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220 lines (178 loc) · 8.24 KB
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package org.javawebstack.orm.query;
import org.javawebstack.orm.Model;
import org.javawebstack.orm.Repo;
import org.javawebstack.orm.TableInfo;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
import java.util.function.Function;
public class QueryGroup<T extends Model> implements QueryElement {
private final List<QueryElement> queryElements = new ArrayList<>();
public QueryGroup(QueryElement... queryElements) {
this.queryElements.addAll(Arrays.asList(queryElements));
}
public List<QueryElement> getQueryElements() {
return queryElements;
}
public QueryGroup<T> and(Function<QueryGroup<T>, QueryGroup<T>> group) {
QueryGroup<T> innerGroup = group.apply(new QueryGroup<>());
if (queryElements.size() > 0)
queryElements.add(QueryConjunction.AND);
queryElements.add(innerGroup);
return this;
}
public QueryGroup<T> or(Function<QueryGroup<T>, QueryGroup<T>> group) {
QueryGroup<T> innerGroup = group.apply(new QueryGroup<>());
if (queryElements.size() > 0)
queryElements.add(QueryConjunction.OR);
queryElements.add(innerGroup);
return this;
}
public QueryGroup<T> where(Object left, String condition, Object right) {
if(condition.equalsIgnoreCase("=") && right == null)
return whereNull(left);
if(condition.equalsIgnoreCase("!=") && right == null)
return whereNotNull(left);
if (queryElements.size() > 0)
queryElements.add(QueryConjunction.AND);
queryElements.add(new QueryCondition(left instanceof String ? new QueryColumn((String) left) : left, condition, right));
return this;
}
public QueryGroup<T> where(Class<? extends Model> leftTable, String left, String operator, Class<? extends Model> rightTable, String right) {
if (rightTable != null)
right = Repo.get(rightTable).getInfo().getTableName() + "." + Repo.get(rightTable).getInfo().getColumnName(right);
return where(leftTable, left, operator, new QueryColumn(right));
}
public QueryGroup<T> where(Class<? extends Model> leftTable, String left, String operator, Object right) {
if (leftTable != null)
left = Repo.get(leftTable).getInfo().getTableName() + "." + Repo.get(leftTable).getInfo().getColumnName(left);
return where(left, operator, right);
}
public QueryGroup<T> whereMorph(String name, Class<? extends Model> type) {
return where(name + "Type", Repo.get(type).getInfo().getMorphType());
}
public QueryGroup<T> whereMorph(String name, Class<? extends Model> type, Object id) {
return whereMorph(name, type).where(name + "Id", id);
}
public QueryGroup<T> whereMorph(String name, Model entity) {
return whereMorph(name, entity.getClass(), Repo.get(entity.getClass()).getId(entity));
}
public QueryGroup<T> where(Object left, Object right) {
return where(left, "=", right);
}
public QueryGroup<T> isNull(Object left) {
return where(left, "IS NULL", null);
}
public QueryGroup<T> notNull(Object left) {
return where(left, "IS NOT NULL", null);
}
public QueryGroup<T> whereNull(Object left) {
return where(left, "IS NULL", null);
}
public QueryGroup<T> whereNotNull(Object left) {
return where(left, "IS NOT NULL", null);
}
public QueryGroup<T> lessThan(Object left, Object right) {
return where(left, "<", right);
}
public QueryGroup<T> greaterThan(Object left, Object right) {
return where(left, ">", right);
}
public QueryGroup<T> orWhere(Object left, String condition, Object right) {
if(condition.equalsIgnoreCase("=") && right == null)
return orIsNull(left);
if(condition.equalsIgnoreCase("!=") && right == null)
return orNotNull(left);
if (queryElements.size() > 0)
queryElements.add(QueryConjunction.OR);
queryElements.add(new QueryCondition(left instanceof String ? new QueryColumn((String) left) : left, condition, right));
