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// Copyright Vespa.ai. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
package com.yahoo.search.yql;
import com.google.common.base.Predicate;
/**
* Operators on expressions.
*/
enum ExpressionOperator implements Operator {
AND(TypeCheckers.EXPRS),
OR(TypeCheckers.EXPRS),
EQ(ExpressionOperator.class, ExpressionOperator.class),
NEQ(ExpressionOperator.class, ExpressionOperator.class),
LT(ExpressionOperator.class, ExpressionOperator.class),
GT(ExpressionOperator.class, ExpressionOperator.class),
LTEQ(ExpressionOperator.class, ExpressionOperator.class),
GTEQ(ExpressionOperator.class, ExpressionOperator.class),
IN(ExpressionOperator.class, ExpressionOperator.class),
IN_QUERY(ExpressionOperator.class, SequenceOperator.class),
NOT_IN(ExpressionOperator.class, ExpressionOperator.class),
NOT_IN_QUERY(ExpressionOperator.class, SequenceOperator.class),
LIKE(ExpressionOperator.class, ExpressionOperator.class),
NOT_LIKE(ExpressionOperator.class, ExpressionOperator.class),
IS_NULL(ExpressionOperator.class),
IS_NOT_NULL(ExpressionOperator.class),
MATCHES(ExpressionOperator.class, ExpressionOperator.class),
NOT_MATCHES(ExpressionOperator.class, ExpressionOperator.class),
CONTAINS(ExpressionOperator.class, ExpressionOperator.class),
ADD(ExpressionOperator.class, ExpressionOperator.class),
SUB(ExpressionOperator.class, ExpressionOperator.class),
MULT(ExpressionOperator.class, ExpressionOperator.class),
DIV(ExpressionOperator.class, ExpressionOperator.class),
MOD(ExpressionOperator.class, ExpressionOperator.class),
NEGATE(ExpressionOperator.class),
NOT(ExpressionOperator.class),
MAP(TypeCheckers.LIST_OF_STRING, TypeCheckers.EXPRS),
ARRAY(TypeCheckers.EXPRS),
INDEX(ExpressionOperator.class, ExpressionOperator.class),
PROPREF(ExpressionOperator.class, String.class),
CALL(TypeCheckers.LIST_OF_STRING, TypeCheckers.EXPRS),
VARREF(String.class),
LITERAL(TypeCheckers.LITERAL_TYPES),
READ_RECORD(String.class),
READ_FIELD(String.class, String.class),
VESPA_GROUPING(String.class),
NULL();
private final ArgumentsTypeChecker checker;
ExpressionOperator(Object... types) {
checker = TypeCheckers.make(this, types);
}
@Override
public void checkArguments(Object... args) {
checker.check(args);
}
public static Predicate<OperatorNode<? extends Operator>> IS = new Predicate<OperatorNode<? extends Operator>>() {
@Override
public boolean apply(OperatorNode<? extends Operator> input) {
return input.getOperator() instanceof ExpressionOperator;
}
};
}
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