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Code Issues Releases Wiki Activity

支持Oracle CURSOR表达式

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git-svn-id: http://code.alibabatech.com/svn/druid/trunk@948 b9813039-fb51-4c41-a8b9-e21c2acb5095
This commit is contained in:
wenshao
2011-10-12 15:33:31 +00:00
parent e4be8e5527
commit 34fee37f94
10 changed files with 150 additions and 14 deletions
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src/main/java/com/alibaba/druid/sql/dialect/oracle/ast/expr/OracleCursorExpr.java
+42
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@@ -0,0 +1,42 @@
package com.alibaba.druid.sql.dialect.oracle.ast.expr;
import com.alibaba.druid.sql.ast.SQLExprImpl;
import com.alibaba.druid.sql.ast.statement.SQLSelect;
import com.alibaba.druid.sql.dialect.oracle.visitor.OracleASTVisitor;
import com.alibaba.druid.sql.visitor.SQLASTVisitor;
public class OracleCursorExpr extends SQLExprImpl {
private static final long serialVersionUID = 1L;
private SQLSelect query;
public OracleCursorExpr(){
}
public OracleCursorExpr(SQLSelect query){
super();
this.query = query;
}
public SQLSelect getQuery() {
return query;
}
public void setQuery(SQLSelect query) {
this.query = query;
}
@Override
protected void accept0(SQLASTVisitor visitor) {
this.accept0((OracleASTVisitor) visitor);
}
protected void accept0(OracleASTVisitor visitor) {
if (visitor.visit(this)) {
acceptChild(visitor, query);
}
}
}
src/main/java/com/alibaba/druid/sql/dialect/oracle/parser/OracleExprParser.java
+23 -1
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@@ -30,6 +30,7 @@ import com.alibaba.druid.sql.dialect.oracle.ast.expr.OracleAnalytic;
import com.alibaba.druid.sql.dialect.oracle.ast.expr.OracleAnalyticWindowing;
import com.alibaba.druid.sql.dialect.oracle.ast.expr.OracleBinaryDoubleExpr;
import com.alibaba.druid.sql.dialect.oracle.ast.expr.OracleBinaryFloatExpr;
import com.alibaba.druid.sql.dialect.oracle.ast.expr.OracleCursorExpr;
import com.alibaba.druid.sql.dialect.oracle.ast.expr.OracleDateExpr;
import com.alibaba.druid.sql.dialect.oracle.ast.expr.OracleDateTimeUnit;
import com.alibaba.druid.sql.dialect.oracle.ast.expr.OracleDbLinkExpr;
@@ -39,6 +40,7 @@ import com.alibaba.druid.sql.dialect.oracle.ast.expr.OracleIntervalType;
import com.alibaba.druid.sql.dialect.oracle.ast.expr.OraclePriorExpr;
import com.alibaba.druid.sql.dialect.oracle.ast.expr.OracleTimestampExpr;
import com.alibaba.druid.sql.dialect.oracle.ast.stmt.OracleOrderByItem;
import com.alibaba.druid.sql.dialect.oracle.ast.stmt.OracleSelect;
import com.alibaba.druid.sql.parser.Lexer;
import com.alibaba.druid.sql.parser.ParserException;
import com.alibaba.druid.sql.parser.SQLExprParser;
@@ -47,6 +49,14 @@ import com.alibaba.druid.sql.parser.Token;
public class OracleExprParser extends SQLExprParser {
public boolean allowStringAdditive = false;
/**
@@ -199,6 +209,18 @@ public class OracleExprParser extends SQLExprParser {
throw new ParserException("TODO");
}
return primaryRest(sqlExpr);
case CURSOR:
lexer.nextToken();
accept(Token.LPAREN);
OracleSelect select = createSelectParser().select();
OracleCursorExpr cursorExpr = new OracleCursorExpr(select);
accept(Token.RPAREN);
sqlExpr = cursorExpr;
return primaryRest(sqlExpr);
default:
return super.primary();
}
@@ -217,7 +239,7 @@ public class OracleExprParser extends SQLExprParser {
expr = dblink;
}
