org.apache.xpath.Expression Java Examples
The following examples show how to use
org.apache.xpath.Expression.
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Example #1
Source File: WalkingIterator.java From j2objc with Apache License 2.0 | 6 votes |
/** * @see Expression#deepEquals(Expression) */ public boolean deepEquals(Expression expr) { if (!super.deepEquals(expr)) return false; AxesWalker walker1 = m_firstWalker; AxesWalker walker2 = ((WalkingIterator)expr).m_firstWalker; while ((null != walker1) && (null != walker2)) { if(!walker1.deepEquals(walker2)) return false; walker1 = walker1.getNextWalker(); walker2 = walker2.getNextWalker(); } if((null != walker1) || (null != walker2)) return false; return true; }
Example #2
Source File: Compiler.java From j2objc with Apache License 2.0 | 6 votes |
/** * Compile a zero or more predicates for a given match pattern. * * @param opPos The position of the first predicate the m_opMap array. * * @return reference to array of {@link org.apache.xpath.Expression} instances. * * @throws TransformerException if a error occurs creating the Expression. */ public Expression[] getCompiledPredicates(int opPos) throws TransformerException { int count = countPredicates(opPos); if (count > 0) { Expression[] predicates = new Expression[count]; compilePredicates(opPos, predicates); return predicates; } return null; }
Example #3
Source File: RedundentExprEliminator.java From j2objc with Apache License 2.0 | 6 votes |
/** * Assert that the expression is a LocPathIterator, and, if * not, try to give some diagnostic info. */ private final void assertIsLocPathIterator(Expression expr1, ExpressionOwner eo) throws RuntimeException { if(!(expr1 instanceof LocPathIterator)) { String errMsg; if(expr1 instanceof Variable) { errMsg = "Programmer's assertion: expr1 not an iterator: "+ ((Variable)expr1).getQName(); } else { errMsg = "Programmer's assertion: expr1 not an iterator: "+ expr1.getClass().getName(); } throw new RuntimeException(errMsg + ", "+ eo.getClass().getName()+" "+ expr1.exprGetParent()); } }
Example #4
Source File: Function2Args.java From j2objc with Apache License 2.0 | 6 votes |
/** * Set an argument expression for a function. This method is called by the * XPath compiler. * * @param arg non-null expression that represents the argument. * @param argNum The argument number index. * * @throws WrongNumberArgsException If the argNum parameter is greater than 1. */ public void setArg(Expression arg, int argNum) throws WrongNumberArgsException { // System.out.println("argNum: "+argNum); if (argNum == 0) super.setArg(arg, argNum); else if (1 == argNum) { m_arg1 = arg; arg.exprSetParent(this); } else reportWrongNumberArgs(); }
Example #5
Source File: UnionPattern.java From j2objc with Apache License 2.0 | 6 votes |
/** * @see Expression#deepEquals(Expression) */ public boolean deepEquals(Expression expr) { if(!isSameClass(expr)) return false; UnionPattern up = (UnionPattern)expr; if(null != m_patterns) { int n = m_patterns.length; if((null == up.m_patterns) || (up.m_patterns.length != n)) return false; for(int i = 0; i < n; i++) { if(!m_patterns[i].deepEquals(up.m_patterns[i])) return false; } } else if(up.m_patterns != null) return false; return true; }
Example #6
Source File: PredicatedNodeTest.java From j2objc with Apache License 2.0 | 6 votes |
/** * @see Expression#deepEquals(Expression) */ public boolean deepEquals(Expression expr) { if (!super.deepEquals(expr)) return false; PredicatedNodeTest pnt = (PredicatedNodeTest) expr; if (null != m_predicates) { int n = m_predicates.length; if ((null == pnt.m_predicates) || (pnt.m_predicates.length != n)) return false; for (int i = 0; i < n; i++) { if (!m_predicates[i].deepEquals(pnt.m_predicates[i])) return false; } } else if (null != pnt.m_predicates) return false; return true; }
Example #7
Source File: PredicatedNodeTest.java From j2objc with Apache License 2.0 | 6 votes |
/** * Set the number of predicates that this walker has. This does more * that one would think, as it creates a new predicate array of the * size of the count argument, and copies count predicates into the new * one from the old, and then reassigns the predicates value. All this * to keep from having to have a predicate count value. * * @param count The number of predicates, which must be equal or less * than the existing count. */ public void setPredicateCount(int count) { if(count > 0) { Expression[] newPredicates = new Expression[count]; for (int i = 0; i < count; i++) { newPredicates[i] = m_predicates[i]; } m_predicates = newPredicates; } else m_predicates = null; }
Example #8
Source File: FunctionOneArg.java From j2objc with Apache License 2.0 | 6 votes |
/** * @see Expression#deepEquals(Expression) */ public boolean deepEquals(Expression expr) { if(!super.deepEquals(expr)) return false; if(null != m_arg0) { if(null == ((FunctionOneArg)expr).m_arg0) return false; if(!m_arg0.deepEquals(((FunctionOneArg)expr).m_arg0)) return false; } else if(null != ((FunctionOneArg)expr).m_arg0) return false; return true; }
