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Java Expression.BinaryExpression方法代码示例

本文整理汇总了Java中org.apache.pig.Expression.BinaryExpression方法的典型用法代码示例。如果您正苦于以下问题：Java Expression.BinaryExpression方法的具体用法？Java Expression.BinaryExpression怎么用？Java Expression.BinaryExpression使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类org.apache.pig.Expression的用法示例。


在下文中一共展示了Expression.BinaryExpression方法的9个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Java代码示例。

示例1: partitionFilterToWhereClauseString

import org.apache.pig.Expression; //导入方法依赖的package包/类
/**
 * Return cql where clauses for the corresponding partition filter. Make sure the data format matches
 * Only support the following Pig data types: int, long, float, double, boolean and chararray
 * */
private String partitionFilterToWhereClauseString(Expression expression) throws IOException
{
    Expression.BinaryExpression be = (Expression.BinaryExpression) expression;
    OpType op = expression.getOpType();
    String opString = op.toString();
    switch (op)
    {
        case OP_EQ:
            opString = " = ";
        case OP_GE:
        case OP_GT:
        case OP_LE:
        case OP_LT:
            String name = be.getLhs().toString();
            String value = be.getRhs().toString();
            return String.format("%s %s %s", name, opString, value);
        case OP_AND:
            return String.format("%s AND %s", partitionFilterToWhereClauseString(be.getLhs()), partitionFilterToWhereClauseString(be.getRhs()));
        default:
            throw new IOException("Unsupported expression type: " + opString);
    }
}
开发者ID:vcostet，项目名称:cassandra-kmean，代码行数:27，代码来源:CqlNativeStorage.java

示例2: partitionFilterToWhereClauseString

import org.apache.pig.Expression; //导入方法依赖的package包/类
/** 
 * Return cql where clauses for the corresponding partition filter. Make sure the data format matches 
 * Only support the following Pig data types: int, long, float, double, boolean and chararray
 * */
private String partitionFilterToWhereClauseString(Expression expression) throws IOException
{
    Expression.BinaryExpression be = (Expression.BinaryExpression) expression;
    OpType op = expression.getOpType();
    String opString = op.toString();
    switch (op)
    {
        case OP_EQ:
            opString = " = ";
        case OP_GE:
        case OP_GT:
        case OP_LE:
        case OP_LT:
            String name = be.getLhs().toString();
            String value = be.getRhs().toString();
            return String.format("%s %s %s", name, opString, value);
        case OP_AND:
            return String.format("%s AND %s", partitionFilterToWhereClauseString(be.getLhs()), partitionFilterToWhereClauseString(be.getRhs()));
        default:
            throw new IOException("Unsupported expression type: " + opString);
    }
}
开发者ID:pgaref，项目名称:ACaZoo，代码行数:27，代码来源:CqlStorage.java

示例3: partitionFilterToWhereClauseString

import org.apache.pig.Expression; //导入方法依赖的package包/类
/** 
 * Return cql where clauses for the corresponding partition filter. Make sure the data format matches 
 * Only support the following Pig data types: int, long, float, double, boolean and chararray
 * */
private String partitionFilterToWhereClauseString(Expression expression)
{
    Expression.BinaryExpression be = (Expression.BinaryExpression) expression;
    String name = be.getLhs().toString();
    String value = be.getRhs().toString();
    OpType op = expression.getOpType();
    String opString = op.name();
    switch (op)
    {
        case OP_EQ:
            opString = " = ";
        case OP_GE:
        case OP_GT:
        case OP_LE:
        case OP_LT:
            return String.format("%s %s %s", name, opString, value);
        case OP_AND:
            return String.format("%s AND %s", partitionFilterToWhereClauseString(be.getLhs()), partitionFilterToWhereClauseString(be.getRhs()));
        default:
            throw new RuntimeException("Unsupported expression type: " + opString);
    }
}
开发者ID:dprguiuc，项目名称:Cassandra-Wasef，代码行数:27，代码来源:CqlStorage.java

示例4: partitionFilterToWhereClauseString

import org.apache.pig.Expression; //导入方法依赖的package包/类
/** 
 * Return cql where clauses for the corresponding partition filter. Make sure the data format matches 
 * Only support the following Pig data types: int, long, float, double, boolean and chararray
 * */
private String partitionFilterToWhereClauseString(Expression expression) throws IOException
{
    Expression.BinaryExpression be = (Expression.BinaryExpression) expression;
    String name = be.getLhs().toString();
    String value = be.getRhs().toString();
    OpType op = expression.getOpType();
    String opString = op.toString();
    switch (op)
    {
        case OP_EQ:
            opString = " = ";
        case OP_GE:
        case OP_GT:
        case OP_LE:
        case OP_LT:
            return String.format("%s %s %s", name, opString, value);
        case OP_AND:
            return String.format("%s AND %s", partitionFilterToWhereClauseString(be.getLhs()), partitionFilterToWhereClauseString(be.getRhs()));
        default:
            throw new IOException("Unsupported expression type: " + opString);
    }
}
开发者ID:wso2，项目名称:wso2-cassandra，代码行数:27，代码来源:CqlStorage.java

