| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You under the Apache License, Version 2.0 |
| * (the "License"); you may not use this file except in compliance with |
| * the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package org.apache.carbondata.core.scan.expression.conditional; |
| |
| import org.apache.carbondata.core.metadata.datatype.DataType; |
| import org.apache.carbondata.core.metadata.datatype.DataTypes; |
| import org.apache.carbondata.core.scan.expression.Expression; |
| import org.apache.carbondata.core.scan.expression.ExpressionResult; |
| import org.apache.carbondata.core.scan.expression.exception.FilterIllegalMemberException; |
| import org.apache.carbondata.core.scan.expression.exception.FilterUnsupportedException; |
| import org.apache.carbondata.core.scan.filter.intf.ExpressionType; |
| import org.apache.carbondata.core.scan.filter.intf.RowIntf; |
| |
| |
| public class GreaterThanExpression extends BinaryConditionalExpression { |
| private static final long serialVersionUID = -5319109756575539219L; |
| |
| public GreaterThanExpression(Expression left, Expression right) { |
| super(left, right); |
| } |
| |
| @Override public ExpressionResult evaluate(RowIntf value) |
| throws FilterUnsupportedException, FilterIllegalMemberException { |
| ExpressionResult exprLeftRes = left.evaluate(value); |
| ExpressionResult exprRightRes = right.evaluate(value); |
| ExpressionResult val1 = exprLeftRes; |
| if (exprLeftRes.isNull() || exprRightRes.isNull()) { |
| exprLeftRes.set(DataTypes.BOOLEAN, false); |
| return exprLeftRes; |
| } |
| if (exprLeftRes.getDataType() != exprRightRes.getDataType()) { |
| if (exprLeftRes.getDataType().getPrecedenceOrder() < exprRightRes.getDataType() |
| .getPrecedenceOrder()) { |
| val1 = exprRightRes; |
| } |
| |
| } |
| boolean result = false; |
| DataType dataType = val1.getDataType(); |
| if (dataType == DataTypes.BOOLEAN) { |
| result = exprLeftRes.getBoolean().compareTo(exprRightRes.getBoolean()) > 0; |
| } else if (dataType == DataTypes.STRING) { |
| result = exprLeftRes.getString().compareTo(exprRightRes.getString()) > 0; |
| } else if (dataType == DataTypes.DOUBLE) { |
| result = exprLeftRes.getDouble() > (exprRightRes.getDouble()); |
| } else if (dataType == DataTypes.SHORT) { |
| result = exprLeftRes.getShort() > (exprRightRes.getShort()); |
| } else if (dataType == DataTypes.INT) { |
| result = exprLeftRes.getInt() > (exprRightRes.getInt()); |
| } else if (dataType == DataTypes.DATE || dataType == DataTypes.TIMESTAMP) { |
| result = exprLeftRes.getTime() > (exprRightRes.getTime()); |
| } else if (dataType == DataTypes.LONG) { |
| result = exprLeftRes.getLong() > (exprRightRes.getLong()); |
| } else if (dataType == DataTypes.DECIMAL) { |
| result = exprLeftRes.getDecimal().compareTo(exprRightRes.getDecimal()) > 0; |
| } else { |
| throw new FilterUnsupportedException( |
| "DataType: " + val1.getDataType() + " not supported for the filter expression"); |
| } |
| val1.set(DataTypes.BOOLEAN, result); |
| return val1; |
| } |
| |
| @Override public ExpressionType getFilterExpressionType() { |
| return ExpressionType.GREATERTHAN; |
| } |
| |
| @Override public String getString() { |
| return "GreaterThan(" + left.getString() + ',' + right.getString() + ')'; |
| } |
| |
| } |