com.espertech.esper.client.soda

Class TableAccessExpression

java.lang.Object

com.espertech.esper.client.soda.ExpressionBase

com.espertech.esper.client.soda.TableAccessExpression

All Implemented Interfaces:

Expression, Serializable

public class TableAccessExpression
extends ExpressionBase

Table access expression.

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
TableAccessExpression() Ctor.
TableAccessExpression(String tableName, List<Expression> keyExpressions, String optionalColumn, Expression optionalAggregate) Ctor.

Method Summary

Modifier and Type	Method and Description
List<Expression>	getKeyExpressions() Returns the primary key expressions.
Expression	getOptionalAggregate() Returns the optional table column aggregation accessor to use.
String	getOptionalColumn() Returns the optional table column name to access.
ExpressionPrecedenceEnum	getPrecedence() Returns precedence.
String	getTableName() Returns the table name.
void	setKeyExpressions(List<Expression> keyExpressions) Sets the primary key expressions.
void	setOptionalAggregate(Expression optionalAggregate) Sets the optional table column aggregation accessor to use.
void	setOptionalColumn(String optionalColumn) Sets the optional table column name to access.
void	setTableName(String tableName) Sets the table name.
void	toPrecedenceFreeEPL(StringWriter writer) Renders the expressions and all it's child expression, in full tree depth, as a string in language syntax.

Methods inherited from class com.espertech.esper.client.soda.ExpressionBase

addChild, getChildren, getTreeObjectName, renderAggregation, setChildren, setTreeObjectName, toEPL, toPrecedenceFreeEPL, toPrecedenceFreeEPL

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

TableAccessExpression

public TableAccessExpression()

Ctor.

TableAccessExpression

public TableAccessExpression(String tableName,
                             List<Expression> keyExpressions,
                             String optionalColumn,
                             Expression optionalAggregate)

Ctor.

Parameters:

tableName - the table name

keyExpressions - the list of key expressions for each table primary key in the same order as declared

optionalColumn - optional column name

optionalAggregate - optional aggregation function

Method Detail

getPrecedence

public ExpressionPrecedenceEnum getPrecedence()

Description copied from interface: Expression

Returns precedence.

Returns:

precedence

toPrecedenceFreeEPL

public void toPrecedenceFreeEPL(StringWriter writer)

Description copied from class: ExpressionBase

Renders the expressions and all it's child expression, in full tree depth, as a string in language syntax.

Specified by:

toPrecedenceFreeEPL in class ExpressionBase

Parameters:

writer - is the output to use

getTableName

public String getTableName()

Returns the table name.

Returns:

table name

setTableName

public void setTableName(String tableName)

Sets the table name.

Parameters:

tableName - table name

getKeyExpressions

public List<Expression> getKeyExpressions()

Returns the primary key expressions.

Returns:

primary key expressions

setKeyExpressions

public void setKeyExpressions(List<Expression> keyExpressions)

Sets the primary key expressions.

Parameters:

keyExpressions - primary key expressions

getOptionalColumn

public String getOptionalColumn()

Returns the optional table column name to access.

Returns:

table column name or null if accessing row

setOptionalColumn

public void setOptionalColumn(String optionalColumn)

Sets the optional table column name to access.

Parameters:

optionalColumn - table column name or null if accessing row

getOptionalAggregate

public Expression getOptionalAggregate()

Returns the optional table column aggregation accessor to use.

Returns:

table column aggregation accessor

setOptionalAggregate

public void setOptionalAggregate(Expression optionalAggregate)

Sets the optional table column aggregation accessor to use.

Parameters:

optionalAggregate - table column aggregation accessor