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Code Issues Releases Wiki Activity

refactor sql parser.

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This commit is contained in:
wenshao
2017-08-29 17:10:26 +08:00
parent 2b164c377b
commit 718500cf59
24 changed files with 235 additions and 282 deletions
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src/main/java/com/alibaba/druid/stat/TableStat.java
+29 -40
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@@ -186,13 +186,13 @@ public class TableStat {
}
public static class Name {
private final String name;
private String name;
private int hash;
private final long hash;
public Name(String name){
this.name = name;
hash = FNVUtils.fnv_64_lower_normalized(name);
}
public String getName() {
@@ -200,11 +200,12 @@ public class TableStat {
}
public int hashCode() {
int h = hash;
if (h == 0 && name != null && name.length() > 0) {
hash = h = StringUtils.lowerHashCode(name);
}
return h;
long value = hashCode64();
return (int)(value ^ (value >>> 32));
}
public long hashCode64() {
return hash;
}
public boolean equals(Object o) {
@@ -213,16 +214,7 @@ public class TableStat {
}
Name other = (Name) o;
if (this.name == other.name) {
return true;
}
if (this.name == null | other.name == null) {
return false;
}
return this.name.equalsIgnoreCase(other.name);
return this.hash == other.hash;
}
public String toString() {
@@ -410,6 +402,8 @@ public class TableStat {
private final String table;
private final String name;
protected final long hashCode64;
private boolean where;
private boolean select;
private boolean groupBy;
@@ -428,11 +422,25 @@ public class TableStat {
*/
private String dataType;
protected long hashCode64;
public Column(String table, String name){
this.table = table;
this.name = name;
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);
}
}
public String getTable() {
@@ -452,24 +460,6 @@ public class TableStat {
}
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;
}
@@ -574,8 +564,7 @@ public class TableStat {
}
Column column = (Column) obj;
return hashCode64() == column.hashCode64();
return hashCode64 == column.hashCode64;
}
}