db.sql.api.cmd.basic.SQLCmdAll Maven / Gradle / Ivy
package db.sql.api.cmd.basic;
import db.sql.api.Cmd;
import db.sql.api.SqlBuilderContext;
import db.sql.api.tookit.CmdUtils;
import java.util.Objects;
public class SQLCmdAll implements Cmd {
public final static SQLCmdAll INSTANCE = new SQLCmdAll();
private IDataset dataset;
public SQLCmdAll() {
}
public SQLCmdAll(IDataset dataset) {
this.dataset = dataset;
}
@Override
public StringBuilder sql(Cmd module, Cmd parent, SqlBuilderContext context, StringBuilder sqlBuilder) {
if (Objects.isNull(dataset)) {
sqlBuilder.append(" * ");
} else {
String name;
if (dataset instanceof ITable) {
ITable table = (ITable) dataset;
name = Objects.isNull(table.getAlias()) ? table.getName() : table.getAlias();
} else {
name = dataset.getAlias();
}
sqlBuilder.append(name).append(".* ");
}
return sqlBuilder;
}
@Override
public boolean contain(Cmd cmd) {
return CmdUtils.contain(cmd, dataset);
}
}