use of com.orientechnologies.orient.core.sql.operator.OQueryOperatorNotEquals in project orientdb by orientechnologies.
the class OCommandExecutorSQLResultsetAbstract method optimizeBranch.
protected void optimizeBranch(final OSQLFilterCondition iParentCondition, OSQLFilterCondition iCondition) {
if (iCondition == null)
return;
Object left = iCondition.getLeft();
if (left instanceof OSQLFilterCondition) {
// ANALYSE LEFT RECURSIVELY
optimizeBranch(iCondition, (OSQLFilterCondition) left);
} else if (left instanceof OSQLFunctionRuntime) {
left = optimizeFunction((OSQLFunctionRuntime) left);
iCondition.setLeft(left);
}
Object right = iCondition.getRight();
if (right instanceof OSQLFilterCondition) {
// ANALYSE RIGHT RECURSIVELY
optimizeBranch(iCondition, (OSQLFilterCondition) right);
} else if (right instanceof OSQLFunctionRuntime) {
right = optimizeFunction((OSQLFunctionRuntime) right);
iCondition.setRight(right);
}
final OQueryOperator oper = iCondition.getOperator();
Object result = null;
if (left instanceof OSQLFilterItemField && right instanceof OSQLFilterItemField) {
if (((OSQLFilterItemField) left).getRoot().equals(((OSQLFilterItemField) right).getRoot())) {
if (oper instanceof OQueryOperatorEquals)
result = Boolean.TRUE;
else if ((oper instanceof OQueryOperatorNotEquals) || (oper instanceof OQueryOperatorNotEquals2))
result = Boolean.FALSE;
}
}
if (result != null) {
if (iParentCondition != null)
if (iCondition == iParentCondition.getLeft())
// REPLACE LEFT
iCondition.setLeft(result);
else
// REPLACE RIGHT
iCondition.setRight(result);
else {
// REPLACE ROOT CONDITION
if (result instanceof Boolean && ((Boolean) result))
compiledFilter.setRootCondition(null);
}
}
}
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