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Added a way to other operations than "WHERE" selectors

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This commit is contained in:
Pepich 2017-02-18 16:33:18 +01:00
parent 3d83c1dff8
commit 9eec4c9240
1 changed files with 73 additions and 36 deletions
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109
src/com/redstoner/misc/mysql/elements/MysqlTable.java
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@ -8,89 +8,126 @@ import java.util.List;
import com.redstoner.misc.mysql.MysqlQueryHandler;
public class MysqlTable {
public class MysqlTable
{
private MysqlDatabase database;
private String name;
public MysqlTable(MysqlDatabase database, String name) {
public MysqlTable(MysqlDatabase database, String name)
{
this.database = database;
this.name = name;
}
public String getName() {
public String getName()
{
return this.name;
}
public MysqlField[] describe() {
try {
public MysqlField[] describe()
{
try
{
List<MysqlField> description = new ArrayList<>();
DatabaseMetaData metadata = database.getConnection().getMetaData();
ResultSet queryResults = metadata.getColumns(null, null, name, null);
while (queryResults.next()) {
description.add(new MysqlField(queryResults.getString(4), queryResults.getString(6).split(" ")[0] + "(" + queryResults.getString(7) + ")", queryResults.getBoolean(11)));
while (queryResults.next())
{
description.add(new MysqlField(queryResults.getString(4),
queryResults.getString(6).split(" ")[0] + "(" + queryResults.getString(7) + ")",
queryResults.getBoolean(11)));
}
return description.toArray(new MysqlField[0]);
} catch (SQLException e) {
}
catch (SQLException e)
{
e.printStackTrace();
return null;
}
}
public boolean insert(String... values) {
public boolean insert(String... values)
{
MysqlField[] description = describe();
if (values.length > 0 && values.length == description.length) {
if (values.length > 0 && values.length == description.length)
{
String val = "(\"" + String.join("\",\"", values) + "\")";
return MysqlQueryHandler.queryNoResult(database.getConnection(), "INSERT INTO `" + name + "` VALUES " + val + ";");
} else {
return MysqlQueryHandler.queryNoResult(database.getConnection(),
"INSERT INTO `" + name + "` VALUES " + val + ";");
}
else
{
return false;
}
}
public Object[] get(String fieldName, MysqlConstraint... constraints) {
ResultSet results = MysqlQueryHandler.queryResult(database.getConnection(), "SELECT " + fieldName + " FROM `" + name + "`" + getConstraints(constraints) + ";");
public Object[] get(String fieldName, MysqlConstraint... constraints)
{
ResultSet results = MysqlQueryHandler.queryResult(database.getConnection(),
"SELECT " + fieldName + " FROM `" + name + "`" + getConstraints(constraints) + ";");
List<Object> resObj = new ArrayList<>();
try {
while (results.next()) {
try
{
while (results.next())
{
resObj.add(results.getObject(1));
}
} catch (SQLException e) {
}
catch (SQLException e)
{
e.printStackTrace();
return new Object[0];
}
return resObj.toArray(new Object[0]);
}
public boolean delete(MysqlConstraint... constraints) {
return MysqlQueryHandler.queryNoResult(database.getConnection(), "DELETE FROM `" + name + "`" + getConstraints(constraints) + ";");
public Object[] get(String statement)
{
ResultSet results = MysqlQueryHandler.queryResult(database.getConnection(), statement);
List<Object> resObj = new ArrayList<>();
try
{
while (results.next())
{
resObj.add(results.getObject(1));
}
}
catch (SQLException e)
{
e.printStackTrace();
return new Object[0];
}
return resObj.toArray(new Object[0]);
}
public boolean drop() {
public boolean delete(MysqlConstraint... constraints)
{
return MysqlQueryHandler.queryNoResult(database.getConnection(),
"DELETE FROM `" + name + "`" + getConstraints(constraints) + ";");
}
public boolean drop()
{
return MysqlQueryHandler.queryNoResult(database.getConnection(), "DROP TABLE `" + name + "`;");
}
private String getConstraints(MysqlConstraint... constraints) {
private String getConstraints(MysqlConstraint... constraints)
{
String cons = "";
if (constraints.length > 0) {
if (constraints.length > 0)
{
cons += " WHERE ";
for (int i = 0; i < constraints.length; i++) {
for (int i = 0; i < constraints.length; i++)
{
MysqlConstraint constraint = constraints[i];
cons += constraint.getFieldName() + constraint.getOperator().toString() + "\"" + constraint.getValue() + "\"";
if (i < constraints.length - 1) {
cons += constraint.getFieldName() + constraint.getOperator().toString() + "\"" + constraint.getValue()
+ "\"";
if (i < constraints.length - 1)
{
cons += " AND ";
}
}
}
return cons;
}
}