return super.primaryRest(expr);
}
src/main/java/com/alibaba/druid/sql/dialect/oracle/parser/OracleLexer.java
+2
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@@ -93,6 +93,8 @@ public class OracleLexer extends Lexer {
map.put("EXTRACT", Token.EXTRACT);
map.put("DATE", Token.DATE);
map.put("TIMESTAMP", Token.TIMESTAMP);
map.put("CURSOR", Token.CURSOR);
DEFAULT_ORACLE_KEYWORDS = new Keywords(map);
}
src/main/java/com/alibaba/druid/sql/dialect/oracle/visitor/OracleASTVIsitorAdapter.java
+11
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@@ -18,6 +18,7 @@ import com.alibaba.druid.sql.dialect.oracle.ast.expr.OracleAnalyticWindowing;
import com.alibaba.druid.sql.dialect.oracle.ast.expr.OracleArrayAccessExpr;
import com.alibaba.druid.sql.dialect.oracle.ast.expr.OracleBinaryDoubleExpr;
import com.alibaba.druid.sql.dialect.oracle.ast.expr.OracleBinaryFloatExpr;
import com.alibaba.druid.sql.dialect.oracle.ast.expr.OracleCursorExpr;
import com.alibaba.druid.sql.dialect.oracle.ast.expr.OracleDateExpr;
import com.alibaba.druid.sql.dialect.oracle.ast.expr.OracleDbLinkExpr;
import com.alibaba.druid.sql.dialect.oracle.ast.expr.OracleExtractExpr;
@@ -588,4 +589,14 @@ public class OracleASTVIsitorAdapter extends SQLASTVisitorAdapter implements Ora
}
@Override
public boolean visit(OracleCursorExpr x) {
return true;
}
@Override
public void endVisit(OracleCursorExpr x) {
}
}
src/main/java/com/alibaba/druid/sql/dialect/oracle/visitor/OracleASTVisitor.java
+5
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@@ -32,6 +32,7 @@ import com.alibaba.druid.sql.dialect.oracle.ast.expr.OracleAnalyticWindowing;
import com.alibaba.druid.sql.dialect.oracle.ast.expr.OracleArrayAccessExpr;
import com.alibaba.druid.sql.dialect.oracle.ast.expr.OracleBinaryDoubleExpr;
import com.alibaba.druid.sql.dialect.oracle.ast.expr.OracleBinaryFloatExpr;
import com.alibaba.druid.sql.dialect.oracle.ast.expr.OracleCursorExpr;
import com.alibaba.druid.sql.dialect.oracle.ast.expr.OracleDateExpr;
import com.alibaba.druid.sql.dialect.oracle.ast.expr.OracleDbLinkExpr;
import com.alibaba.druid.sql.dialect.oracle.ast.expr.OracleExtractExpr;
@@ -260,4 +261,8 @@ public interface OracleASTVisitor extends SQLASTVisitor {
boolean visit(OracleSelect x);
void endVisit(OracleSelect x);
boolean visit(OracleCursorExpr x);
void endVisit(OracleCursorExpr x);
}
src/main/java/com/alibaba/druid/sql/dialect/oracle/visitor/OracleOutputVisitor.java
+13
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@@ -45,6 +45,7 @@ import com.alibaba.druid.sql.dialect.oracle.ast.expr.OracleAnalyticWindowing;
import com.alibaba.druid.sql.dialect.oracle.ast.expr.OracleArrayAccessExpr;
import com.alibaba.druid.sql.dialect.oracle.ast.expr.OracleBinaryDoubleExpr;
import com.alibaba.druid.sql.dialect.oracle.ast.expr.OracleBinaryFloatExpr;
import com.alibaba.druid.sql.dialect.oracle.ast.expr.OracleCursorExpr;
import com.alibaba.druid.sql.dialect.oracle.ast.expr.OracleDateExpr;
import com.alibaba.druid.sql.dialect.oracle.ast.expr.OracleDbLinkExpr;
import com.alibaba.druid.sql.dialect.oracle.ast.expr.OracleExtractExpr;
@@ -1141,4 +1142,16 @@ public class OracleOutputVisitor extends SQLASTOutputVisitor implements OracleAS
return false;
}
@Override
public boolean visit(OracleCursorExpr x) {
print("CURSOR(");
x.getQuery().accept(this);
print(")");
return false;
}
@Override
public void endVisit(OracleCursorExpr x) {
}
}