package com.avaje.ebeaninternal.server.deploy;
import java.util.Set;
import com.avaje.ebeaninternal.server.el.ElPropertyDeploy;
/**
* For updates converts logical property names to database columns and bean type to base table.
*/
public final class DeployUpdateParser extends DeployParser {
private final BeanDescriptor<?> beanDescriptor;
public DeployUpdateParser(BeanDescriptor<?> beanDescriptor) {
this.beanDescriptor = beanDescriptor;
}
/**
* Return null as not used for updates.
*/
@Override
public Set<String> getIncludes() {
return null;
}
public String convertWord() {
String dbWord = getDeployWord(word);
if (dbWord != null) {
return dbWord;
}
// maybe tableAlias.propertyName
return convertSubword(0, word, null);
}
private String convertSubword(int start, String currentWord, StringBuilder localBuffer) {
int dotPos = currentWord.indexOf('.', start);
if (start == 0 && dotPos == -1){
return currentWord;
}
if (start == 0){
localBuffer = new StringBuilder();
}
if (dotPos == -1){
// no match...
localBuffer.append(currentWord.substring(start));
return localBuffer.toString();
}
// append up to the dot
localBuffer.append(currentWord.substring(start, dotPos+1));
if (dotPos == currentWord.length()-1){
// ends with a "." ???
return localBuffer.toString();
}
// get the remainder after the dot
start = dotPos+1;
String remainder = currentWord.substring(start, currentWord.length());
//String dbWord = deployMap.get(remainder.toLowerCase());
String dbWord = getDeployWord(remainder);
if (dbWord != null){
// we have found a match for the remainder
localBuffer.append(dbWord);
return localBuffer.toString();
} else {
//
return convertSubword(start, currentWord, localBuffer);
}
}
public String getDeployWord(String expression) {
if (expression.equalsIgnoreCase(beanDescriptor.getName())){
return beanDescriptor.getBaseTable();
}
ElPropertyDeploy elProp = beanDescriptor.getElPropertyDeploy(expression);
if (elProp != null){
return elProp.getDbColumn();
} else {
return null;
}
}
}