Example #9
Source File: XObject.java From j2objc with Apache License 2.0 | 5 votes |
/** * @see Expression#deepEquals(Expression) */ public boolean deepEquals(Expression expr) { if(!isSameClass(expr)) return false; // If equals at the expression level calls deepEquals, I think we're // still safe from infinite recursion since this object overrides // equals. I hope. if(!this.equals((XObject)expr)) return false; return true; }
Example #10
Source File: RedundentExprEliminator.java From j2objc with Apache License 2.0 | 5 votes |
/** * From an XPath expression component, get the ElemTemplateElement * owner. * * @param expr Should be static expression with proper parentage. * @return Valid ElemTemplateElement, or throw a runtime exception * if it is not found. */ protected ElemTemplateElement getElemFromExpression(Expression expr) { ExpressionNode parent = expr.exprGetParent(); while(null != parent) { if(parent instanceof ElemTemplateElement) return (ElemTemplateElement)parent; parent = parent.exprGetParent(); } throw new RuntimeException(XSLMessages.createMessage(XSLTErrorResources.ER_ASSERT_NO_TEMPLATE_PARENT, null)); // "Programmer's error! expr has no ElemTemplateElement parent!"); }
Example #11
Source File: RedundentExprEliminator.java From j2objc with Apache License 2.0 | 5 votes |
/** * Visit a LocationPath. * @param owner The owner of the expression, to which the expression can * be reset if rewriting takes place. * @param path The LocationPath object. * @return true if the sub expressions should be traversed. */ public boolean visitLocationPath(ExpressionOwner owner, LocPathIterator path) { // Don't optimize "." or single step variable paths. // Both of these cases could use some further optimization by themselves. if(path instanceof SelfIteratorNoPredicate) { return true; } else if(path instanceof WalkingIterator) { WalkingIterator wi = (WalkingIterator)path; AxesWalker aw = wi.getFirstWalker(); if((aw instanceof FilterExprWalker) && (null == aw.getNextWalker())) { FilterExprWalker few = (FilterExprWalker)aw; Expression exp = few.getInnerExpression(); if(exp instanceof Variable) return true; } } if (isAbsolute(path) && (null != m_absPaths)) { if(DEBUG) validateNewAddition(m_absPaths, owner, path); m_absPaths.addElement(owner); } else if (m_isSameContext && (null != m_paths)) { if(DEBUG) validateNewAddition(m_paths, owner, path); m_paths.addElement(owner); } return true; }
Example #12
Source File: OneStepIterator.java From j2objc with Apache License 2.0 | 5 votes |
/** * @see Expression#deepEquals(Expression) */ public boolean deepEquals(Expression expr) { if(!super.deepEquals(expr)) return false; if(m_axis != ((OneStepIterator)expr).m_axis) return false; return true; }
Example #13
Source File: FunctionPattern.java From j2objc with Apache License 2.0 | 5 votes |
/** * Construct a FunctionPattern from a * {@link org.apache.xpath.functions.Function expression}. * * NEEDSDOC @param expr */ public FunctionPattern(Expression expr, int axis, int predaxis) { super(0, null, null, axis, predaxis); m_functionExpr = expr; }
Example #14
Source File: NodeTest.java From j2objc with Apache License 2.0 | 5 votes |
/** * @see Expression#deepEquals(Expression) */ public boolean deepEquals(Expression expr) { if(!isSameClass(expr)) return false; NodeTest nt = (NodeTest)expr; if(null != nt.m_name) { if(null == m_name) return false; else if(!nt.m_name.equals(m_name)) return false; } else if(null != m_name) return false; if(null != nt.m_namespace) { if(null == m_namespace) return false; else if(!nt.m_namespace.equals(m_namespace)) return false; } else if(null != m_namespace) return false; if(m_whatToShow != nt.m_whatToShow) return false; if(m_isTotallyWild != nt.m_isTotallyWild) return false; return true; }
Example #15
Source File: AxesWalker.java From j2objc with Apache License 2.0 | 5 votes |
/** * @see Expression#deepEquals(Expression) */ public boolean deepEquals(Expression expr) { if (!super.deepEquals(expr)) return false; AxesWalker walker = (AxesWalker)expr; if(this.m_axis != walker.m_axis) return false; return true; }
Example #16
Source File: FunctionMultiArgs.java From j2objc with Apache License 2.0 | 5 votes |
/** * @see Expression#deepEquals(Expression) */ public boolean deepEquals(Expression expr) { if (!super.deepEquals(expr)) return false; FunctionMultiArgs fma = (FunctionMultiArgs) expr; if (null != m_args) { int n = m_args.length; if ((null == fma) || (fma.m_args.length != n)) return false; for (int i = 0; i < n; i++) { if (!m_args[i].deepEquals(fma.m_args[i])) return false; } } else if (null != fma.m_args) { return false; } return true; }
Example #17
Source File: StepPattern.java From j2objc with Apache License 2.0 | 5 votes |