示例5: filterToIndexExpressions

import org.apache.pig.Expression; //导入方法依赖的package包/类
/** get a list of Cassandra IndexExpression from Pig expression */
private List<IndexExpression> filterToIndexExpressions(Expression expression) throws IOException
{
    List<IndexExpression> indexExpressions = new ArrayList<IndexExpression>();
    Expression.BinaryExpression be = (Expression.BinaryExpression)expression;
    ByteBuffer name = ByteBuffer.wrap(be.getLhs().toString().getBytes());
    ByteBuffer value = ByteBuffer.wrap(be.getRhs().toString().getBytes());
    switch (expression.getOpType())
    {
        case OP_EQ:
            indexExpressions.add(new IndexExpression(name, IndexOperator.EQ, value));
            break;
        case OP_GE:
            indexExpressions.add(new IndexExpression(name, IndexOperator.GTE, value));
            break;
        case OP_GT:
            indexExpressions.add(new IndexExpression(name, IndexOperator.GT, value));
            break;
        case OP_LE:
            indexExpressions.add(new IndexExpression(name, IndexOperator.LTE, value));
            break;
        case OP_LT:
            indexExpressions.add(new IndexExpression(name, IndexOperator.LT, value));
            break;
        case OP_AND:
            indexExpressions.addAll(filterToIndexExpressions(be.getLhs()));
            indexExpressions.addAll(filterToIndexExpressions(be.getRhs()));
            break;
        default:
            throw new IOException("Unsupported expression type: " + expression.getOpType().name());
    }
    return indexExpressions;
}
开发者ID:vcostet，项目名称:cassandra-kmean，代码行数:34，代码来源:CassandraStorage.java

示例6: filterToIndexExpressions

import org.apache.pig.Expression; //导入方法依赖的package包/类
/** get a list of Cassandra IndexExpression from Pig expression */
private List<IndexExpression> filterToIndexExpressions(Expression expression)
{
    List<IndexExpression> indexExpressions = new ArrayList<IndexExpression>();
    Expression.BinaryExpression be = (Expression.BinaryExpression)expression;
    ByteBuffer name = ByteBuffer.wrap(be.getLhs().toString().getBytes());
    ByteBuffer value = ByteBuffer.wrap(be.getRhs().toString().getBytes());
    switch (expression.getOpType())
    {
        case OP_EQ:
            indexExpressions.add(new IndexExpression(name, IndexOperator.EQ, value));
            break;
        case OP_GE:
            indexExpressions.add(new IndexExpression(name, IndexOperator.GTE, value));
            break;
        case OP_GT:
            indexExpressions.add(new IndexExpression(name, IndexOperator.GT, value));
            break;
        case OP_LE:
            indexExpressions.add(new IndexExpression(name, IndexOperator.LTE, value));
            break;
        case OP_LT:
            indexExpressions.add(new IndexExpression(name, IndexOperator.LT, value));
            break;
        case OP_AND:
            indexExpressions.addAll(filterToIndexExpressions(be.getLhs()));
            indexExpressions.addAll(filterToIndexExpressions(be.getRhs()));
            break;
        default:
            throw new RuntimeException("Unsupported expression type: " + expression.getOpType().name());
    }
    return indexExpressions;
}
开发者ID:dprguiuc，项目名称:Cassandra-Wasef，代码行数:34，代码来源:CassandraStorage.java

示例7: getPColCondition

import org.apache.pig.Expression; //导入方法依赖的package包/类
/**
 * @return the condition on partition columns extracted from filter
 */
public  Expression getPColCondition(){
   if(!canPushDown || pColConditions.size() == 0)
       return null;
	Expression cond =  pColConditions.get(0);
	for(int i=1; i<pColConditions.size(); i++){
		//if there is more than one condition expression
		// connect them using "AND"s
		cond = new Expression.BinaryExpression(cond, pColConditions.get(i),
                   OpType.OP_AND);
	}
	return cond;
}
开发者ID:sigmoidanalytics，项目名称:spork-streaming，代码行数:16，代码来源:PColFilterExtractor.java

示例8: getExpression

import org.apache.pig.Expression; //导入方法依赖的package包/类
private Expression getExpression(BinaryExpression binOp, OpType
        opType) throws FrontendException {
    return new Expression.BinaryExpression(getExpression(binOp.getLhs())
            ,getExpression(binOp.getRhs()), opType);
}
开发者ID:sigmoidanalytics，项目名称:spork-streaming，代码行数:6，代码来源:PColFilterExtractor.java

示例9: getExpression

import org.apache.pig.Expression; //导入方法依赖的package包/类
protected Expression getExpression(BinaryExpression binOp, OpType
        opType) throws FrontendException {
    return new Expression.BinaryExpression(getExpression(binOp.getLhs())
            , getExpression(binOp.getRhs()), opType);
}
开发者ID:sigmoidanalytics，项目名称:spork，代码行数:6，代码来源:FilterExtractor.java


注：本文中的org.apache.pig.Expression.BinaryExpression方法示例由纯净天空整理自Github/MSDocs等开源代码及文档管理平台，相关代码片段筛选自各路编程大神贡献的开源项目，源码版权归原作者所有，传播和使用请参考对应项目的License；未经允许，请勿转载。