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Code Issues Releases Wiki Activity

mysql parser refactor.

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This commit is contained in:
wenshao
2017-08-29 14:33:44 +08:00
parent 833a9b5a65
commit 4a4fffbbb2
197 changed files with 3040 additions and 1037 deletions
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src/main/java/com/alibaba/druid/stat/TableStat.java
+32 -26
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@@ -15,6 +15,11 @@
*/
package com.alibaba.druid.stat;
import com.alibaba.druid.sql.SQLUtils;
import com.alibaba.druid.sql.ast.SQLExpr;
import com.alibaba.druid.sql.ast.expr.SQLPropertyExpr;
import com.alibaba.druid.util.FNVUtils;
import com.alibaba.druid.util.JdbcConstants;
import com.alibaba.druid.util.StringUtils;
import java.util.ArrayList;
@@ -423,6 +428,8 @@ public class TableStat {
*/
private String dataType;
protected long hashCode64;
public Column(String table, String name){
this.table = table;
this.name = name;
@@ -444,6 +451,28 @@ public class TableStat {
return fullName;
}
public long hashCode64() {
if (hashCode64 == 0) {
int p = table.indexOf('.');
if (p != -1) {
String dbType = null;
if (table.indexOf('`') != -1) {
dbType = JdbcConstants.MYSQL;
} else if (table.indexOf('[') != -1) {
dbType = JdbcConstants.SQL_SERVER;
} else if (table.indexOf('@') != -1) {
dbType = JdbcConstants.ORACLE;
}
SQLExpr owner = SQLUtils.toSQLExpr(table, dbType);
hashCode64 = FNVUtils.fnv_64_lower(new SQLPropertyExpr(owner, name));
} else {
hashCode64 = FNVUtils.fnv_64_lower(table, name);
}
}
return hashCode64;
}
public boolean isWhere() {
return where;
}
@@ -527,10 +556,8 @@ public class TableStat {
}
public int hashCode() {
int tableHashCode = table != null ? StringUtils.lowerHashCode(table) : 0;
int nameHashCode = name != null ? StringUtils.lowerHashCode(name) : 0;
return tableHashCode + nameHashCode;
long hash = hashCode64();
return (int)(hash ^ (hash >>> 32));
}
public String toString() {
@@ -542,34 +569,13 @@ public class TableStat {
}
public boolean equals(Object obj) {
if (!(obj instanceof Column)) {
return false;
}
Column column = (Column) obj;
if (table == null) {
if (column.getTable() != null) {
return false;
}
} else {
if (!table.equalsIgnoreCase(column.getTable())) {
return false;
}
}
if (name == null) {
if (column.getName() != null) {
return false;
}
} else {
if (!name.equalsIgnoreCase(column.getName())) {
return false;
}
}
return true;
return hashCode64() == column.hashCode64();
}
}