org.objectweb.medor.expression.lib
Class Like
java.lang.Object
org.objectweb.medor.clone.lib.BasicCloneable
org.objectweb.medor.expression.lib.BasicExpression
org.objectweb.medor.expression.lib.BasicOperator
org.objectweb.medor.expression.lib.Like
- All Implemented Interfaces:
- org.objectweb.medor.clone.api.Cloneable, java.lang.Cloneable, Expression, Operator, java.io.Serializable
- public class Like
- extends BasicOperator
- implements Operator
Is an operator representing the LIKE or the NOT LIKE operator. The regular
expressions are used for the string comparaison. The current memory
evaluation does not support escape characters.
- Author:
- S.Chassande-Barrioz
- See Also:
- Serialized Form
Fields inherited from interface org.objectweb.medor.expression.api.Operator |
ABS, AND, AVG, BITWIZE, CONCAT, CONDAND, CONDOR, COUNT, DIV, EQUAL, FIRSTLOCATE, GREATER, GREATEREQUAL, IN, INDEXEDLOCATE, LENGTH, LOWER, LOWEREQUAL, MAX, MEMBEROF, MIN, MINUS, MOD, MULT, NAV, NOT, NOTEQUAL, NOTMEMBEROF, OR, PLUS, SQRT, STRING_LOWER, STRING_UPPER, SUBSTRING, SUM, UMINUS |
Method Summary |
java.lang.Object |
clone(java.lang.Object clone,
java.util.Map obj2clone)
Clone the current object. |
Operand |
compileExpression()
compiles the operator:
- compiles operands
- verify type of parameter
- compute the result holder (operand)
- try to compile the pattern matcher if the filter is already defined |
Operand |
evaluate(ParameterOperand[] values,
java.lang.Object o)
Evaluates the operator on operands fetch from the sub expressions. |
java.lang.String |
getOperatorString()
Returns the String representing the operator in Java |
Methods inherited from class org.objectweb.medor.clone.lib.BasicCloneable |
clone, clone, getClone |
Methods inherited from class java.lang.Object |
equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Methods inherited from interface org.objectweb.medor.expression.api.Expression |
getType |
Like
public Like()
Like
public Like(Expression str,
Expression pattern,
Expression escape)
Like
public Like(Expression str,
Expression pattern,
Expression escape,
boolean not)
Like
public Like(Expression str,
Expression pattern)
Like
public Like(Expression str,
Expression pattern,
boolean not)
clone
public java.lang.Object clone(java.lang.Object clone,
java.util.Map obj2clone)
throws java.lang.CloneNotSupportedException
- Description copied from interface:
org.objectweb.medor.clone.api.Cloneable
- Clone the current object.
- Specified by:
clone
in interface org.objectweb.medor.clone.api.Cloneable
- Overrides:
clone
in class BasicOperator
- Throws:
java.lang.CloneNotSupportedException
getOperatorString
public java.lang.String getOperatorString()
- Description copied from interface:
Operator
- Returns the String representing the operator in Java
- Specified by:
getOperatorString
in interface Operator
- Returns:
- the String representing the operator in Java
compileExpression
public Operand compileExpression()
throws ExpressionException,
MalformedExpressionException
- compiles the operator:
- compiles operands
- verify type of parameter
- compute the result holder (operand)
- try to compile the pattern matcher if the filter is already defined
- Specified by:
compileExpression
in interface Expression
- Throws:
MalformedExpressionException
- if syntax error
ExpressionException
evaluate
public Operand evaluate(ParameterOperand[] values,
java.lang.Object o)
throws ExpressionException
- Evaluates the operator on operands fetch from the sub expressions.
- Specified by:
evaluate
in interface Expression
- Parameters:
values
- a list of ParameterOperando
- the input Object from which values are taken for the
evaluation
- Returns:
- an Operand containing the result of the evaluation
- Throws:
ExpressionException