/** * Set the predicates for this match pattern step. * * * @param predicates An array of expressions that define predicates * for this step. */ public void setPredicates(Expression[] predicates) { m_predicates = predicates; if(null != predicates) { for(int i = 0; i < predicates.length; i++) { predicates[i].exprSetParent(this); } } calcScore(); }
Example #18
Source File: FuncExtFunction.java From j2objc with Apache License 2.0 | 5 votes |
/** * Set the parent node. * For an extension function, we also need to set the parent * node for all argument expressions. * * @param n The parent node */ public void exprSetParent(ExpressionNode n) { super.exprSetParent(n); int nArgs = m_argVec.size(); for (int i = 0; i < nArgs; i++) { Expression arg = (Expression) m_argVec.elementAt(i); arg.exprSetParent(n); } }
Example #19
Source File: FunctionOneArg.java From j2objc with Apache License 2.0 | 5 votes |
/** * Set an argument expression for a function. This method is called by the * XPath compiler. * * @param arg non-null expression that represents the argument. * @param argNum The argument number index. * * @throws WrongNumberArgsException If the argNum parameter is greater than 0. */ public void setArg(Expression arg, int argNum) throws WrongNumberArgsException { if (0 == argNum) { m_arg0 = arg; arg.exprSetParent(this); } else reportWrongNumberArgs(); }
Example #20
Source File: Function.java From j2objc with Apache License 2.0 | 5 votes |
/** * @see Expression#deepEquals(Expression) */ public boolean deepEquals(Expression expr) { if(!isSameClass(expr)) return false; return true; }
Example #21
Source File: StepPattern.java From j2objc with Apache License 2.0 | 5 votes |
/** * @see Expression#deepEquals(Expression) */ public boolean deepEquals(Expression expr) { if(!super.deepEquals(expr)) return false; StepPattern sp = (StepPattern)expr; if (null != m_predicates) { int n = m_predicates.length; if ((null == sp.m_predicates) || (sp.m_predicates.length != n)) return false; for (int i = 0; i < n; i++) { if (!m_predicates[i].deepEquals(sp.m_predicates[i])) return false; } } else if (null != sp.m_predicates) return false; if(null != m_relativePathPattern) { if(!m_relativePathPattern.deepEquals(sp.m_relativePathPattern)) return false; } else if(sp.m_relativePathPattern != null) return false; return true; }
Example #22
Source File: Operation.java From j2objc with Apache License 2.0 | 5 votes |
/** * @see Expression#deepEquals(Expression) */ public boolean deepEquals(Expression expr) { if(!isSameClass(expr)) return false; if(!m_left.deepEquals(((Operation)expr).m_left)) return false; if(!m_right.deepEquals(((Operation)expr).m_right)) return false; return true; }
Example #23
Source File: Compiler.java From j2objc with Apache License 2.0 | 5 votes |
/** * Bottle-neck compilation of a unary operation. * * @param unary The parent unary operation. * @param opPos The position in the op map of the parent operation. * * @return The unary argument. * * @throws TransformerException if syntax or other error occurs. */ private Expression compileUnary(UnaryOperation unary, int opPos) throws TransformerException { int rightPos = getFirstChildPos(opPos); unary.setRight(compile(rightPos)); return unary; }
Example #24
Source File: Compiler.java From j2objc with Apache License 2.0 | 5 votes |
/** * Compiles predicates in the step. * * @param opPos The position of the first predicate the m_opMap array. * @param predicates An empty pre-determined array of * {@link org.apache.xpath.Expression}s, that will be filled in. * * @throws TransformerException */ private void compilePredicates(int opPos, Expression[] predicates) throws TransformerException { for (int i = 0; OpCodes.OP_PREDICATE == getOp(opPos); i++) { predicates[i] = predicate(opPos); opPos = getNextOpPos(opPos); } }
Example #25
Source File: Operation.java From j2objc with Apache License 2.0 | 4 votes |
/** * @see ExpressionOwner#getExpression() */ public Expression getExpression() { return m_right; }
Example #26
Source File: FilterExprWalker.java From j2objc with Apache License 2.0 | 4 votes |
/** * Set the inner contained expression of this filter. */ public void setInnerExpression(Expression expr) { expr.exprSetParent(this); m_expr = expr; }
Example #27
Source File: FuncExtFunction.java From j2objc with Apache License 2.0 | 4 votes |
ArgExtOwner(Expression exp) { m_exp = exp; }
Example #28
Source File: WalkingIterator.java From j2objc with Apache License 2.0 | 4 votes |
/** * @see ExpressionOwner#getExpression() */ public Expression getExpression() { return m_firstWalker; }
Example #29
Source File: Operation.java From j2objc with Apache License 2.0 | 4 votes |
/** @return the right operand of binary operation, as an Expression. */ public Expression getRightOperand(){ return m_right; }
Example #30
Source File: AxesWalker.java From j2objc with Apache License 2.0 | 4 votes |
/** * @see ExpressionOwner#getExpression() */ public Expression getExpression() { return m_nextWalker; }