISTS) {
                    lexer.nextToken();
                    accept(Token.LPAREN);
                    sqlExpr = new SQLExistsExpr(createSelectParser().select(), true);
                    accept(Token.RPAREN);
                } else if (lexer.token() == Token.LPAREN) {
                    lexer.nextToken();

                    SQLExpr notTarget = expr();
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                sqlExpr = caseExpr;
                break;
            case EXISTS:
                lexer.nextToken();
                accept(Token.LPAREN);
                sqlExpr = new SQLExistsExpr(createSelectParser().select());
                accept(Token.RPAREN);
                break;
            case NOT:
                lexer.nextToken();
                if (lexer.token() == Token.EXISTS) {
                    lexer.nextToken();
                    accept(Token.LPAREN);
                    sqlExpr = new SQLExistsExpr(createSelectParser().select(), true);
                    accept(Token.RPAREN);
                } else if (lexer.token() == Token.LPAREN) {
                    lexer.nextToken();

                    SQLExpr notTarget = expr();
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                sqlExpr = caseExpr;
                break;
            case EXISTS:
                lexer.nextToken();
                accept(Token.LPAREN);
                sqlExpr = new SQLExistsExpr(createSelectParser().select());
                accept(Token.RPAREN);
                break;
            case NOT:
                lexer.nextToken();
                if (lexer.token() == Token.EXISTS) {
                    lexer.nextToken();
                    accept(Token.LPAREN);
                    sqlExpr = new SQLExistsExpr(createSelectParser().select(), true);
                    accept(Token.RPAREN);
                } else if (lexer.token() == Token.LPAREN) {
                    lexer.nextToken();

                    SQLExpr notTarget = expr();
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                sqlExpr = caseExpr;
                break;
            case EXISTS:
                lexer.nextToken();
                accept(Token.LPAREN);
                sqlExpr = new SQLExistsExpr(createSelectParser().select());
                accept(Token.RPAREN);
                break;
            case NOT:
                lexer.nextToken();
                if (lexer.token() == Token.EXISTS) {
                    lexer.nextToken();
                    accept(Token.LPAREN);
                    sqlExpr = new SQLExistsExpr(createSelectParser().select(), true);
                    accept(Token.RPAREN);
                } else if (lexer.token() == Token.LPAREN) {
                    lexer.nextToken();

                    SQLExpr notTarget = expr();
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Related Classes of com.alibaba.druid.sql.ast.expr.SQLExistsExpr

  • com.alibaba.druid.bvt.sql.EqualTest_exists
  • com.alibaba.druid.sql.parser.SQLExprParser
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