SequenceMatch.java

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package org.apache.doris.nereids.trees.expressions.functions.agg;

import org.apache.doris.catalog.FunctionSignature;
import org.apache.doris.nereids.trees.expressions.Expression;
import org.apache.doris.nereids.trees.expressions.functions.ExplicitlyCastableSignature;
import org.apache.doris.nereids.trees.expressions.visitor.ExpressionVisitor;
import org.apache.doris.nereids.types.BooleanType;
import org.apache.doris.nereids.types.DateTimeType;
import org.apache.doris.nereids.types.DateTimeV2Type;
import org.apache.doris.nereids.types.DateV2Type;
import org.apache.doris.nereids.types.StringType;
import org.apache.doris.nereids.util.ExpressionUtils;

import com.google.common.base.Preconditions;
import com.google.common.collect.ImmutableList;

import java.util.List;

/**
 * AggregateFunction 'sequence_match'. This class is generated by GenerateFunction.
 */
public class SequenceMatch extends NullableAggregateFunction
        implements ExplicitlyCastableSignature, SequenceFunction {

    public static final List<FunctionSignature> SIGNATURES = ImmutableList.of(
            FunctionSignature.ret(BooleanType.INSTANCE)
                    .varArgs(StringType.INSTANCE, DateV2Type.INSTANCE, BooleanType.INSTANCE),
            FunctionSignature.ret(BooleanType.INSTANCE)
                    .varArgs(StringType.INSTANCE, DateTimeType.INSTANCE, BooleanType.INSTANCE),
            FunctionSignature.ret(BooleanType.INSTANCE)
                    .varArgs(StringType.INSTANCE, DateTimeV2Type.SYSTEM_DEFAULT, BooleanType.INSTANCE)
    );

    /**
     * constructor with 3 or more arguments.
     */
    public SequenceMatch(Expression arg0, Expression arg1, Expression arg2, Expression... varArgs) {
        this(false, arg0, arg1, arg2, varArgs);
    }

    /**
     * constructor with 3 or more arguments.
     */
    public SequenceMatch(boolean distinct, Expression arg0, Expression arg1, Expression arg2, Expression... varArgs) {
        this(distinct, false, arg0, arg1, arg2, varArgs);
    }

    public SequenceMatch(boolean distinct, boolean alwaysNullable, Expression arg0, Expression arg1,
            Expression arg2, Expression... varArgs) {
        super("sequence_match", distinct, alwaysNullable, ExpressionUtils.mergeArguments(arg0, arg1, arg2, varArgs));
    }

    /**
     * withDistinctAndChildren.
     */
    @Override
    public SequenceMatch withDistinctAndChildren(boolean distinct, List<Expression> children) {
        Preconditions.checkArgument(children.size() >= 3);
        return new SequenceMatch(distinct, alwaysNullable, children.get(0), children.get(1),
                children.get(2), children.subList(3, children.size()).toArray(new Expression[0]));
    }

    @Override
    public SequenceMatch withAlwaysNullable(boolean alwaysNullable) {
        return new SequenceMatch(distinct, alwaysNullable, children.get(0), children.get(1),
                children.get(2), children.subList(3, children.size()).toArray(new Expression[0]));
    }

    @Override
    public <R, C> R accept(ExpressionVisitor<R, C> visitor, C context) {
        return visitor.visitSequenceMatch(this, context);
    }

    @Override
    public List<FunctionSignature> getSignatures() {
        return SIGNATURES;
    }
}