return this;
}
public QueryGroup<T> orWhere(Object left, Object right) {
return orWhere(left, "=", right);
}
public QueryGroup<T> orWhere(Class<? extends Model> leftTable, String left, String operator, Class<? extends Model> rightTable, String right) {
if (rightTable != null)
right = Repo.get(rightTable).getInfo().getTableName() + "." + Repo.get(rightTable).getInfo().getColumnName(right);
return orWhere(leftTable, left, operator, new QueryColumn(right));
}
public QueryGroup<T> orWhere(Class<? extends Model> leftTable, String left, String operator, Object right) {
if (leftTable != null)
left = Repo.get(leftTable).getInfo().getTableName() + "." + Repo.get(leftTable).getInfo().getColumnName(left);
return orWhere(left, operator, right);
}
public QueryGroup<T> orWhereMorph(String name, Class<? extends Model> type) {
return orWhere(name + "Type", Repo.get(type).getInfo().getMorphType());
}
public QueryGroup<T> orWhereMorph(String name, Class<? extends Model> type, Object id) {
return orWhereMorph(name, type).where(name + "Id", id);
}
public QueryGroup<T> orWhereMorph(String name, Model entity) {
return orWhereMorph(name, entity.getClass(), Repo.get(entity.getClass()).getId(entity));
}
public QueryGroup<T> orIsNull(Object left) {
return orWhere(left, "IS NULL", null);
}
public QueryGroup<T> orNotNull(Object left) {
return orWhere(left, "IS NOT NULL", null);
}
public QueryGroup<T> orLessThan(Object left, Object right) {
return orWhere(left, "<", right);
}
public QueryGroup<T> orGreaterThan(Object left, Object right) {
return orWhere(left, ">", right);
}
public <M extends Model> QueryGroup<T> whereExists(Class<M> model, Function<Query<M>, Query<M>> consumer) {
if (queryElements.size() > 0)
queryElements.add(QueryConjunction.AND);
Query<M> query = consumer.apply(new Query<>(model).limit(1));
queryElements.add(new QueryExists<>(query, false));
return this;
}
public <M extends Model> QueryGroup<T> orWhereExists(Class<M> model, Function<Query<M>, Query<M>> consumer) {
if (queryElements.size() > 0)
queryElements.add(QueryConjunction.OR);
Query<M> query = consumer.apply(new Query<>(model).limit(1));
queryElements.add(new QueryExists<>(query, false));
return this;
}
public <M extends Model> QueryGroup<T> whereNotExists(Class<M> model, Function<Query<M>, Query<M>> consumer) {
if (queryElements.size() > 0)
queryElements.add(QueryConjunction.AND);
Query<M> query = consumer.apply(new Query<>(model).limit(1));
queryElements.add(new QueryExists<>(query, true));
return this;
}
public <M extends Model> QueryGroup<T> orWhereNotExists(Class<M> model, Function<Query<M>, Query<M>> consumer) {
if (queryElements.size() > 0)
queryElements.add(QueryConjunction.OR);
Query<M> query = consumer.apply(new Query<>(model).limit(1));
queryElements.add(new QueryExists<>(query, true));
return this;
}
public QueryGroup<T> whereIn(Object left, Object... values) {
return where(left, "IN", values);
}
public QueryGroup<T> whereNotIn(Object left, Object... values) {
return where(left, "NOT IN", values);
}
public QueryGroup<T> orWhereIn(Object left, Object... values) {
return orWhere(left, "IN", values);
}
public QueryGroup<T> orWhereNotIn(Object left, Object... values) {
return orWhere(left, "NOT IN", values);
}
public QueryString getQueryString(TableInfo info) {
StringBuilder sb = new StringBuilder("(");
List<Object> parameters = new ArrayList<>();
for (QueryElement element : queryElements) {
if (sb.length() > 1)
sb.append(' ');
QueryString s = element.getQueryString(info);
sb.append(s.getQuery());
parameters.addAll(s.getParameters());
}
sb.append(')');
return new QueryString(sb.toString(), parameters);
}
}