76 lines
1.7 KiB
Java
76 lines
1.7 KiB
Java
package expression;
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import java.math.BigDecimal;
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import java.math.BigInteger;
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import java.util.List;
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/**
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* @author Doschennikov Nikita (me@fymio.us)
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*/
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public class Floor extends AbstractExpression {
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private final AbstractExpression operand;
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public Floor(AbstractExpression operand) {
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this.operand = operand;
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}
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private static int floorInt(int n) {
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return Math.floorDiv(n, 1000) * 1000;
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}
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@Override
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public int evaluate(int x) {
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return floorInt(operand.evaluate(x));
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}
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@Override
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public int evaluate(int x, int y, int z) {
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return floorInt(operand.evaluate(x, y, z));
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}
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@Override
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public int evaluate(List<Integer> vars) {
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return floorInt(operand.evaluate(vars));
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}
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@Override
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public BigInteger evaluateBi(List<BigInteger> vars) {
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throw new UnsupportedOperationException(
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"floor not supported for BigInteger"
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);
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}
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@Override
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public BigDecimal evaluateBd(List<BigDecimal> vars) {
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throw new UnsupportedOperationException(
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"floor not supported for BigDecimal"
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);
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}
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@Override
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public String toString() {
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return "floor(" + operand + ")";
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}
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@Override
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public String toMiniString() {
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if (operand instanceof AbstractBinaryOperation) {
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return "floor(" + operand.toMiniString() + ")";
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}
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return "floor " + operand.toMiniString();
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}
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@Override
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public boolean equals(Object obj) {
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if (this == obj) return true;
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if (!(obj instanceof Floor)) return false;
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return operand.equals(((Floor) obj).operand);
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}
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@Override
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public int hashCode() {
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return operand.hashCode() ^ 0x464C4F52;
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}
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}
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