package com.avaje.ebeaninternal.server.expression;
import java.util.Collection;
import com.avaje.ebean.bean.EntityBean;
import com.avaje.ebean.event.BeanQueryRequest;
import com.avaje.ebeaninternal.api.HashQueryPlanBuilder;
import com.avaje.ebeaninternal.api.SpiExpressionRequest;
import com.avaje.ebeaninternal.server.el.ElPropertyValue;
class InExpression extends AbstractExpression {
private static final long serialVersionUID = 3150665801693551260L;
private final Object[] values;
InExpression(String propertyName, Collection<?> coll) {
super(propertyName);
values = coll.toArray(new Object[coll.size()]);
}
InExpression(String propertyName, Object[] array) {
super(propertyName);
this.values = array;
}
public void addBindValues(SpiExpressionRequest request) {
ElPropertyValue prop = getElProp(request);
if (prop != null && !prop.isAssocId()) {
prop = null;
}
for (int i = 0; i < values.length; i++) {
if (prop == null) {
request.addBindValue(values[i]);
} else {
// extract the id values from the bean
Object[] ids = prop.getAssocOneIdValues((EntityBean)values[i]);
if (ids != null) {
for (int j = 0; j < ids.length; j++) {
request.addBindValue(ids[j]);
}
}
}
}
}
public void addSql(SpiExpressionRequest request) {
if (values.length == 0) {
// 'no match' for in empty collection
request.append("1=0");
return;
}
String propertyName = getPropertyName();
ElPropertyValue prop = getElProp(request);
if (prop != null && !prop.isAssocId()) {
prop = null;
}
if (prop != null) {
request.append(prop.getAssocIdInExpr(propertyName));
String inClause = prop.getAssocIdInValueExpr(values.length);
request.append(inClause);
} else {
request.append(propertyName);
request.append(" in (?");
for (int i = 1; i < values.length; i++) {
request.append(", ").append("?");
}
request.append(" ) ");
}
}
/**
* Based on the number of values in the in clause.
*/
public void queryAutoFetchHash(HashQueryPlanBuilder builder) {
builder.add(InExpression.class).add(propName).add(values.length);
builder.bind(values.length);
}
public void queryPlanHash(BeanQueryRequest<?> request, HashQueryPlanBuilder builder) {
queryAutoFetchHash(builder);
}
public int queryBindHash() {
int hc = 31;
for (int i = 0; i < values.length; i++) {
hc = 31 * hc + values[i].hashCode();
}
return hc;
}
}