package com.avaje.ebeaninternal.server.expression;
import com.avaje.ebean.LikeType;
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 LikeExpression extends AbstractExpression {
private static final long serialVersionUID = -5398151809111172380L;
private final String val;
private final boolean caseInsensitive;
private final LikeType type;
LikeExpression(String propertyName, String value, boolean caseInsensitive, LikeType type) {
super(propertyName);
this.caseInsensitive = caseInsensitive;
this.type = type;
this.val = value;
}
public void addBindValues(SpiExpressionRequest request) {
ElPropertyValue prop = getElProp(request);
if (prop != null && prop.isDbEncrypted()) {
// bind the key as well as the value
String encryptKey = prop.getBeanProperty().getEncryptKey().getStringValue();
request.addBindValue(encryptKey);
}
String bindValue = getValue(val, caseInsensitive, type);
request.addBindValue(bindValue);
}
public void addSql(SpiExpressionRequest request) {
String propertyName = getPropertyName();
String pname = propertyName;
ElPropertyValue prop = getElProp(request);
if (prop != null && prop.isDbEncrypted()) {
pname = prop.getBeanProperty().getDecryptProperty(propertyName);
}
if (caseInsensitive) {
request.append("lower(").append(pname).append(")");
} else {
request.append(pname);
}
if (type.equals(LikeType.EQUAL_TO)) {
request.append(" = ? ");
} else {
// append db platform like clause
request.appendLike();
}
}
/**
* Based on caseInsensitive and the property name.
*/
public void queryAutoFetchHash(HashQueryPlanBuilder builder) {
builder.add(LikeExpression.class).add(caseInsensitive).add(propName);
builder.bind(1);
}
public void queryPlanHash(BeanQueryRequest<?> request, HashQueryPlanBuilder builder) {
queryAutoFetchHash(builder);
}
public int queryBindHash() {
return val.hashCode();
}
private static String getValue(String value, boolean caseInsensitive, LikeType type) {
if (caseInsensitive) {
value = value.toLowerCase();
}
switch (type) {
case RAW:
return value;
case STARTS_WITH:
return value + "%";
case ENDS_WITH:
return "%" + value;
case CONTAINS:
return "%" + value + "%";
case EQUAL_TO:
return value;
default:
throw new RuntimeException("LikeType " + type + " missed?");
}
}
}