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120 lines (89 loc) · 3.26 KB
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package MyMiniSQL.Analyzer;
import java.util.ArrayList;
import java.util.List;
public class SelectInfo {
public void setAttributesToSelect(List<String> attributesToSelect) {
this.attributesToSelect = attributesToSelect;
}
public void setTablesToSelectFrom(List<String> tablesToSelectFrom) {
this.tablesToSelectFrom = tablesToSelectFrom;
}
private List<String> attributesToSelect = new ArrayList<>();
private List<String> tablesToSelectFrom = new ArrayList<>();
private SelectInfo recursiveSelect = null;
private ConditionExpression conditionExpression = null;
//sort on primary key if null
private String orderedAttributeName = null;
//sort on ascending or descending
private boolean isAscending = true;
public String toString(){
StringBuilder builder = new StringBuilder();
builder.append("Select: \n");
builder.append("AttributesToSelect: ");
if(attributesToSelect != null) {
builder.append(attributesToSelect.toString());
}else{
builder.append("*");
}
builder.append("\n");
builder.append("Condition: ");
if(conditionExpression != null){
builder.append(conditionExpression.toString());
}else {
builder.append("no condition");
}
builder.append("\n");
builder.append("Order by: ");
if(isExplicitOrdered()){
builder.append(orderedAttributeName).append("\n");
}else {
builder.append("primary key").append("\n");
}
builder.append("Is Ascending: ").append(isAscending).append("\n");
if(isRecursiveSelect()){
builder.append("========== Recursive Select ==========").append("\n").
append(recursiveSelect.toString()).append("\n").
append("=============== Rec End ==============\n");
}else {
builder.append("TablesToSelectFrom: ").append(tablesToSelectFrom.toString()).append("\n");
}
return builder.toString();
}
SelectInfo(){}
public void addAttributeToSelect(String attr){
attributesToSelect.add(attr);
}
public List<String> getAttributesToSelect() {
return attributesToSelect;
}
public List<String> getTablesToSelectFrom() {
return tablesToSelectFrom;
}
public boolean isRecursiveSelect() {
return recursiveSelect != null;
}
public boolean isExplicitOrdered(){
return orderedAttributeName != null;
}
public ConditionExpression getConditionExpression() {
return conditionExpression;
}
public String getOrderedAttributeName() {
return orderedAttributeName;
}
public boolean isAscending() {
return isAscending;
}
public void setRecursiveSelect(SelectInfo recursiveSelect) {
this.recursiveSelect= recursiveSelect;
}
public void setAscending(boolean ascending) {
isAscending = ascending;
}
public void setConditionExpression(ConditionExpression conditionExpression) {
this.conditionExpression = conditionExpression;
}
public void setOrderedAttributeName(String orderedAttributeName) {
this.orderedAttributeName = orderedAttributeName;
}
}